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 |
Cuprins
Water and Wind Erosion | 51 |
Other Forms of Degradation | 147 |
Policy and Conservation Programs | 181 |
Appendices | 193 |
| 199 | |
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 activities Affected by Water affected by wind Agriculture Area Mha Assessment billion Mg carbon causes Chapter comprises Conservation conversion cover cropland area crops CRP land cultivated cropland cultivated land data in Table decline decreased desertification disturbance drastic ecosystems environment environmental Equation erodible estimates extent Extreme factor Figure forestland Global grazing grazing land HEL cropland impact important increase irrigated land area affected lead Light loss magnitude Mg/ha/yr Mha/yr Michigan mining Moderate needs NHEL noncultivated nongrazed nonprime cropland NRCS occurred pastureland Plate policies prime cropland Private problem processes productivity Program range rangeland rate of erosion reduction regions Resources restore rill erosion risks salinization severe Severity Classes sheet and rill shown in Table Similar soil degradation soil erosion soil quality Source surface Total Area total cropland Total erosion trends types United Washington water erosion wetlands wind erosion