山东农业科学2012，Vol.44Issue(4)：130-132,3.
近20年咸宁市耕地利用效益变化分析
Variation Analysis on Use Benefit of Cultivated Lands in Xianning City of Hubei Province from 1990 to 2010
摘要
Abstract
The use benefit of cultivated lands from 1990 to 2010 in Xianning City of Hubei Province was evaluated by principal component analysis method through constructing the indicator system. The results indicated that the value of cultivated land use benefit had been rising during the recent 20 years. The increase . of economic and social benefits was mainly due to the advancement of science and technology, and the decrease of ecological benefit was mainly because of excess use of chemical fertilizers, pesticides and the increase of energy consumption. So the investment of agricultural science and technology should be increased, the agricultural ecology should be protect, the application of pesticides and fertilizers should be decreased, and the construction of irrigation infrastructure should be strengthened.关键词
耕地利用效益/主成分分析法/咸宁市Key words
Use benefit of cultivated land/ Principal component analysis method/Xianning city分类
管理科学引用本文复制引用
何国松,黄莉敏,金赉,李雪原..近20年咸宁市耕地利用效益变化分析[J].山东农业科学,2012,44(4):130-132,3.基金项目
国家自然科学基金项目(41071069),湖北省教育厅人文杜科重点项目(2010d088、2011jyte146) （41071069）
