[1]季翔,黄炎和*,林金石,等.崩岗侵蚀沟的时空侵蚀特征及预测[J].山地学报,2019,(01):86-97.[doi:10.16089/j.cnki.1008-2786.000402]
 JI Xiang,HUANG Yanhe*,LIN Jinshi,et al.Spatio-temporal Erosion Features and Prediction for the Erosion Gullies on Collapsing Hills[J].Mountain Research,2019,(01):86-97.[doi:10.16089/j.cnki.1008-2786.000402]
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崩岗侵蚀沟的时空侵蚀特征及预测()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2019年01期
页码:
86-97
栏目:
山地灾害
出版日期:
2019-03-10

文章信息/Info

Title:
Spatio-temporal Erosion Features and Prediction for the Erosion Gullies on Collapsing Hills
文章编号:
1008-2786-(2019)1-086-12
作者:
季翔12黄炎和1*林金石1蒋芳市1葛宏力1
1.福建农林大学 资源与环境学院,福州 350002; 2.福建省土壤环境健康与调控重点实验室,福州 350002
Author(s):
JI Xiang12 HUANG Yanhe1* LIN Jinshi1 JIANG Fangshi1 GE Hongli1
1. College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 2. Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, Fuzhou 350002, China
关键词:
崩岗 侵蚀沟 侵蚀特征 CA-Markov 预测
分类号:
S157
DOI:
10.16089/j.cnki.1008-2786.000402
文献标志码:
A
摘要:
崩岗是水力和重力复合的土壤侵蚀类型,严重危害我国南方地区的农业生产和生态环境。侵蚀沟对崩岗的侵蚀过程以及地貌变化起着关键作用。本研究以福建省安溪县龙门镇一处崩岗为研究区,以无人机获取的正射影像和高程数据为基础,通过采点重构坡面提取出侵蚀沟,然后对其进行时空动态分析,得到侵蚀沟的时空侵蚀特征; 然后将其侵蚀特征与CA-Markov模型耦合,通过修正转移概率矩阵以及制定空间分配规则,构建崩岗侵蚀沟模拟模型。研究结果表明:降雨量与侵蚀沟的侵蚀强度呈正相关,强降雨利于侵蚀沟的下切侵蚀,弱降雨则有利于沟沿的重力崩塌; 坡度对侵蚀沟的侧切和下切具有促进作用,沟道距离和坡面高度则对下切和堆积具有抑制作用; 由面积差异率0.18和Kappa系数0.81验证了崩岗侵蚀沟模拟模型的精度; 在对该崩岗侵蚀沟2018-12-02空间分布预测的基础上,得到其年侵蚀量和侵蚀模数,分别为653.9 m3和340 606 t·km-2·a-1。研究结果为探索崩岗侵蚀过程提供了新思路,并为崩岗侵蚀的防治工作提供了参考。

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备注/Memo

备注/Memo:
收稿日期(Received date):2018-09-12; 改回日期(Accepted date):2018-11-03
基金项目(Foundation item):国家自然科学基金项目(41601557; 41571272); 国家科技支撑计划项目(2014BAD15B0303)。[National Natural Science Foundation of China(41601557; 41571272); National Science and Technology Support Program(2014BAD15B0303)]
作者简介(Biography):季翔(1984-),女,博士,讲师,主要研究方向:景观生态和崩岗侵蚀。[JI Xiang(1984-), female, Ph.D., lecturer, specialized in landscape ecology and collapsing gully erosion] E-mail: jixiangss@126.com
*通讯作者(Corresponding author):黄炎和(1962-),男,博士,教授,主要研究方向:水土保持和崩岗侵蚀。[HUANG Yanhe(1962-), male, Ph.D., professor, specialized in soil and water conservation and collapsing gully erosion] E-mail: yanhehuang@163.com
更新日期/Last Update: 2019-01-30