水土保持学报2012，Vol.26Issue(3)：12-17,6.
安徽省园地氮磷径流流失
Nitrogen and Phosphorus Runoff from Garden Plots in Anhui Province
摘要
Abstract
The distribution area of tea garden,mulberry field and grapery are broader in Anhui province.High fertilizer application with a low efficiency in garden plots resulted in nitrogen and phosphorus loss into the water through surface runoff,which caused a serious threat for water pollution.Therefore,to research the characteristic of N and P runoff loss from garden plots has important significance to control agricultural non-point source pollution.In this study,three representative garden plots were selected in Anhui province,to monitor and measure quantitatively the N and P runoff losses under the condition of conventional fertilization by building runoff ponds in farmland.The results showed that the annual runoff loss of total nitrogen was 1.85~13.70 kg/hm2 in garden plots under the condition of conventional fertilization,including which was 2.127,8.380,7.940 kg/hm2 in tea garden,mulberry field and grapery,respectively.The annual runoff loss of total phosphorus was 0.202~1.770 kg/hm2,including which was 0.261,0.263,1.148 kg/hm2 in tea garden,mulberry field and grapery,respectively.The runoff loss percentage of nitrogen fertilizer was between 0.049% and 0.453% and phosphorus fertilizer was between 0.046% and 0.416%.Meanwhile,about 58% of nitrogen was present in the form of nitrate nitrogen and ammonium nitrogen,which were the main forms of nitrogen runoff loss from garden plots.Phosphorus runoff loss was mainly in the form of soluble phosphate in most garden plots,but only about 29.77% phosphorus runoff loss in the form of soluble phosphate in mulberry field.关键词
安徽省/园地/氮磷流失/降雨径流Key words
Anhui province/garden plot/nitrogen and phosphorus runoff/rainfall runoff分类
农业科技引用本文复制引用
马友华,谢昕云,马中文,王桂苓,孙兴旺,胡善宝,石润圭,黄文星,朱海燕,朱贤东,王泰成..安徽省园地氮磷径流流失[J].水土保持学报,2012,26(3):12-17,6.基金项目
公益性行业（农业）科研专项 （）
第一次全国污染源普查重大专项 （）
