The Relationship of Federal Soil Erosion Control Laws for Croplands in the United States to Sustained Forest Production
1997
Siegel, W.C.
Soil erosion is the most significant form of agricultural water pollution. Approximately a quarter of croplands in the United States is classified as highly erodible. The Conservation Reserve Program will take 45 million acres of the most erodible and fragile cropland - about 10 percent of the total - out of production. Tree planting has made a substantial contribution to the timber growing stock - particularly in the southern United States.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل International Union of Forest Research Organizations