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南县位于河南省东北部,属黄土冲积平原,整个地表有1000m 厚的黄土覆盖,质地疏松,地形平坦,地处半润湿的暖温带,面积604km~2,耕地3.93万 hm~2,人口43.2万人,是典型的农业县。多年平均降雨量589.5mm,水资源总量1.26亿m~3,人均占有量291.5m~3,公顷占有量3209.4m~3,占全国人均2200m~3的13.3%,公顷占有量2.83万 m~3的11.33%;占全省人均460m~3的63.4%,公顷占有量6015m~3的53.4%,属严重
Nanxian County is located in the northeastern Henan Province and belongs to the loess alluvial plain. The entire surface is covered with loess with a thickness of 1000m. The plain has a loose terrain and a semi-humid warm temperate zone with an area of 604km ~ 2 and a cultivated land of 39300m2. The population 432,000 people, is a typical agricultural county. The annual average rainfall is 589.5mm, the total amount of water resources is 126 million m ~ 3, the per capita amount is 291.5m ~ 3, the hectare occupies 3209.4m ~ 3, accounting for 13.3% of the national average of 2200m ~ 3, the hectare occupies 28,300m ~ 3 of 11.33%; accounting for 63.4% of the province’s 460m 3 per capita, accounting for 53.4% of 6015m 3,