284
Ingrid e. Burke
How Has Cropland Management Altered Regional Soil C Storage?
Classic field observationl
Many experiments on
cultivation effects
experimentation
(site-level)
Model validation
against eddy accumulation
data
Development of
Simulation Models
CENTURY
Simulation of
regional processes
Simulation of
historical effects
of cultivation
Geographic data
)
+
Soli C ~"tt.
CII
te
regional model
Te::::re
validation, with independent
data sets such as remote
Geographic pattern
sensing
MAT, and Texture
analysis
FIGURE 18.1. The relationship among the scientific activities involved in assessing the effects of cropland management on regional C storage in the Great Plains of the United States (e.g., Parton et al. 1987; Sala et al. 1988; Cole
et al. 1988; Burke et al. 1989, 1990; and many others).
vides a strong impetus for future work in landscapeto regional-scale ecosystem ecology.
Acknowledgments I wish to acknowledge the contributions of W. K. Lauemoth, H. Epstein, and P.
Groffman to this manuscript, and the long-term
contributions of W.A. Reiners to the ideas and review presented here. This work was supported by
the National Science Foundation Shortgrass Steppe
Long Term Ecological Research Project, the Environmental Protection Agency STAR program, and
by the Great Plains Project (grant HD 33554 from
the National Institute of Child Health and Human
Development).
References
Aandahl, A.R. The characterization of slope positions
and their influence on total nitrogen content of a few
virgin soils of western Iowa. Soil Sci. Soc. Am. Proc.
13:449-54; 1948.
Aberg, G. The use of natural strontium isotopes as tracers
in environmental studies. Water Air Soil Pollut.
79:309-322; 1995.
Aguilar, R.E.; Kelly, E; Heil, R.D. Effects of cultivation
on soils in Northern Great Plains rangeland. Soil Sci.
Soc. Am. 1. 52:1081-1085; 1988.
Amundson, R.; Jenny, H. Thinking of biology-On a
state factor model of ecosystems. BioScience 47:536543; 1997.
Bonnann, R.H.; Likens, G.E.; Siccama, T.G.; Pierce
R.S.; Eaton, J.S. The export of nutrients and recovery
of stable conditions following deforestation at Hubbard Brook. Ecol. Monogr. 44:255-277; 1974.
Burke, I.C. Control of nitrogen mineralization in a sagebrush steppe landscape. Ecology 70:1115-1126;
1989.
Burke, I.e.; Kittel, T.G.E; Lauenroth, w.K.; Snook, P.;
Yonker, C.M.; Parton, W.J. Regional analysis of the
Ingrid e. Burke
How Has Cropland Management Altered Regional Soil C Storage?
Classic field observationl
Many experiments on
cultivation effects
experimentation
(site-level)
Model validation
against eddy accumulation
data
Development of
Simulation Models
CENTURY
Simulation of
regional processes
Simulation of
historical effects
of cultivation
Geographic data
)
+
Soli C ~"tt.
CII
te
regional model
Te::::re
validation, with independent
data sets such as remote
Geographic pattern
sensing
MAT, and Texture
analysis
FIGURE 18.1. The relationship among the scientific activities involved in assessing the effects of cropland management on regional C storage in the Great Plains of the United States (e.g., Parton et al. 1987; Sala et al. 1988; Cole
et al. 1988; Burke et al. 1989, 1990; and many others).
vides a strong impetus for future work in landscapeto regional-scale ecosystem ecology.
Acknowledgments I wish to acknowledge the contributions of W. K. Lauemoth, H. Epstein, and P.
Groffman to this manuscript, and the long-term
contributions of W.A. Reiners to the ideas and review presented here. This work was supported by
the National Science Foundation Shortgrass Steppe
Long Term Ecological Research Project, the Environmental Protection Agency STAR program, and
by the Great Plains Project (grant HD 33554 from
the National Institute of Child Health and Human
Development).
References
Aandahl, A.R. The characterization of slope positions
and their influence on total nitrogen content of a few
virgin soils of western Iowa. Soil Sci. Soc. Am. Proc.
13:449-54; 1948.
Aberg, G. The use of natural strontium isotopes as tracers
in environmental studies. Water Air Soil Pollut.
79:309-322; 1995.
Aguilar, R.E.; Kelly, E; Heil, R.D. Effects of cultivation
on soils in Northern Great Plains rangeland. Soil Sci.
Soc. Am. 1. 52:1081-1085; 1988.
Amundson, R.; Jenny, H. Thinking of biology-On a
state factor model of ecosystems. BioScience 47:536543; 1997.
Bonnann, R.H.; Likens, G.E.; Siccama, T.G.; Pierce
R.S.; Eaton, J.S. The export of nutrients and recovery
of stable conditions following deforestation at Hubbard Brook. Ecol. Monogr. 44:255-277; 1974.
Burke, I.C. Control of nitrogen mineralization in a sagebrush steppe landscape. Ecology 70:1115-1126;
1989.
Burke, I.e.; Kittel, T.G.E; Lauenroth, w.K.; Snook, P.;
Yonker, C.M.; Parton, W.J. Regional analysis of the