论文部分内容阅读
一、水资源概况鹿邑县地处豫东平原,属淮河流域,黄河冲积平原的一部分,共辖21个乡(镇),518个行政村,118万人,其中农业人口93万人,是河南省水资源贫乏县之一。多年平均降雨量749.4mm,年际间分配不均匀,6～8月份降雨量占全年降雨量的70%左右,时空分布也不均匀。鹿邑县现有30km~2以上的沟河27条,水域面积0.64万hm~2,多年平均自产地表水1.81亿m~3,过境水4.9亿m~3,可开采量为1.06亿m~3,人均水资源占有量为455m~3,仅为全国人均水资源占有量的1/5左右。
I. Introduction to Water Resources Luyi County is located in the eastern part of the plain of Yudong. It belongs to the Huaihe River Basin and part of the Yellow River alluvial plain. It manages 21 townships (towns) and 518 administrative villages with a population of 1.18 million, of which agricultural population is 930,000 Henan Province, one of the poor water resources counties. The average annual rainfall is 749.4mm, which is unevenly distributed from year to year. From June to August, the rainfall accounts for about 70% of annual rainfall, and the distribution of time and space is also uneven. Luyi County currently has 27 gullys of over 30 km2 with a water area of 6400 hm2, an average of 181 million m ~ 3 of surface water for many years of self-production, 490 million m ~ 3 of transit water and an exploitable capacity of 106 million m ~ 3, the per capita water resources occupy 455m ~ 3, only about 1/5 of the national per capita water resources.