Indicators of the condition and sustainability of agricultural lands in five Mid-Atlantic states were measured in 1994. Indicators were selected to reflect crop productivity and land stewardship on annually harvested herbaceous crop (AHHC) land, which covers almost 10% of the land area in this region. Overall, condition of agricultural lands in the region is good. Crops generally yielded more than those grown in the 1980s, with a mean observed/expected yield index greater than 1. The mean soil quality index was slightly better than a "moderate" rating for crop growth. Almost 2/3 of the AHHC land is covered by crop rotation plans, with the remaining land mostly in hay fields. Insecticides were applied to less than 20% of AHHC land, and less than 20% of the land where pesticides were applied has high to moderately high potential for pesticides leaching into groundwater. However, integrated pest management (IPM) is practiced on less than 20% of AHHC land. Hay showed more efficient use of nitrogen than seed crops, and non-tilled sites, which are mostly hay, had more microbial biomass (suggesting more nutrient cycling) than tilled sites. This information could provide a baseline for a long-term monitoring program for agroecosystems in the region.
机构:
Penn State Univ, Dept Agr Econ & Rural Sociol, University Pk, PA 16802 USAPenn State Univ, Dept Agr Econ & Rural Sociol, University Pk, PA 16802 USA
机构:
Virginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
Canadian Wildlife Federat, 350 Michael Cowpland Dr, Ottawa, ON K2M 2G4, CanadaVirginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
Lapointe, Nicolas W. R.
Fuller, Pam L.
论文数: 0引用数: 0
h-index: 0
机构:
US Geol Survey, Wetland & Aquat Res Ctr, Gainesville, FL USAVirginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
Fuller, Pam L.
Neilson, Matthew
论文数: 0引用数: 0
h-index: 0
机构:
US Geol Survey, Wetland & Aquat Res Ctr, Gainesville, FL USAVirginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
Neilson, Matthew
Murphy, Brian R.
论文数: 0引用数: 0
h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
Murphy, Brian R.
Angermeier, Paul L.
论文数: 0引用数: 0
h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
Virginia Polytech Inst & State Univ, US Geol Survey, Virginia Cooperat Fish & Wildlife Res Unit, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA