Soil Degradation in the United States: Extent, Severity, and TrendsCRC Press, 25 sept. 2003 - 224 pagini Soil Degradation in the United States: Extent, Severity, and Trends examines the magnitude and severity of soil degradation by different processes in the U.S., including water erosion, wind erosion, C depletion, soil compaction, salt build-up, and soil contamination. In addition, it addresses policy issues with regard to economic and environmental |
Alte ediții - Afișează-le pe toate
Soil Degradation in the United States: Extent, Severity, and Trends Rattan Lal,Thomas Iivari,John M. Kimble Previzualizare limitată - 2003 |
Soil Degradation in the United States: Extent, Severity, and Trends Rattan Lal,Thomas Iivari,John M. Kimble Nu există previzualizare disponibilă - 2020 |
Soil Degradation in the United States: Extent, Severity, and Trends Rattan Lal,Thomas Iivari,John M. Kimble Nu există previzualizare disponibilă - 2003 |
Termeni și expresii frecvente
15-year period 1992 Assessment Affected by Water Affected by Wind Agriculture billion Mg biomass Boca Raton cropland decreased crops CRP land cultivated 1982 cultivated cropland cultivated land data in Table degradation process desertification Dregne ecosystems erosion on CRP Erosion on Private erosion on total Erosion on U.S. forestland Global Greenhouse Effect HEL and NHEL HEL cropland Histosols hydric soils irrigated land area affected land degradation magnitude of erosion Magnitude of Sheet magnitude of soil Mg/ha/yr Mg/yr Mha/yr Minor land Moderate Severe Extreme National Resources Inventory noncultivated 1982 noncultivated cropland nongrazed nonirrigated nonprime cropland nonprime cultivated NRCS Plate Prime cultivated Private U.S. Land Program rangeland rate of erosion rate of soil Rill Erosion Severe Extreme Total Sheet and Rill soil degradation soil disturbance soil erosion soil quality soil salinity Total Area Mha trends U.S. Cropland UNEP USDA vegetation cover Washington water and wind water erosion wetlands wind erosion