[1]郭红丽,代梦梦,童建,等.基于无人机遥感的江苏省河道边坡水土流失要素调查[J].江苏水利,2022,(04):5-10.
 GUO Hongli,DAI Mengmeng,TONG Jian,et al.Investigation on soil erosion factors of river slope in Jiangsu Province based on UAV remote sensing[J].JIANGSU WATER RESOURCES,2022,(04):5-10.
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基于无人机遥感的江苏省河道边坡水土流失要素调查()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年04期
页码:
5-10
栏目:
农村水利
出版日期:
2022-04-27

文章信息/Info

Title:
Investigation on soil erosion factors of river slope in Jiangsu Province based on UAV remote sensing
文章编号:
1007-7839(2022)04-0005-0006
作者:
郭红丽1代梦梦23童建1梁音2李盟1
(1.江苏省水文水资源勘测局,江苏 南京 210029;2.中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏 南京 210008;3.中国科学院大学现代农业科学学院,北京 100049)
Author(s):
GUO Hongli1DAI Mengmeng23TONG Jian1LIANG Yin2LI Meng1
(1.Jiangsu Province Hydrology and Water Resources Investigation Bureau, Nanjing 210029,China;2.State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 21008,China;3.College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049,China)
关键词:
河道边坡利用类型无人机影像水土流失江苏平原
Keywords:
river side slope utilization type UAV aerial image water and soil loss Jiangsu plain
分类号:
X53
文献标志码:
A
摘要:
基于野外实地调查资料和无人机航拍影像,提取了江苏省典型河道的边坡特征,并基于分析结果对全省各等级河道不同利用类型下的边坡面积进行了统计。结果表明:(1)调查河段4类河流边坡平均宽度分别为23.29,9.64,8.53和6.10 m,对应的平均坡度分别为19.11°,18.02°,23.07°和25.97°,边坡宽度和坡度随水面宽度分别表现出线性增大和减小的趋势;(2)边坡利用类型主要有草地、林地、耕地、裸地、护坡工程用地和其他6种,流域性河道(Ⅰ)边坡草地和林地占比达81.62%,但也存在7.72%的护坡工程用地,区域性骨干河道(Ⅱ)、其他重要河道(Ⅲ)和县乡河道(Ⅳ)草地和林地面积占比在61.03%~75.61%之间,但均存在较大面积的耕地和裸地;(3)江苏省河道边坡总面积约1 638.54 km2,其中4类河道边坡占比分别为9.95%,6.47%,16.96%和66.62%,说明边坡主要存在于县乡河道和其他重要河道2种类型中,需要在实际的管理中重点关注。
Abstract:
Based on the field survey data and unmanned aerial vehicle (UAV) aerial images, the slope characteristics of typical river channels in Jiangsu Province were extracted, and based on the analysis results, the slope areas under different utilization types of rivers of various grades in the province were counted. The results are as follows: 1) The average slope widths of the four rivers in the investigated reach were 23.29m, 9.64 m, 8.53 m and 6.10 m, respectively, and the corresponding average slopes were 19.11°, 18.02°, 23.07° and 25.97°, respectively. The slope width and slope show a linear increase and decrease trend with the water surface width, respectively. 2) Slope utilization types mainly included grassland, woodland, cultivated land, bare land, slope protection land and others. The proportion of grassland and woodland on the slope of regional channel (Ⅱ) reached 81.62%, but there were 7.72% of slope protection land. The proportion of grassland and woodland on the regional backbone river channel (Ⅱ), other important river courses (Ⅲ) and township river courses (Ⅳ) was between 61.03 % and 75.61 %, but there were large areas of cultivated land and bare land. 3) The total area of river slope in Jiangsu Province was about 1638.54 km2, and the proportion of four types of river slope was 9.95%, 6.47%, 16.96% and 66.62%, respectively. It showed that the slope mainly exists in the township river courses (Ⅳ) and other important river courses (Ⅲ), which needs to be focused on in the actual management.

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备注/Memo

备注/Memo:
收稿日期:2021-09-07
基金项目:江苏省水利科技项目(2019039、2020051)
作者简介:郭红丽(1975— ),女,高级工程师,工程硕士,主要从事水土保持监测、信息化监管、信息系统运行管理工作。E-mail: 626408148@qq.com
通信作者:梁音(1963— ),男,研究员,博士,博士生导师,主要从事土壤侵蚀与水土保持生态恢复研究。E-mail: yliang@issas.ac.cn
更新日期/Last Update: 2022-04-27