Alexander (1980)Alexander, E.B. 1980. Bulk densities of California soils in relation to other soil properties. Soil Science Society of America Journal 44: 689-692.
|
ρb = 1.66 – 0.308 (OC)1/2
|
0.46 |
721 |
ALEX |
Benites et al. (2007)Benites, V.M.; Machado, P.L.O.A.; Fidalgo, E.C.C.; Coelho, M.R.; Madari, B.E. 2007. Pedotransfer functions for estimating soil bulk density from existing soil survey reports in Brazil. Geoderma 139: 90-97.
|
ρb = 1.56 – 0.0005 (Clay*10) – 0.01 (OC*10) – 0.0075 SB |
0.66 |
1542 |
BEN-A |
Benites et al. (2007)Benites, V.M.; Machado, P.L.O.A.; Fidalgo, E.C.C.; Coelho, M.R.; Madari, B.E. 2007. Pedotransfer functions for estimating soil bulk density from existing soil survey reports in Brazil. Geoderma 139: 90-97.
|
ρb = 1.5688 – 0.0005 (Clay*10) – 0.009 (OC*10) |
0.42 |
1542 |
BEN-B |
Benites et al. (2007)Benites, V.M.; Machado, P.L.O.A.; Fidalgo, E.C.C.; Coelho, M.R.; Madari, B.E. 2007. Pedotransfer functions for estimating soil bulk density from existing soil survey reports in Brazil. Geoderma 139: 90-97.
|
ρb = 1.5224 – 0.0005 (Clay*10) |
0.63 |
1542 |
BEN-C |
Bernoux et al. (1998)Bernoux, M.; Arrouays, D.; Cerri, C.; Volkoff, B.; Jovilet, C. 1998. Bulk densities of Brazilian Amazon soils related to other soil properties. Soil Science Society of America Journal 62: 743-749.
|
ρb = 1.398 – 0.0047 Clay – 0.042 OC |
0.49 |
323 |
BERX |
Curtis and Post (1964)Curtis, R.O.; Post, B.W. 1964. Estimating bulk density from organic-matter content in some Vermont forest soils. Soil Science Society of America Journal 28: 285-286.
|
Log10(ρb*100) = 2.09963-0.00064log10(LOI) – 0.22302 log10(LOI)2
|
0.96 |
~144 |
C&P |
Federer (1983)Federer, C.A. 1983. Nitrogen mineralization and nitrification: depth variation in four New England forest soils. Soil Science Society of America Journal 47: 1008-1014.
|
ln(ρb) = −2.31 – 1.079 ln[(OM/100)] – 0.113 ln[(OM/100)]2
|
NI |
NI |
FED |
Grigal et al. (1989)Grigal, D.F.; Brovold, S.L.; Nord, W.S.; Ohmann, L.F. 1989. Bulk density of surface soils and peat in the north central United States. Canadian Journal of Soil Science 90: 895-900.
|
ρb = 0.075 + 1.301exp (-0.06 LOI) |
0.95 |
800 |
GRIG |
Harrison and Bocock (1981)Harrison, A.F.; Bocock, K.L. 1981. Estimation of soil bulk-density from loss-on-ignition values. Journal of Applied Ecology 18: 919-927.
|
ρb =1.558 – 0.728 log10(LOI) |
0.81 |
539 |
H&B-A |
Harrison and Bocock (1981)Harrison, A.F.; Bocock, K.L. 1981. Estimation of soil bulk-density from loss-on-ignition values. Journal of Applied Ecology 18: 919-927.
|
ρb =1.729 – 0.769 log10(LOI) |
0.58 |
538 |
H&B-B |
Han et al. (2012)Han, G.Z.; Zhang, G.L.; Gong, Z.T.; Wang, G.F. 2012. Pedotransfer functions for estimating soil bulk density in China. Soil Science 177: 158-164.
|
ln(ρb) = 0.5379 – 0.0653[(10 OM)]0.5
|
0.67 |
1560 |
HAN |
Hong et al. (2013)Hong, S.Y.; Minasny, B.; Han, K.H.; Kim, Y.; Lee, K. 2013. Predicting and mapping soil available water capacity in Korea. Peer Journal 1: e71.
|
ρb =1.02 – 0.156 ln(OM) |
0.45 |
642 |
HONG |
Huntington et al. (1989)Huntington, T.G.; Johnson, C.E.; Johnson, A.H.; Siccama, T.G.; Ryan, D.F. 1989. Carbon, organic matter, and bulk density relationships in a forested spodosol. Soil Science 148: 380-386.
|
ln ρb = −2.39 – 1.316 ln [(OM/100)] – 0.167 (ln [(OM/100)]2
|
0.75 |
60 |
HUNT-A |
Huntington et al. (1989)Huntington, T.G.; Johnson, C.E.; Johnson, A.H.; Siccama, T.G.; Ryan, D.F. 1989. Carbon, organic matter, and bulk density relationships in a forested spodosol. Soil Science 148: 380-386.
|
ln ρb = 0.263 – 0.147 ln OC – 0.103 (ln OC)2
|
0.72 |
60 |
HUNT-B |
Jeffrey (1970)Jeffrey, D.W. 1970. A note on the use of ignition loss as a means for the approximate estimation of soil bulk density. Journal of Ecology 58: 297-299.
|
ρb =1.482 – 0.6786 log10(LOI) |
0.82 |
80 |
JEF |
Kaur et al. (2002)Kaur, R.; Kumar, S.; Gurung, H. 2002. A pedo-transfer function (PTF) for estimating soil bulk density from basic soil data and its comparison with existing PTFs. Australian Journal of Soil Research 40: 847-857.
|
ln ρb = 0.313 – 0.191 OC + 0.02102 Clay – 0.000476 (Clay)2 – 0.00432 Silt |
0.62 |
224 |
KAUR |
Leonavičiute (2000)Leonavičiute, N. 2000. Predicting soil bulk and particle densities by pedotransfer functions from existing soil data in Lithuania. Geografijos metraštis 33: 7-330.
|
ρb =1.70398 – 0.00313 Silt + 0.00261 Clay – 0.11245 OC |
NI |
135 |
LEO-A |
Leonavičiute (2000)Leonavičiute, N. 2000. Predicting soil bulk and particle densities by pedotransfer functions from existing soil data in Lithuania. Geografijos metraštis 33: 7-330.
|
ρb = 1.07256 + 0.032732 ln(Silt) + 0.038753ln(Clay) + 0.078886 ln(Sand) – 0.054309 ln(OC) |
NI |
858 |
LEO-B |
Manrique and Jones (1991)Manrique, L.A.; Jones, C.A. 1991. Bulk density of soils in relation to soil physical and chemical properties. Soil Science Society of America Journal 55: 476-481.
|
ρb = 1.66 – 0.318 (OC)1/2
|
0.41 |
19651 |
M&J-A |
Manrique and Jones (1991)Manrique, L.A.; Jones, C.A. 1991. Bulk density of soils in relation to soil physical and chemical properties. Soil Science Society of America Journal 55: 476-481.
|
ρb = 1.51 – 0.113 OC |
0.36 |
19651 |
M&J-B |
Perie and Ouim (2008)Périé, C.; Ouimet, R. 2008. Organic carbon, organic matter and bulk density relationships in boreal forest soils. Canadian Journal of Soil Science 88: 315-325.
|
ρb = 1.977 + 4.105(OM/100) – 1.229ln[(OM/100)] – 0.103 ln[(OM/100)]2
|
0.82 |
125 |
P&O |
Prévost (2004)Prévost, M. 2004. Predicting soil properties from organic matter content following mechanical site preparation of forest soils. Soil Science Society of America Journal 68: 943-949.
|
ln(ρb) = −1.81 – 0.892*ln[(OM/100)] – 0.092 ln[(OM/100)]2
|
0.77 |
414 |
PREV |
Ruehlmann and Körschens (2009)Ruehlmann, J.; Körschens, M. 2009. Calculating the effect of soil organic matter concentration on soil bulk density. Soil Science Society of America Journal 73: 876-885.
|
ρb = (2.684 - (140.943b)) exp(-bOC) |
0.98 |
609 |
R&K |
Tomasella and Hodnett (1998)Tomasella, J.; Hodnett, M.G. 1998. Estimating soil water retention characteristics from limited data in Brazilian Amazonia. Soil Science 163: 190-202.
|
ρb = 1.578 – 0.054 OC – 0.006 Silt – 0.004 Clay |
0.59 |
613 |
T&H |
Tamminen and Starr (1994)Tamminen, P.; Starr, M. 1994. Bulk density of forested mineral soils. Silva Fennica 28: 53-60.
|
ρb = 1.565 – 0.2298(LOI)0.5
|
0.61 |
158 |
T&S |