2002
DOI: 10.1016/s0269-7491(01)00222-6
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Spatial heterogeneity of aggregate stability and soil carbon in semi-arid rangeland

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Cited by 160 publications
(108 citation statements)
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References 29 publications
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“…Thus, results support previous research finding that woody encroachment in drylands can result in a major change in ecosystem structure [Bai et al, 2009;Bird et al, 2002;Havstad et al, 2006;Schlesinger et al, 1990], characterized by an increased heterogeneity of vegetation and SOC distribution [Puttock et al, 2013]. Reduction in vegetation cover following woody encroachment decreases vegetative protection of the soil [Ludwig et al, 2005] and increases connectivity [Mayor et al, 2008;Wainwright et al, 2011], leading to accentuated water erosion fluxes [Parsons et al, 1996;Wilcox et al, 2003a].…”
Section: Change In Soil C Dynamics Over Vegetation Transitionssupporting
confidence: 88%
“…Thus, results support previous research finding that woody encroachment in drylands can result in a major change in ecosystem structure [Bai et al, 2009;Bird et al, 2002;Havstad et al, 2006;Schlesinger et al, 1990], characterized by an increased heterogeneity of vegetation and SOC distribution [Puttock et al, 2013]. Reduction in vegetation cover following woody encroachment decreases vegetative protection of the soil [Ludwig et al, 2005] and increases connectivity [Mayor et al, 2008;Wainwright et al, 2011], leading to accentuated water erosion fluxes [Parsons et al, 1996;Wilcox et al, 2003a].…”
Section: Change In Soil C Dynamics Over Vegetation Transitionssupporting
confidence: 88%
“…Shinjo et al (2000) encontraram relação entre posição da paisagem e variabilidade espacial de estabilidade de agregados, informando que, em áreas mais planas, a estabilidade de agregados apresentou um comportamento mais definido que em áreas mais declivosas. Bird et al (2002) …”
Section: Resultsunclassified
“…SOC stocks display a high spatial variability (coefficient of variation of 50%; Cannell et al, 1999) in grassland as compared to arable land, which limits the accuracy of direct determinations of C stock changes. The variability in SOC contents is increased by sampling to different depths (Robles and Burke, 1998;Chevallier et al, 2000;Bird et al, 2002) and in pastures by excretal returns concentrated in patches.…”
Section: Grassland Carbon Sequestrationmentioning
confidence: 99%