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DEFINING PRIORITY ZONES FOR CONSERVATION AND ECOTOURISM IN A PROTECTED AREA

DEFINIÇÃO DE ZONAS PRIORITÁRIAS PARA A CONSERVAÇÃO E ECOTURISMO EM UMA ÁREA PROTEGIDA

ABSTRACT

With the objective of promoting nature conservation, this study proposes an environmental zoning for a protected area that contains part of the remaining Atlantic Forest, a global hotspot that is home to several endangered species of flora and fauna. Conflicting therewith, the protected area is an important tourist attraction in the region and receives many visitors throughout the year. For the zoning preparation, the main factors and constraints of each objective (ecotourism and conservation) are established, and a multi-criteria analysis is used, in addition to the MOLA (Multi-Objective Land Allocation) algorithm, to establish the most suitable areas for each use. Extreme protection areas are defined through the intersection of endemic vegetation and soils and altitudes above 1,500 m. Thus, a fraction of 18% is obtained for extreme protection, 59% for conservation, and 23% for areas destined for ecotourism development. The results demonstrate the advantages of using these methods, due to their simplicity, which can support administrators in planning the protected area. The zoning is in accordance with the International Union for Conservation of Nature (IUCN) recommendation because the conservation area corresponds to approximately 77% of the park area, reinforcing the suitability and applicability of the methodology that is used for the zoning of a protected area.

Keywords:
GIS; Preservation area; Zoning

RESUMO

Neste trabalho foi proposto um zoneamento para uma área protegida, que tem como missão a conservação da natureza e contém parte da Mata Atlântica residual, um hotspot mundial, que abriga diversas espécies da fauna e flora ameaçadas de extinção. Conflitando-se a esse uso, a área protegida é um importante atrativo turístico da região e recebe muitos visitantes ao longo do ano. Para a elaboração do zoneamento, foram estabelecidos os principais fatores e restrições de cada objetivo (ecoturismo e conservação) e utilizou-se de uma análise multicritério e do algoritmo MOLA (Multi-Objective Land Allocation) para estabelecer as áreas mais adequadas a cada uso. Foram estipuladas áreas de proteção extrema, através de uma interseção entre solos e vegetação endêmicas e altitudes superiores a 1500 m. Assim, obteve-se uma fração de 18% para as áreas destinadas a proteção extrema, 59% para a conservação e 23% para as destinadas ao desenvolvimento do ecoturismo. Os resultados explicitaram as vantagens da utilização desses métodos dada a sua simplicidade, podendo auxiliar os gestores no planejamento da área protegida. O zoneamento obtido está de acordo com a recomendação da IUCN, visto que a área de conservação correspondeu à aproximadamente 77% da área do parque, reforçando a adequabilidade e aplicabilidade da metodologia empregada para o objetivo de zoneamento de área protegidas.

Palavras-chave:
SIG; Área de preservação; Zoneamento

1. INTRODUCTION

Sustainable tourism activities in protected areas are typically called ecotourism. However, reconciling environmental conservation with human activities at any level is a somewhat challenging task. Thus, an effective management strategy in these areas is essential so that ecotourism practices do not cause negative impacts on biodiversity conservation.

Conflicts between ecotourism practices and nature conservation can be particularly observed in protected areas, such as Conservation Units (CUs), where ecotourism activities are performed. One of the main goals of creating a CU is to maintain natural areas with as few changes as possible (CAREY et al., 2000CAREY, C.; DUDLEY, N., STOLTON, S. Squandering paradide? The importance and vulnerability of the world's protected areas. Gland Switzerland: WWF, 2000. [acessado em: 05 de nov. de 2014]. Disponível em: 232.assets.panda.org/downloads/squandering_paradise.pdf
232.assets.panda.org/downloads/squanderi...
). According to the International Union for Conservation of Nature (IUCN), a CU is "An area of land and/or sea especially dedicated to the protection of biological diversity, and of natural and associated cultural resources, and managed through legal or other effective means" (DUDLEY, 2008DUDLEY, N. Guidelines for applying protected area management categories. Gland, Switzerland: IUCN, 2008.).

In this sense, as a spatial planning tool, zoning aims to spatially organise a CU into plots, called zones, which require different levels of protection and intervention, helping the CU meet its specific management objectives (IBAMA, 2002INSTITUTO BRASILEIRO DO MEIO AMBIENTE E DOS RECURSOS NATURAIS RENOVÁVEIS - IBAMA. Roteiro metodológico de planejamento: Parque Nacional, Reserva Biológica, Reserva Ecológica. 2002. [acessado em: 28 de out. 2014] Disponível em: http://www.icmbio.gov.br/portal/images/stories/imgs-unidades-coservacao/roteiroparna.pdf.
http://www.icmbio.gov.br/portal/images/s...
). The defined zones receive specific strategic management methods and land use standards according to their objectives. These uses typically consist of strict nature conservation actions for areas designated as protected and of controlled levels of human activities in other areas (BRASIL, 2000BRASIL. Constituição. Leis e decretos. Lei nº 9.985, de 18 de julho de 2000. Regulamenta o art. 225, § 1º, incisos I, II, III e VII da Constituição Federal, institui o Sistema Nacional de Unidades de Conservação da Natureza e dá outras providências. [acessado em: 27 de out. de 2014]. Disponível em: http://www.planalto.gov.br/ccivil_03/leis/l9985.htm
http://www.planalto.gov.br/ccivil_03/lei...
; GENELETTI; van DUREN, 2008GENELETTI, D.; van DUREN, I. Protected area zoning for conservation and use: A combination of spatial multicriteria and multiobjective evaluation. Landscape and Urban Planning, v.85, n.2, p.97-110, 2008.; ZHANG et al., 2013ZHANG, Z.; SHERMAN, R.; YANG, Z.; WU, R.; WANG, W.; YIEN, M.; YANG, G.; OU, X. Integrating a participatory process with a GIS-based multi-criteria decision analysis for protected area zoning in China. Journal for Nature Conservation, v.21, n.4, p.225-240, 2013.).

Geographic Information System (GIS) technology contributes to the planning of a CU, classifying areas according to attributes of interest of use. The combination of the Multi-Criteria Evaluation (MCE) and Multi-Objective Land Allocation (MOLA) tools of the IDRISI software program allows the zoning of a CU based on a set of preferences, criteria, and indicators to be developed and provides the resolution of land use and occupation conflict issues through the visualisation and mapping of areas (MARINONI, 2004MARINONI, O. Implementation of the analytical hierarchy process with VBA in ArcGIS. Computers & Geosciences, v.30, n.6, p.637-646, 2004.; HAJEHFOROOSHNIA et al., 2011HAJEHFOROOSHNIA, S.; SOFFIANIAN, A.; MAHINY, A.S.; FAKHERAN, S. Multi objective land allocation (MOLA) for zoning Ghamishloo Wildlife Sanctuary in Iran. Journal for Nature Conservation, v.19, n.4, p.254-262, 2011.). However, there is still a need for more detailed case studies that illustrate the steps and the use of such methods for performing effective zoning that can be applied in various contexts (ZHANG et al., 2013ZHANG, Z.; SHERMAN, R.; YANG, Z.; WU, R.; WANG, W.; YIEN, M.; YANG, G.; OU, X. Integrating a participatory process with a GIS-based multi-criteria decision analysis for protected area zoning in China. Journal for Nature Conservation, v.21, n.4, p.225-240, 2013.).

According to the Ministry of the Environment, Brazil has 1,940 federal, state, and municipal conservation units (BRASIL, 2015BRASIL. Ministério do Meio Ambiente Cadastro Nacional de Unidades de Conservação /- Cnuc/Mma. Dados consolidados. [acessado em: 02 de mar de 2015] Disponível em: http://www.mma.gov.br/areas-protegidas/cadastro-nacional-de-ucs/dados-consolidados
http://www.mma.gov.br/areas-protegidas/c...
), and many of them still carry the responsibility of protecting two global hotspots: the Cerrado and the Atlantic Forest, with the latter ranking fifth in a list containing 25 global conservation priorities (BRANDON et al., 2005BRANDON, K.; FONSECA, G.A.B.; RYLANDS, A.B.; SILVA, J.M. Conservação brasileira: desafios e oportunidades. Megadiversidade, v.1, n.1, p.7-13, 2005.). The Atlantic Forest is most likely the most devastated and seriously threatened biome in the world, with only approximately 22% of its remaining original cover (LAGOS; MULLER, 2007LAGOS, A.R.; MULLER, B.L.A. Hotspot Brasileiro - Mata Atlântica. Saúde e Ambiente em Revista, v.2, n.2, p.35-45, 2007.; BRASIL, MMA, 2015BRASIL. Ministério do Meio Ambiente Cadastro Nacional de Unidades de Conservação /- Cnuc/Mma. Dados consolidados. [acessado em: 02 de mar de 2015] Disponível em: http://www.mma.gov.br/areas-protegidas/cadastro-nacional-de-ucs/dados-consolidados
http://www.mma.gov.br/areas-protegidas/c...
). In addition, in this hotspot, the pace of change is among the fastest, and hence, the need for conservation action is more urgent (GALINDO-LEAL; CÂMARA, 2003GALINDO-LEAL, C.; CÂMARA, I.G. Atlantic forest hotspots status: an overview. In: GALINDO-LEAL, C.; CÂMARA, I.G. (Ed.). The Atlantic Forest of South America: biodiversity status, threats, and outlook. Washington: Center for Applied Biodiversity Science e Island Press, 2003. p.3-11.).

The Serra do Brigadeiro State Park (Parque Estadual da Serra do Brigadeiro - PESB) is one of Brazil's most globally important CUs because it is the home of part of the residual Atlantic Forest and the biodiversity inherent to it. According to the State Forest Institute, the park is home to springs that contribute to two major watersheds, endemic vegetation and soil, and endangered species of flora and fauna (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
). In existing floristic surveys of the PESB, 13 species that are part of the Red List of Endangered Plant Species of the state of Minas Gerais, Brazil (BIODIVERSITAS, 2000BIODIVERSITAS FOUNDATION. Livro Vermelho das espécies ameaçadas de extinção da flora de Minas Gerais. 2000. Acessado em: 18 de nov. de 2014. Disponível em: http://www.biodiversitas.org.br/publicacoes
http://www.biodiversitas.org.br/publicac...
) and seven species in the Red Book of Brazilian Flora (MARTINELLI; MORAES, 2013MARTINELLI, G.; MORAES, M.A. Livro Vermelho da Flora no Brasil. Rio de Janeiro: Andrea Jakobsson; Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, 2013. 1100p.) have been found. In the List of Endangered Brazilian Fauna Species registered in the Red Book, two bird species and four mammal species are found (MACHADO et al., 2008MACHADO, A.B.M.; DRUMMOND, G.M.; PAGLIA, A.P. Livro Vermelho da Fauna Brasileira ameaçada de extinção. Brasília, DF: Ministério da Agricultura; Belo Horizonte, MG: Fundação Biodiversitas, 2008. 2v. 1420p. (Biodiversidade, 19).). Therefore, PESB is a very important CU among the "Priorities for Biodiversity Conservation in Minas Gerais, Brazil" (DRUMMOND et al., 2005DRUMMOND, G.M.; MARTINS, C.S.; MACHADO, A.B.M.; SEBAIO, F.A.; ANTONINI, Y. Biodiversidade em Minas Gerais: um atlas para sua conservação. Belo Horizonte: Fundação Biodiversitas, 2005. v.2. 222p.).

From the ecotourism perspective, PESB boasts lush landscape scenery with the presence of waterfalls and peaks that attract numerous visitors. There are unmonitored, disordered, and clandestine visitation problems in some areas of the park (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
). According to Moraes et al. (2010)MORAES, W.V.; RIBEIRO, G.A.; DORNELAS, V.F.; CARDOSO, R.M.; FREITAS, I. Perfil dos turistas do Parque Estadual da Serra do Brigadeiro (PESB): subsídios para o turismo comunitário. Revista Brasileira de Ecoturismo, v.3, n.3, p.338-381, 2010., Serra do Brigadeiro is threatened due to the rapid advancement of developmental models that suppress traditional cultures. Therefore, one should encourage the implementation of activities that take advantage of the PESB's potential in a more sustainable manner.

Law 9.985, of July 18, 2000, which institutes the National System of Conservation Units (Sistema Nacional de Unidades de Conservação - SNUC) in Brazil, establishes criteria for the creation, deployment, and management of CUs (BRASIL, 2000BRASIL. Constituição. Leis e decretos. Lei nº 9.985, de 18 de julho de 2000. Regulamenta o art. 225, § 1º, incisos I, II, III e VII da Constituição Federal, institui o Sistema Nacional de Unidades de Conservação da Natureza e dá outras providências. [acessado em: 27 de out. de 2014]. Disponível em: http://www.planalto.gov.br/ccivil_03/leis/l9985.htm
http://www.planalto.gov.br/ccivil_03/lei...
). However, the creation of a CU does not guarantee protection of the ecosystems that are part of it (DUDLEY et al., 1999DUDLEY, N.; GUJJA, B.; JACKSON, B.; JEANRENAUD, J.P.; OVIEDO, G.; PHILLIPS, A.; ROSABEL, P.; WELLS, S. Challenges for protected areas in the 21st century. In: STOLTON, S.; DUDLEY, N. Partnerships for protection: New Strategies for Planning and Management for Protected Areas, 1999. cap.1. p.3-12.). The lack of land tenure, the practice of illegal activities in and around the units, conflicts with local populations, and the lack of efficient and applicable management plans can be noted as problems that hinder the implementation and efficacy of a CU (TERBORGH et al., 2002TERBORGH, J.; SCHAIK, C.; DAVENPORT, L.; MADHU, R. Tornando os parques eficientes: estratégias para a conservação da natureza nos trópicos. Curitiba: UFPR/Fundação O Boticário, 2002. 518p.; DOUROJEANNI, 2003DOUROJEANNI, M.J. Análise crítica dos planos de manejo de áreas protegidas no Brasil. In: BAGER, A. (Ed). Áreas protegidas: conservação no âmbito do Cone Sul. Pelotas: 2003. p.1-20.).

Thus, it is of the utmost importance for the protected areas that they have a management and administration strategy to minimise these problems. In this sense, zoning, using GIS techniques, has been gaining momentum. However, the lack of zoning is common for protected areas in developing countries, and consequently, many protected areas are not effective in achieving the goals that were established in their creation (SABATINI et al., 2007SABATINI, M.C.; VERDIELL, A.; RODRIGUEZ, I.R.M.; VIDAL, M. A quantitative method for zoning of protected areas and its spatial ecological implications. Journal of Environment Management, v.83, n.2, p.198-206, 2007.). Hajehforooshnia et al. (2011)HAJEHFOROOSHNIA, S.; SOFFIANIAN, A.; MAHINY, A.S.; FAKHERAN, S. Multi objective land allocation (MOLA) for zoning Ghamishloo Wildlife Sanctuary in Iran. Journal for Nature Conservation, v.19, n.4, p.254-262, 2011. state that their study is one of the few that uses MOLA for zoning. In the scientific literature, one can find fewer publications on the zoning of land parks than on the zoning of marine parks.

Given the importance of preserving nature and the problematic situation of conflicts of land use and occupation in the PESB, this study aims to show the integration of the MCE and MOLA tools, in addition to their advantages, to define priority areas for extreme protection, conservation, and ecotourism development.

The relevance of the work is the methodology that is used with MCE and especially MOLA, which are tools that are still little explored in the context of zoning land for parks. These tools are used to generate the suitability maps, conflicting areas, and the final zoning, which may assist park managers in their decision-making.

2. MATERIAL AND METHODS

2.1. Study Area

The Serra do Brigadeiro State Park (PESB) is located in the state of Minas Gerais, Brazil, between the meridians 42º 40' and 40º 20' West and the parallels 20º 33' and 21º 00' South (Figure 1). PESB is managed by the State Forestry Institute of Minas Gerais (Instituto Estadual de Florestas de Minas Gerais - IEF/MG) and covers an area of 14,984 hectares with altitudes ranging between 1,400 and 1,985 metres. The climate is considered mesothermal, with mild to hot and humid summers; the average annual temperature is 18ºC, reaching 0ºC in the winter and 23ºC during the hottest days; and the average rainfall is approximately 1,300 mm, with rains from November to March (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
). The mountainous terrain is characterised by the presence of pontoons and ridges, alternated by altitude fields, rocky outcrops, endemic vegetation and soils, and native species of the Atlantic Forest. Serra do Brigadeiro is the home to several springs that contribute to forming major rivers of two river basins, in addition to protecting several endangered species of flora and fauna (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
).

Figure 1
Location of the Serra do Brigadeiro State Park (PESB), Brazil.
Figura 1
Localização do Parque Estadual da Serra do Brigadeiro (PESB), Brasil.

2.2. Data collection

The zoning of the PESB was performed in a GIS environment, with the ArcGIS 10.1 (ESRI, 2014ENVIRONMENTAL SYSTEMS RESEARCH INSTITUTE - ESRI. ArcGIS Desktop 10.1. New York: 2014. CD ROM.) and IDRISI Selva 17.0 (EASTMAN, 2012EASTMAN, J.R. IDRISI Selva. Worcester, MA: Clark University, 2012.). The broad database used includes the following: maps of soil types, vegetation, land use and occupation, roads, trails, peaks, sights, altimetry, hydrography, park boundaries, administrative headquarters, inns, employee residences, gates, and the communities around PESB.

Most of the database was obtained from the Centre of Studies and Forestry Development (Centro de Estudos e Desenvolvimento Florestal - CEDEF) in the city of Viçosa, Minas Gerais. Some ecotourist spots were extracted in the KML file format from the software Google Earth version 7.1.3.22.3 (2014) and converted into the shapefile format using ArcGIS 10.1. Other ecotourist spots were obtained through the geographic coordinates that are described in the PESB Management Plan, which is published by the IEF (2007)INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
. The hydrography and altimetry were extracted from an image in the GEOTIFF format, 1:250,000 scale, obtained from the website of the Brazilian Agricultural Research Corporation (Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA) (MIRANDA, 2005MIRANDA, E.E. Brasil em relevo. Campinas: Embrapa Monitoramento por Satélite. 2005. [acessado em: 24 de jun. de 2014]. Disponível em: http://www.relevobr.cnpm.embrapa.br
http://www.relevobr.cnpm.embrapa.br...
). The springs were obtained from the hydrography with the "feature vertices to points" tool in ArcGIS 10.1.

Through the PESB altimetry, hydrography, and boundaries, the digital elevation model (DEM) was created. Spurious depressions were eliminated, generating a hydrographically conditioned model. Still in ArcGIS 10.1, with the "Merge" tool, the ecotourism attractions were grouped. The grouping related the attractions as follows: (a) Group 1 corresponds to the most visited places by ecotourists, such as waterfalls and inns; (b) Group 2 refers to the areas with a medium frequency of visitation, such as trails and peaks; and (c) Group 3 corresponds to the places that are mainly associated with the administrative sectors of PESB, with less frequent visitation.

After the data processing in ArcGIS 10.1, the data manipulation continued in IDRISI Selva for multi-criteria evaluation and land allocation.

2.3. Multi-Criteria Evaluation and Land Allocation

IDRISI Selva was used for multi-criteria evaluation and land allocation with the use of the Multi-Criteria Evaluation (MCE) and Multi-Objective Land Allocation (MOLA) tools.

The "fuzzy" function was used to standardise the factors in the range of 0 to 255 with linear rules, and the Analytical Hierarchy Process (AHP) was used to compare the factors pairwise and then attribute weights to each. For each objective - ecotourism and conservation - a Weighted Linear Combination (WLC) scenario was created. As a result, a suitability map was obtained for conservation and another map for ecotourism.

These maps were then ordered in terms of suitability through the "Rank" algorithm; subsequently, with the "CrossTab" tool, the scenarios were crossed and compared, and the conflicting areas were identified.

Finally, the MOLA algorithm was used to resolve conflicts in areas that are destined for both objectives, conservation and ecotourism, prioritising the objective cell with the highest weight. To process this algorithm, the images that were obtained in "Rank", the weights, and the required area of each objective were inserted. Due to the importance of biodiversity conservation of the PESB, the highest weight was attributed to the conservation objective (0.7) compared to ecotourism (0.3). The required area for conservation was calculated according to the IUCN, which recommends that at least 75% of land or water within a protected area be managed to protect natural ecosystems, species, and their associated habitats (DUDLEY, 2008DUDLEY, N. Guidelines for applying protected area management categories. Gland, Switzerland: IUCN, 2008.). Thus, the areas that were defined for ecotourism and conservation were 3,746.10 and 11,238.20 hectares, respectively.

Despite the importance of mapping the potential habitats of the endangered species in the park, it was not possible to obtain such information and/or mapping. To develop these, the participation of a team that specialises in surveying wildlife, flora, and habitats would be required, including field sampling and subsequent data processing. However, due to the imposition of land relief and areas with endemic vegetation or soils, to prioritise conservation areas with little or no human interference, the extreme protection zone was created.

The extreme protection zone resulted from the intersection of endemic soil and vegetation maps, combined with an altitude above 1,500 metres. The PESB areas that are above 1,500 metres in altitude are characterised by a high-mountain environment with rich endemic vegetation and soils and are virtually untouched and isolated (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
). This zone was spatially superimposed onto the map that was obtained after the MOLA, finally resulting in the three management zones: the extreme protection zone, the conservation zone, and the ecotourism zone.

2.4. Definition of the criteria

The identification of the use criteria of natural areas is a technical activity based on theory, empirical research, or common sense (HAJEHFOROOSHNIA et al., 2011HAJEHFOROOSHNIA, S.; SOFFIANIAN, A.; MAHINY, A.S.; FAKHERAN, S. Multi objective land allocation (MOLA) for zoning Ghamishloo Wildlife Sanctuary in Iran. Journal for Nature Conservation, v.19, n.4, p.254-262, 2011.). Moreover, decision-making with regard to ecotourism in protected areas is a challenging task because it involves people from several fields, in addition to the protected area administrators (EAGLES, 2002EAGLES, P.F.J. Trends in Park Tourism: economics, Finance and Management. Journal of Sustainable Tourism, v.10, n.2, p.132-153, 2002.). The criteria for conservation and ecotourism (Tables 1 and2) were previously defined and evaluated, and they were worked into a single hierarchical MCE for each objective. Based on the analysis of these criteria, the constraints and factors were established.

Table 1
Defined criteria for the conservation objectives.
Tabela 1
Critérios definidos para o objetivo conservação.
Table 2
Defined criteria for ecotourism objectives.
Tabela 2
Critérios definidos para o objetivo ecoturismo.

To establish the constraints and control points of the "fuzzy" function for each factor, the following were taken as the basis: Law 12.651/2012 - Brazilian Forest Code (BRASIL, 2012BRASIL. Constituição. Leis e decretos. Medida Provisória nº 571, de 25 de maio de 2012. Altera a Lei no 12.651, de 25 de maio de 2012, que dispõe sobre a proteção da vegetação nativa; altera as Leis nos 6.938, de 31 de agosto de 1981, 9.393, de 19 de dezembro de 1996, e 11.428, de 22 de dezembro de 2006; revoga as Leis nos 4.771, de 15 de setembro de 1965, e 7.754, de 14 de abril de 1989, e a Medida Provisória no 2.166-67, de 24 de agosto de 2001. [acessado em: 20 de nov. de 2014].Disponível em: http://www.planalto.gov.br/ccivil_03/_Ato2011-2014/2012/Mpv/571.htm
http://www.planalto.gov.br/ccivil_03/_At...
), the Methodological Planning Roadmap of the Brazilian Institute of the Environment and Renewable Natural Resources (Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis - IBAMA) (2002)INSTITUTO BRASILEIRO DO MEIO AMBIENTE E DOS RECURSOS NATURAIS RENOVÁVEIS - IBAMA. Roteiro metodológico de planejamento: Parque Nacional, Reserva Biológica, Reserva Ecológica. 2002. [acessado em: 28 de out. 2014] Disponível em: http://www.icmbio.gov.br/portal/images/stories/imgs-unidades-coservacao/roteiroparna.pdf.
http://www.icmbio.gov.br/portal/images/s...
, and the Management Plan of the PESB (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
), in addition to considerations found in the literature (BONFIM et al., 2003BONFIM, V.R.; RIBEIRO, G.A.; SILVA, E.; BRAGA, G.M. Diagnóstico do uso do fogo no entorno do Parque Estadual da Serra do Brigadeiro (PESB), MG. Revista Árvore, v.27, n.1, p.87-94, 2003.; FUNG; WONG, 2007FUNG, T.; WONG, F.K.K. Ecotourism planning using multiple criteria evaluation with GIS. Geocarto International, v.22, n.2, p.87-105, 2007.; SOUZA; MARTOS, 2008SOUZA, P.C.; MARTOS, H.L. Estudo do uso público e análise ambiental das trilhas em uma unidade de conservação de uso sustentável: Floresta Nacional de Ipanema, IPERÓ - SP. Revista Árvore, v.32, n.1, p.91-100, 2008.; COHEN; SILVA, 2010COHEN, M.; SILVA, J.F. Evaluation of collaborative strategies for ecotourism and recreational activities in natural parks of Rio de Janeiro. Revista de Administração Pública, v.44, p.1097-1123, 2010.; ZHANG et al., 2013ZHANG, Z.; SHERMAN, R.; YANG, Z.; WU, R.; WANG, W.; YIEN, M.; YANG, G.; OU, X. Integrating a participatory process with a GIS-based multi-criteria decision analysis for protected area zoning in China. Journal for Nature Conservation, v.21, n.4, p.225-240, 2013.).

3. RESULTS

The suitability of the conservation and ecotourism maps (Figures 2a, 2b) were based on the established criteria. In general, the best suitability results for conservation were found at the peaks of the high altitudes of the park, where rock pontoons and endemic species are predominant. The distance from springs, hydrography, and endemic plant species were the most important criteria for developing the park's conservation suitability map (Table 3). A comparison matrix was prepared for the consideration of the factors.

Figure 2
a) WLC scenario for conservation, b) WLC scenario for ecotourism, c) Conflicting regions, d) Zoning.
Figura 2
a) cenário WLC para conservação, b) cenário WLC para ecoturismo, c) regiões de conflito, d) zoneamento.

Table 3
Criteria weights based on the pairwise comparison matrix: a) Conservation, b) Ecotourism.
Tabela 3
Pesos dos critérios a partir da matriz de comparação par a par: a) Conservação, b) Ecoturismo.

The suitability map for ecotourism had the best results in the central areas of the park, through which the paved road goes, and near the head office and inns. The most important criterion for the ecotourism suitability map was the proximity to points in Group 1 because in this group are the most recognised and visited tourist attractions where most of the park's visitors go. The proximity to paved and non-paved roads was considered a factor as important as the sights because the accessibility to the sites is closely related to the visitation frequency (Table 3).

Although the criteria used for ecotourism and conservation are different, some areas showed suitability for both objectives. These areas, called conflict regions, were identified by running the "CrossTab" command, and they corresponded to 16.5% of the park's area (Figure 2c). Thus, through the MOLA algorithm, each pixel was allocated to one of the objectives; then, the zone that was defined for extreme protection was overlaid onto this map. The result was the final zoning of the park, with 23% of the areas being destined for ecotourism, 59% for conservation, and 18% for extreme protection (Figure 2d).

4. DISCUSSION

The Atlantic Forest is the second largest rainforest in the Americas; it originally stretched along the Brazilian coast, and in the past, it covered over 1.5 million km2, with 92% of it belonging to Brazil (FUNDAÇÃO SOS MATA ATLÂNTICA and INPE, 2002FUNDAÇÃO SOS MATA ATLÂNTICA E INPE. Atlas dos remanescentes florestais da Mata Atlântica e ecossistemas associados no período de 1995-2000. São Paulo: Fundação SOS Mata Atlântica e Instituto Nacional de Pesquisas Espaciais, 2002.; GALINDO-LEAL; CÂMARA, 2003GALINDO-LEAL, C.; CÂMARA, I.G. Atlantic forest hotspots status: an overview. In: GALINDO-LEAL, C.; CÂMARA, I.G. (Ed.). The Atlantic Forest of South America: biodiversity status, threats, and outlook. Washington: Center for Applied Biodiversity Science e Island Press, 2003. p.3-11.). Currently, only approximately 7% of the Atlantic Forest remains well conserved in segments of more than 100 hectares. Although reduced and very fragmented, it is estimated that there are approximately 20,000 plant species in the Atlantic Forest (approximately 35% of the existing species in Brazil), including several endemic and endangered species. This wealth is greater than in some other continents (17,000 species in North America and 12,500 in Europe), and for this reason, the Atlantic Forest is a priority for the conservation of global biodiversity (BRASIL, MMA, 2015BRASIL. Ministério do Meio Ambiente Cadastro Nacional de Unidades de Conservação /- Cnuc/Mma. Dados consolidados. [acessado em: 02 de mar de 2015] Disponível em: http://www.mma.gov.br/areas-protegidas/cadastro-nacional-de-ucs/dados-consolidados
http://www.mma.gov.br/areas-protegidas/c...
). The PESB, with an area that is larger than 14,000 hectares, is home to a large extension of the remaining Atlantic Forest in Minas Gerais (IEF, 2007INSTITUTO ESTADUAL DE FLORESTAS - IEF. Plano de Manejo do Parque Estadual da Serra do Brigadeiro. 2007. [acessado em: 10 de nov. de 2014]. Disponível em: http://www.ief.mg.gov.br/areas-protegidas/gestao/1712-plano-de-manejo-parque-estadual-serra-do-brigadeiro
http://www.ief.mg.gov.br/areas-protegida...
), and therefore, it is important to invest in actions that promote its conservation.

It is noteworthy that conservation is expected for the PESB area in its entirety, though not all areas have this designation in their names. According to Binot et al. (2009)BINOT, A.; HANON, L.; JOIRIS, D.V.; DULIEU, D. The challenge of participatory natural resource management with mobile herders at the scale of a Sub-Saharan African protected area. Biodiversity and Conservation, v.18, p.2645-2662, 2009., most natural resource management programmes aim to integrate issues of conservation and development, involving the stakeholders in the management of protected areas. Thus, the purpose of the proposed zoning was to prioritise some areas that need further efforts for biodiversity conservation and to sustainably manage the greater suitability areas for the development of ecotourism within the boundaries of the PESB.

The areas that are destined for conservation are mainly in the higher altitude regions of the PESB. When adding the extreme protection areas to the conservation areas, the result is approximately 11,481 hectares, corresponding to 77% of the total area of the park. As expected, this result is in line with the recommendation by the IUCN (75% rule).

Using a multi-criteria analysis, Zhang et al. (2013)ZHANG, Z.; SHERMAN, R.; YANG, Z.; WU, R.; WANG, W.; YIEN, M.; YANG, G.; OU, X. Integrating a participatory process with a GIS-based multi-criteria decision analysis for protected area zoning in China. Journal for Nature Conservation, v.21, n.4, p.225-240, 2013. develop a zoning study for a park in China, dividing it into five zones, where those destined for greater conservation (zones 1 and 2) amount to 71% of the park's total area. Hajehforoosshnia et al. (2011)HAJEHFOROOSHNIA, S.; SOFFIANIAN, A.; MAHINY, A.S.; FAKHERAN, S. Multi objective land allocation (MOLA) for zoning Ghamishloo Wildlife Sanctuary in Iran. Journal for Nature Conservation, v.19, n.4, p.254-262, 2011. conduct a zoning study for a protected area in Iran, using multi-criteria analysis and MOLA, and the area destined for conservation only is approximately 70% of the park. Geneletti and Van Duren (2008)GENELETTI, D.; van DUREN, I. Protected area zoning for conservation and use: A combination of spatial multicriteria and multiobjective evaluation. Landscape and Urban Planning, v.85, n.2, p.97-110, 2008. use multi-criteria analysis and MOLA in a protected area in Italy and define three zones, with the sum of the stable areas covering 70% of the protected area. These authors consider the respective zoning results to be acceptable.

The areas that are destined for ecotourism in the park correspond to 22% of the total area. This percentage is close to the result of 29.02% of the area found by Bunruamkaew and Murayama (2011)BUNRUAMKAEW, K.; MURAYAMA, Y. Site Suitability Evaluation for Ecotourism Using GIS & AHP: A Case Study of Surat Thani Province, Thailand. Procedia Social and Behavioral Sciences, v.21, p.269-278, 2011. that is classified as moderately suitable for ecotourism in a protected area in Thailand, where passive activities with minimal impact on the environment are allowed. These authors also use the MCE method and demonstrate the ability to apply these methods to other protected areas. In general, the ecotourism zones in the PESB are established in the centre and near the boundaries of the PESB, as shown in Figure 2d. In addition, it is observed that the paved road that crosses the PESB has a major impact on the determination of the ecotourism areas because most of these areas are established next to it.

Many authors have reported the advantages of using GIS in environmental zoning (BOTEVA et al., 2004BOTEVA, D.; GRIFFITHS, G.; DIMOPOULOS, P. Evaluation and mapping of the conservation significance of habitats using GIS: an example from Crete, Greece. Journal for Nature Conservation, v.12, n.4, p.237-250, 2004.; GENELETTI; van DUREN, 2008GENELETTI, D.; van DUREN, I. Protected area zoning for conservation and use: A combination of spatial multicriteria and multiobjective evaluation. Landscape and Urban Planning, v.85, n.2, p.97-110, 2008.; HAJEHFOROOSHNIA et al., 2011HAJEHFOROOSHNIA, S.; SOFFIANIAN, A.; MAHINY, A.S.; FAKHERAN, S. Multi objective land allocation (MOLA) for zoning Ghamishloo Wildlife Sanctuary in Iran. Journal for Nature Conservation, v.19, n.4, p.254-262, 2011.; PILEHFOROOSHHA et al., 2014PILEHFOROOSHHA, P.; KARIMI, M.; TALEAI, M. A GIS-based agricultural land-use allocation model coupling increase and decrease in land demand. Agricultural Systems, v.130, p.116-125, 2014.). The automatic generation of each step of the process precludes subjectivity in the interpretation of the results because the development of zoning for a protected area demands that complex decisions be made. Furthermore, the factors and criteria may be modified and reformulated at any time, allowing for updates, greater freedom of repetition, and the verification of the analyses.

The identification of the conflict regions (Figure 2c) during the preparation of the zoning is important for a preliminary diagnostic of the areas that require further research and data, in addition to assisting park administrators in allocating a greater commitment to them. According to Los Monteros (2002)LOS MONTEROS, R.L.E. Evaluating ecotourism in natural protected areas of La Paz Bay, Baja California Sur, Mexico: ecotourism or nature-based tourism? Biodiversity and Conservation, v.11, p.1539-1550, 2002., the success of sustainable ecotourism in protected areas is only achieved if management programmes and strategies are well employed.

Difficulties are found in the PESB region in obtaining georeferenced data and information. Although it is a great challenge to map endangered species due to population dynamics and habitats, in this study, more consistent results would have been obtained if this mapping were available for the PESB.

Given the conformity of the conservation and ecotourism zoning results with the literature, this zoning is considered adequate for the proposed objective, easy to execute, and possible to replicate in other areas with conflicting uses. However, it is recommended that the results that were obtained with GIS be enhanced with the opinions of experts, researchers, managers, and other stakeholders.

5. CONCLUSION

This study illustrates the integration of MCE tools and the MOLA algorithm in the preparation of a zoning study of a protected area. The advantage that is demonstrated in this model is the feasibility of its implementation by managers in the planning of protected areas, due to its simplicity, and the fact that it can help them in applying precautionary measures and remediation for conflicting areas according to the park's objectives.

The obtained zoning is in accordance with the IUCN recommendation because the conservation area corresponds to approximately 77% of the park's area, reinforcing the suitability and applicability of the methodology that was used to zone the protected areas. However, we cannot guarantee that all of the target species and fragile ecosystems are under protection. Thus, enhancing this model is recommended to ensure that all of the CU's objectives are met, and therefore, the inclusion of habitat data is considered important for future models.

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Publication Dates

  • Publication in this collection
    Sep-Oct 2016

History

  • Received
    18 May 2015
  • Accepted
    30 May 2016
Sociedade de Investigações Florestais Universidade Federal de Viçosa, CEP: 36570-900 - Viçosa - Minas Gerais - Brazil, Tel: (55 31) 3612-3959 - Viçosa - MG - Brazil
E-mail: rarvore@sif.org.br