Impact of Soil Conservation Policies on Carbon Sequestration in Agricultural Soils of the Central United States (The)
利用1992年国家资源清单和土壤气候数据，通过生物物理模型评估保护政策对农业土壤有机碳的影响，发现减少土壤侵蚀比退耕更能有效增加碳封存和改善土壤质量。
To evaluate the impact of conservation policies on soil organic carbon in agricultural soils, the authors link information from the 1992 National Resources Inventory (NRI) database and the extensive physical data on soils and climate from the SOILS5 database. These data serve as input for a biophysical process model calibrated for the conditions prevalent in the study region. Results indicate that reducing soil erosion, rather than removing land from agricultural production, is the most effective way to increase carbon sequestration and enhance soil quality.