Field Survey and Analysis on Status of Large and Medium Sized Check-Dams in Northern Shaanxi Province

MA Ning; ZHU Shou-jun; WANG Pan

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Field Survey and Analysis on Status of Large and Medium Sized Check-Dams in Northern Shaanxi Province

- Field Survey and Analysis on Status of Large and Medium Sized Check-Dams in Northern Shaanxi Province
- Bulletin of Soiland Water Conservation Vol. 30, Issue 3, Pages: 155-160(2011)
- 作者机构：
  
  西北农林科技大学资源环境学院, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2011
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MA Ning, ZHU Shou-jun, WANG Pan. Field Survey and Analysis on Status of Large and Medium Sized Check-Dams in Northern Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2011, 30(3): 155-160.
DOI：

MA Ning, ZHU Shou-jun, WANG Pan. Field Survey and Analysis on Status of Large and Medium Sized Check-Dams in Northern Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2011, 30(3): 155-160. DOI：

摘要

对陕西省淤地坝安全大检查专项行动中陕北大、中型淤地坝的建坝密度、实测拦泥库容、单坝控制面积等指标进行了实地调查和数据整理。结果表明，陕北大、中型淤地坝控制面积为28 703.84 km

，拦沙总量达4.11×10

kg，反映了淤地坝具有显著的拦泥淤地作用。淤地坝的建坝密度、实测拦泥库容、单坝控制面积，两两成正相关关系。陕北榆林市已淤成的大、中型淤地坝地主要用于种植农作物。但种植作物太过单一，而延安市已淤成的大、中型淤地坝地只局限于拦截泥沙。陕北淤地坝主要的管护方式为集体管护。淤地坝各部件中最严重的安全隐患是坝体隐患。

Abstract

Indices of structure density

measured sediment blocking capacity

and single-dam control area were surveyed

compiled and analyzed for the large and medium sized check-dams in Northern Shaanxi Province in the special action of check-dam safety inspection.The results show that the total control area of large and medium sized check-dams was 28703.84 km2 and the total sediment discharge reduction was 4.11@1015kg

highlighting the critical role of check-dams on sediment blocking and silting.Positive pair-wise correlations were found significantly among building density of check-dams

capacity of sediment blocking and control areas of the single-dam.The silted check-dams of Yulin City were utilized mainly for crops limited to a few species only

while in Yan.an City

the silted check-dams were confined to sediment holding only.The management and protection of check-dams were conducted collectively through governments.The most serious potential safety hazard of the check-dams could be the hidden danger in the dam body.

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