[1]张利超,刘窑军,李朝霞,等.降雨侵蚀过程中红壤坡耕地地表汇流网络特征[J].水土保持研究,2019,26(01):53-60.
　ZHANG Lichao,LIU Yaojun,LI Zhaoxia,et al.Characteristics of the Soil Surface Flow Networks on Red Soil Sloping Farmland Under Rainfall Simulation[J].Research of Soil and Water Conservation,2019,26(01):53-60.
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降雨侵蚀过程中红壤坡耕地地表汇流网络特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年01期 页码: 53-60 栏目: 出版日期: 2019-02-28
Title:
Characteristics of the Soil Surface Flow Networks on Red Soil Sloping Farmland Under Rainfall Simulation
作者:
张利超1,2, 刘窑军1, 李朝霞2, 葛佩琳1, 杨伟3
1. 江西省水土保持科学研究院 江西省土壤侵蚀与防治重点实验室, 南昌 330029;
2. 华中农业大学 农业部长江中下游耕地保育重点实验室, 武汉 430070;
3. 湖北省水利水电科学研究院, 武汉 430070
Author(s):
ZHANG Lichao1,2, LIU Yaojun1, LI Zhaoxia2, GE Peilin1, YANG Wei3
1. Jiangxi Provincial Key Laboratory of Soil Erosion and Prevention, Jiangxi Institute of Soil and Water Conservation, Nanchang 330029, Chhina;
2. Key Laboratory of Arable Land Conservation in the Middle and Lower Reaches of Yangtze River, ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China;
3. Hubei Water Resources Research Institute, Wuhan 430070, China
关键词:
微地貌; 激光扫描; 汇流网络; 坡面水蚀; 分形维数
Keywords:
microrelief; laser scanning; flow networks; water erosion on slope; fractal dimension
分类号:
S157
摘要:
为研究降雨侵蚀过程中南方红壤区坡耕地地表汇流网络特征，应用亚毫米级高精度激光扫描和计算机数字图像处理相结合的方法在野外原位研究了南方几个典型母质发育的红壤模拟降雨条件下坡面汇流网络特征变化过程。结果表明：（1）在降雨侵蚀过程中，汇流密度和径流频度整体呈增加趋势，尤其是在第一场降雨过程中最为明显；（2）在第二、三场降雨侵蚀过程中的变化趋势因土壤性质和雨强的不同而出现差异；（3）在坡面侵蚀研究中，分形维数Ds可以较好的区别降雨前后整体汇流网络特征的变化。研究结果对南方红壤区坡耕地降雨侵蚀过程模拟与预测模型的研究、水土流失防治与水土保持规划设计具有一定的参考价值和借鉴意义。
Abstract:
In order to measure the features of surface flow networks on red soil sloping farmland under rainfall simulation, the submillimeter level high precision laser scanning and the computer digital image processing methods were used for the in-situ measurement of the surface flow networks on the red soil sloping farmland which weathered from several typical parent materials in the southern China. The results showed that:(1) flow density and runoff frequency increased with the rainfall duration, especially in the first rainfall event; (2) in the second and third rainfall events, the differences of flow density and runoff frequency varied for the different soil properties and rainfall intensity; (3) in the study of slope erosion, the fractal dimension Ds were beneficial in distinguishing the variation of the overall network characteristics before and after rainfall. The results of this study provided the advice on the soil and water conservation of red soil sloping farmland in southern China.

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备注/Memo

收稿日期:2018-4-8;改回日期:2018-5-22。
基金项目:国家重点研发计划项目（2017YFC0505405）；国家自然科学基金（41571266）；江西省科技支撑计划重大项目（2015ZBBF60009）；江西省水利科技计划项目（KT201517；KT201718）；江西省青年科学基金项目（20171BAB213021）
作者简介:张利超(1983-),男,黑龙江省佳木斯市人,硕士,高级工程师,研究方向:水土保持科学研究、水土保持规划设计。E-mail:13617005728@163.com
通讯作者:李朝霞(1976-),女,湖北丹江口市人,博士,教授,研究方向:土壤侵蚀过程及机理、水土保持与农业生态。E-mail:zxli@mail.hzau.edu.cn

更新日期/Last Update: 1900-01-01