基于地力评价的耕地利用类型分区研究r——以沁阳市为例
郑红晓;张红方
【期刊名称】《中国农业资源与区划》 【年(卷),期】2015(036)005
【摘要】For quantitative evaluation of cultivated land productivity scientifically,to understand the spatial distri-bution pattern,is to realize the differential protection of arable land and the elaborating management important guar-antee. In this paper,taking land plots for the evaluation unit,the application of the analytic hierarchy process,fuzzy
mathematics
method
and
comprehensive
index
method,the city of Qinyang farmland were quantitatively evaluated, analyzed the characteristics and regularity of regional spatial distribution of cultivated land fertility. According to the soil fertility evaluation
results,combined
with
the
practical
situation
of
Qinyang,delineated the specific type of culti-vated land use zoning. The results show that:Qinyang one or two,three level of cultivated land fertility accounted for the total cultivated area ratio and 76. 7%,and soil fertility low four,five etc. together accounted for 23. 3%of culti-vated land fertility,that is in the middle and upper level in the whole,but there are still in low yielding fields need to carry out soil fertility cultivation. The cultivated land fertility higher level,two level is mainly distributed in the southern city of Qinyang,while the lower level Four and level five is
基于地力评价的耕地利用类型分区研究r——以沁阳市为例
