Rusle parameters for modeling the loss of a soil subjected to pig slurry application

The objective of this work was to determine adjustment parameters for the revised universal soil loss equation (Rusle) of a soil subjected to pig slurry application. Treatments consisted of 0, 50, 100, and 200 m³ ha^-1 pig slurry (PS), after the cultivation of black oat (Avena strigosa), besides the application of 50 m³ ha^-1 PS for six times onto the soil surface in a temporal sequence, and a control treatment of soil without cultivation and without pig slurry application. The evaluations were performed for black oat shoot dry mass, root mass and crop residues semi-incorporated into the soil (RMR), soil losses by means of simulated rain, and the parameters for water erosion modeling. The pig slurry application onto soil surface caused a reduction in the values of the soil consolidation parameter (C_f), an increase in the mass of living and dead roots and cultural residues incorporated in the upper layer (0.0-0.1 m) of the soil (B_u), and a reduction in the subfactor prior land use (PLU) of the Rusle.

Index terms:
Avena strigosa; cultural residue factor; mathematical model; simulated rain; soil consolidation factor; water erosion

Authorship

Maria Aparecida do Nascimento dos Santos

Universidade do Estado de Santa Catarina, Centro de Ciências Agroveterinárias, Avenida Luiz de Camões, no 2.090, Conta Dinheiro, CEP 88520-000 Lages, SC, Brazil. E-mail: mariaagronomia@gmail.com, ildegardis.bertol@udesc.br, danielischneiders@gmail.com, barbarabagio@yahoo.com.brUniversidade do Estado de Santa CatarinaBrazilLages, SC, BrazilUniversidade do Estado de Santa Catarina, Centro de Ciências Agroveterinárias, Avenida Luiz de Camões, no 2.090, Conta Dinheiro, CEP 88520-000 Lages, SC, Brazil. E-mail: mariaagronomia@gmail.com, ildegardis.bertol@udesc.br, danielischneiders@gmail.com, barbarabagio@yahoo.com.br

Ildegardis Bertol

Danieli Schneiders Kaufmann

José Mecabô Júnior

Instituto Federal de Santa Catarina, Campus Lages, Rua Heitor Villa Lobos, no 222, São Francisco, CEP 88506-400 Lages, SC, Brazil. E-mail: josemecabo@yahoo.com.brInstituto Federal de Santa CatarinaBrazilLages, SC, BrazilInstituto Federal de Santa Catarina, Campus Lages, Rua Heitor Villa Lobos, no 222, São Francisco, CEP 88506-400 Lages, SC, Brazil. E-mail: josemecabo@yahoo.com.br

Bárbara Bagio

SCIMAGO INSTITUTIONS RANKINGS

Figures | Tables

Figures (5)
Tables (1)

Thumbnail

Figure 1.
The area ratio of dry mass of residues (DM), root mass and residuals incorporated in the 0-0.1 m soil depth (RMR), and the incorporated root mass and residues (B_u) over time (t) for black oat (Avena strigosa), in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; and CD0, with crop and without PS treatments.

Thumbnail

Figure 2.
The ratio of soil loss (SL) over time, in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; CD0, with crop and without PS; WCD50, without crop and with 50 m³ ha^-1 PS; and WCD0, without crop and without PS treatments.

Thumbnail

Figure 3.
The ratio between consolidation factor (C_f) and time (t), in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; CD0, with crop and without PS; WCD50, without crop and with 50 m³ ha^-1 PS; and WCD0, without crop and without PS treatments.

Thumbnail

Figure 4.
The ratio between C_f (y) and B_u (x) variables, in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: (a) CD200, with crop and 200 m³ ha^-1 PS; (b) CD100, with crop and 100 m³ ha^-1 PS; (c) CD50, with crop and 50 m³ ha^-1 PS; and (d) CD0, with crop and without PS treatments.

Thumbnail

Figure 5.
The ratio between the subfactor PLU of the RUSLE and time, in an Inceptisol subjected to pig slurry (PS) and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; and CD0, with crop and without PS treatments.

Thumbnail

Table 1.
Inceptisol soil properties after the application of pig slurry (PS) treatments.

Figure 1. The area ratio of dry mass of residues (DM), root mass and residuals incorporated in the 0-0.1 m soil depth (RMR), and the incorporated root mass and residues (B_u) over time (t) for black oat (Avena strigosa), in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; and CD0, with crop and without PS treatments.

Figure 2. The ratio of soil loss (SL) over time, in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; CD0, with crop and without PS; WCD50, without crop and with 50 m³ ha^-1 PS; and WCD0, without crop and without PS treatments.

Figure 3. The ratio between consolidation factor (C_f) and time (t), in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; CD0, with crop and without PS; WCD50, without crop and with 50 m³ ha^-1 PS; and WCD0, without crop and without PS treatments.

Figure 4. The ratio between C_f (y) and B_u (x) variables, in an Inceptisol subjected to pig slurry (PS) application and simulated rainfall, in the following treatments: (a) CD200, with crop and 200 m³ ha^-1 PS; (b) CD100, with crop and 100 m³ ha^-1 PS; (c) CD50, with crop and 50 m³ ha^-1 PS; and (d) CD0, with crop and without PS treatments.

Figure 5. The ratio between the subfactor PLU of the RUSLE and time, in an Inceptisol subjected to pig slurry (PS) and simulated rainfall, in the following treatments: CD200, with crop and 200 m³ ha^-1 PS; CD100, with crop and 100 m³ ha^-1 PS; CD50, with crop and 50 m³ ha^-1 PS; and CD0, with crop and without PS treatments.

Table 1. Inceptisol soil properties after the application of pig slurry (PS) treatments.

Layer (cm)	Soil properties
	pH water	P (mg dm^-3)	Ca	Mg	Al	H+Al	K	CEC	WAD (mm)	TP (%)	BD (g cm^-3)
	pH water	P (mg dm^-3)	--------------------------------- (cmol_c dm^-3) ---------------------------------						WAD (mm)	TP (%)	BD (g cm^-3)
	CD200, with crop and 200 m³ ha^-1 PS
0-2.5	5.3	24.5	9.4	1.6	1.0	6.8	0.5	18.3	5.5	69	1.13
2.5-5	5.4	13.1	12.0	0.9	1.0	6.5	0.3	19.7	5.7	63	1.15
5-10	5.1	9.2	8.7	3.2	0.9	6.3	0.2	18.3	5.6	57	1.19
10-20	5.0	11.9	7.2	1.9	1.5	9.2	0.3	18.5	5.5	59	1.18
	CD100, with crop and 100 m³ ha^-1 PS
0-2.5	5.5	13.4	9.3	0.9	0.7	5.8	0.4	16.4	6.0	62	1.38
2.5-5	5.3	6.9	9.4	1.7	0.7	6.6	0.2	17.9	6.1	63	1.23
5-10	5.2	7.8	7.9	2.0	1.4	9.6	0.2	19.7	6.1	55	1.15
10-20	5.1	4.6	6.8	0.9	1.6	10.0	0.3	18.0	6.0	57	1.21
	CD50, with crop and 50 m³ ha^-1 PS
0-2.5	5.9	6.2	8.9	1.5	0.0	3.5	0.5	14.3	6.2	61	1.25
2.5-5	5.6	5.1	8.5	3.7	0.3	4.8	0.3	17.3	6.4	63	1.14
5-10	5.8	8.2	8.3	1.6	0.5	6.1	0.3	16.3	6.3	58	1.14
10-20	5.7	7.3	7.6	1.9	0.8	7.2	0.3	17.0	6.5	61	1.11
	CD0, with crop, without PS
0-2.5	5.5	5.3	10.3	1.9	0.3	5.3	0.4	17.8	6.6	59	1.25
2.5-5	5.7	4.9	10.5	2.6	0.1	5.3	0.2	18.6	6.4	60	1.28
5-10	5.8	3.5	10.5	3.0	0.1	4.6	0.2	18.2	6.5	56	1.21
10-20	5.5	6.1	8.6	1.5	0.7	6.1	0.3	16.5	6.6	55	1.22
	WCD50, without crop, with 50 m³ ha^-1 PS
0-2.5	5.6	4.5	10.7	1.1	0.1	4.0	0.4	16.2	4.8	65	1.09
2.5-5	5.7	5.2	9.7	2.0	0.1	5.6	0.5	17.8	6.2	60	1.31
5-10	5.6	11.2	9.8	1.5	0.1	4.5	0.5	16.2	6.1	57	1.38
10-20	5.4	12.6	8.7	2.8	0.5	6.5	0.5	18.5	6.2	55	1.41
	WCD0, without crop, without PS
0-2.5	4.9	3.9	6.6	1.5	2.7	13.0	0.3	21.3	6.5	63	1.24
2.5-5	4.9	4.1	6.9	4.6	2.5	12.3	0.2	24.0	7.0	60	1.22
5-10	5.2	3.6	6.7	2.7	2.5	11.6	0.2	21.1	6.9	55	1.24
10-20	5.2	6.2	8.9	2.9	1.3	8.3	0.5	20.5	7.3	55	1.28

CEC, cation exchange capacity, at pH 7.0; pH in water (2:1); and P, Mehlich. TP, total porosity; BD, soil bulk density.

How to cite

copy

Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira Caixa Postal 040315, 70770-901 Brasília DF Brazil, Tel. +55 61 3448-1813, Fax +55 61 3340-5483 - Brasília - DF - Brazil
E-mail: pab@embrapa.br

Acompanhe os números deste periódico no seu leitor de RSS

Versão para download de PDF

PDF

Inglês

Versões e tradução automática

Versão original do texto

English

Tradução automática

Google Translator
Microsoft Translator

Como citar

RIS

BIBTEX

Outros formatos de citação e exportação:

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
E-mail: scielo@scielo.org

Leia a Declaração de Acesso Aberto

Métricas

Rusle parameters for modeling the loss of a soil subjected to pig slurry application

PlumX

Mensagem

[TFN1] CEC, cation exchange capacity, at pH 7.0; pH in water (2:1); and P, Mehlich. TP, total porosity; BD, soil bulk density.