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Author:
Journal / Book Title:
Year:
Volume:
Issue:
yin han yu yin jiang ji huang ji huai
Author(s):
NI Jingyuan
Pages:
12
-
16+52-53
Year:
1957
Issue:
5
Journal:
Yangtze River
Keyword:
引江济黄
;
淮河流域
;
唐白河
;
提水
;
引水灌溉
;
黄淮流域
;
丹江口
;
黄河流域
;
洪泽湖
;
年雨量
;
Abstract:
<正> 一、济黄济淮的必要性从区划我国南北气候的自然界线——秦岭和淮河起,在南方长江流域,年雨量约在750~2,000公厘之间,雨量向南渐增;在北方准北、华北黄河流域等地,年雨量约在750~350公厘之间,雨量向北逐渐减少,属于半干旱地区。
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