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通过坡耕地专项调查,查清了河南省坡耕地总面积、坡度组成情况、分布情况及治理现状。河南省5°—15°坡耕地占坡耕地总面积的70.7%,50 hm2以上集中连片面积占36.47%,主要分布在黄河、淮河两大流域。坡耕地占全省总耕地面积的23.8%,但粮食产量仅占总产量的10.11%;河南省15°以下的坡耕地面积较大,是将来坡耕地综合治理和挖掘粮食生产潜力的重点区域。结合坡耕地现状调查,提出了分区治理对策。
Through the special investigation of sloping farmland, we can find out the composition, distribution and treatment status of sloping farmland in Henan Province. Henan 5 ° -15 ° sloping farmland accounts for 70.7% of the total area of sloping farmland, and the contiguous contiguous area above 50 hm2 accounts for 36.47%, mainly distributed in the Yellow River and Huaihe River basins. Slope cultivated land accounts for 23.8% of the total cultivated land in the province, but the grain output only accounts for 10.11% of the total output. In sloping cultivated land below 15 ° in Henan Province, the sloping cultivated land is large, which is the key area for future comprehensive control of the sloping farmland and excavating the potential of grain production. Combined with the status quo investigation of sloping arable land, we put forward the countermeasures of zoning control.