[1]贾立志,高建恩,张元星,等.黄土丘陵沟壑区梯田暴雨侵蚀状况及规律分析[J].水土保持研究,2014,21(04):7-11.
　JIA Li-zhi,GAO Jian-en,ZHANG Yuan-xing,et al.Analysis of Rainstorm Erosion Disaster in Terrace Field in Loess Hilly and Gully Region[J].Research of Soil and Water Conservation,2014,21(04):7-11.
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黄土丘陵沟壑区梯田暴雨侵蚀状况及规律分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 21 期数: 2014年04期 页码: 7-11 栏目: 出版日期: 2014-08-28
Title:
Analysis of Rainstorm Erosion Disaster in Terrace Field in Loess Hilly and Gully Region
作者:
贾立志1,2, 高建恩1,3,4, 张元星3, 张梦杰3, 王显文4, 李兴华4
1. 中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100;
2. 中国科学院大学, 北京 100049;
3. 西北农林科技大学 资源与环境学院, 陕西 杨凌 712100;
4. 西北农林科技大学 水利与建筑工程学院, 陕西 杨凌 712100
Author(s):
JIA Li-zhi1,2, GAO Jian-en1,3,4, ZHANG Yuan-xing3, ZHANG Meng-jie3, WANG Xian-wen4, LI Xing-hua4
1. Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
4. College of Water Conservancy and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
梯田; 土壤侵蚀; ArcGIS; 暴雨; 规律分析; 黄土丘陵区
Keywords:
terraced field; soil erosion; ArcGIS; rainstorm; analysis; loess hilly region
分类号:
S157
摘要:
针对2013年延安百年不遇暴雨造成的黄土丘陵沟壑区梯田侵蚀灾害严重、水土资源利用率低等问题。选取安塞县马家沟流域曹新庄梯田作为典型研究对象，在进行野外监测的基础上，分析了梯田在百年不遇暴雨条件下的梯级侵蚀灾害发生规律。结果表明：按高程最上级梯田侵蚀轻微，依次往下梯田侵蚀面积所占百分比逐渐增大并且增加明显，上部梯田主要以面蚀为主，仅发生轻微沟蚀，下部梯田面蚀、沟蚀都比较严重。梯田侵蚀量与梯田汇水面积、地表径流量等条件有关，影响梯田侵蚀灾害发生的主要因素是地表径流量。该区2013年6—9月延安百年不遇暴雨梯田平均侵蚀模数为20 659.7 t/hm2，超过该区平均年侵蚀模数的47.6%，6—9月月降雨量侵蚀的临界值为118.8 mm。布置水沙调控措施层层拦蓄径流是保证梯田安全的重要措施。
Abstract:
In view of the occurrence of serious terrace rainstorm erosion disaster and low utilization of soil and water resources problems in Yan'an in 2013, this article selects the Caoxinzhuang terraced field in Majiagou watershed as a typical terrace research site. On the basis of field monitoring, we analyzed the terraces in the worst storm regularity of cascade erosion disaster conditions. The results showed that: according to the elevation, the highest terrace erosion was slight, the percentage of erosion area increased gradually and significantly as terrace area increased. The higher terraces are mainly composed of sheet erosion with only slight gully erosion. In the lower terrace sheet erosion and gully erosion were serious. Terraced field erosion related to such conditions as the terrace catchment area, surface runoff, the main factor influencing the terraces erosion disaster is the sheet runoff. The average erosion modulus of terraced field is 20 659.7 t/hm2 in Yan'an from June to September which is 47.6% more than average annual erosion modulus in this region. The critical value of rainfall causing erosion is 118.8 mm each month from June to September. The arrangement of water and sediment regulation measures is an important measure to guarantee the security of a terrace.

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备注/Memo

收稿日期:2014-01-22;改回日期:2014-03-27。
基金项目:国家“十二五”科技支撑计划项目课题“黄土丘陵沟壑区水土保持与高效农业关键技术集成示范”（2011BAD31B05）；国家自然科学基金“复杂下垫面暴雨径流侵蚀相似性模拟实验研究”（41371276）；中国科学院水利部水土保持研究所知识创新工程专项（水土保持工程）（A315021304）
作者简介:贾立志(1988-),男,山东滨州人,硕士研究生,主要研究方向为水土资源高效利用。E-mail:jializhi10000@126.com
通讯作者:高建恩(1962-),男,山西运城人,博士,博士生导师,研究员,主要研究方向为径流调控河流治理。E-mail:gaojianen@126.com

更新日期/Last Update: 1900-01-01