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1 井灌区灌溉现况灵宝市位于豫西边陲,豫、陕、晋三省交界,地处黄土高原的东延部分,南依秦岭,北濒黄河,境内山岭起伏,沟壑纵横,大体是“七山二塬一分川”。全市多年平均降雨量为619.5mm,最低年仅324.5mm,且时空分布极不均匀,全市水资源总量5.9亿m~3,人均占有量为830m~3,每公顷占有量为9000m~3,仅相当于全国平均水平的1/3。干旱缺水已成为制约我市经济发展的
1 Well Irrigation Irrigation Status Lingbao City is located in the western border of Henan Province, Henan, Shaanxi and Shanxi provinces at the junction, is located in the eastern part of the extension of the Loess Plateau, according to the Qinling Mountains to the south, the Yellow River to the north, the territory of mountain ups and downs, gully aspect, in general is One of the second plateau Sichuan ". The city’s average annual rainfall of 619.5mm, the lowest year only 324.5mm, and very uneven distribution of time and space, the city’s total water resources 590 million m ~ 3, the per capita share of 830m ~ 3, the occupancy per hectare 9000m ~ 3, Only equivalent to 1/3 of the national average. Drought and water shortage has become a constraint to our city’s economic development