[1]姜永清,王万中,王占礼,等.陕北黄土高原的土壤侵蚀与综合治理[J].水土保持研究,1999,6(02):175-181.
 Jiang Yongqing,Wang Wanzhong,Wang Zhanli,et al.The Soil Erosion in the North of Shaanxi Province of the Loess Plateau and Its Synthetizing Harness[J].,1999,6(02):175-181.
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陕北黄土高原的土壤侵蚀与综合治理()
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]

卷:
6卷
期数:
1999年02期
页码:
175-181
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
The Soil Erosion in the North of Shaanxi Province of the Loess Plateau and Its Synthetizing Harness
作者:
姜永清 王万中 王占礼 胡光荣 雷惠珠
中国科学院水利部 水土保持研究所 陕西杨陵 712100
Author(s):
Jiang Yongqing Wang Wanzhong Wang Zhanli Hu Guangrong Lei Huizhu
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources Yangling Shaanxi 712100
关键词:
土壤侵蚀综合治理黄土高原
Keywords:
soil erosionsynthetizing harnessloess plateau
摘要:
陕北的榆林和延安两地区25个县(市),面积80091.88km2。水土流失强烈为最突出的特征。土壤侵蚀的特点是:(1)现代侵蚀是古代多期侵蚀轮回基础上的继承和叠加。(2)水土流失面积大,侵蚀产沙强度高。水土流失面积占76%,年输沙量6.96亿t,平均侵蚀产沙模数为9370t/(km2·a),沟谷密度大,平均密度3.06km/km2。沟谷面积占45%~55%。(3)侵蚀类型、方式和强度垂直分布和水平地带分异规律明显。(4)侵蚀强度与
Abstract:
There is about 80091.88 km2 including 25 counties(cities) in the Yulin and Yanan regions of the north of Shaanxi province of the loess plateau.Exceptionally severe soil erosion is the most out standing character in the area.And its features are as follows:(1)Based on severa l circles of ancientry erosion in geologyhistory,the erosion of moderntimes is succeeded and more quickly developed.(2)The area of soil loss is very big accounting for 76% of to talland,intensity of river sediment from erosion is very high with annual transport sediment 6.96×108 t in average.Erosion modulus by the data of hydrology station of river is about 9 370 t km2·a.The channels or vales average density is 3.06 km2. with 45%~55% of total area. (3)It is the very distinct for distributing law of type,manner and intensity of soil erosion in vert ically a long the altitude and horizontally on the latitude.(4)The close correlation between the erosion and the factors of the ecological environment.(5)The soil loss becomes more severe because of building road sand factories,exploit coal mine and so on.In order to developing vere because of building roads and factories,exploit coal mine and so on.In order to developing the econom ic and rising the living standards of the people,we have to take the synthetizing measures for controlling soil loss.

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备注/Memo

备注/Memo:
收稿日期:1999-4-15
更新日期/Last Update: 1900-01-01