陕西省武功县耕地地力评价研究

基于GIS技术和武功县耕地第二次土壤普查资料以及"测土配方施肥"采样调查分析结果,利用县域耕地资源管理信息系统,对陕西省武功县耕地地力进行了定量评价分级。结果表明,武功县总耕地面积为32 923.77hm2,占总土地面积的83.74%;其中1级地4 869.23hm2,占耕地面积的14.79%;2级地11 969.56hm2,占耕地面积的36.36%;3级地9 338.52hm2,占耕地面积的28.36%;4级地4 700.82hm2,占耕地面积的14.28%;5级地1 725.81hm2,占耕地面积的5.24%;6级地319.82hm2,占耕地面积的0.97%。并根据评价结果,对各等级耕地提出了利用建议。

Evaluating Productivity of Farmlands in Wugong County,Shaanxi Province

The productivity of farmlands in Wugong County was assessed and classified based on "county arable land management information system",information collected in the second national soil survey,and analysis results from the balanced fertilization on soil testing.The results show that the total cultivated area of Wugong County is 32 923.77 hm²,accounting for 83.74% of the total land area.The areas of the 1st,2nd,3rd,4th,5th and 6th grade cultivated land were 4 869.23,11 969.56,9 338.52,4 700.82,1 725.81 and 319.82 hm²,respectively;which constitute of 14.7%,36.36%,28.36%,14.28%,5.24% and 0.97% of the total area of the cultivated land,respectively.Based on evaluation results,recommendations were proposed specifically for arable lands with various grades.