MA Lichi,WANG Jinliang,LI Shihua,et al.Remote Sensing Monitoring of Soil Erosion in Fuxianhu Lake Basin[J].Research of Soil and Water Conservation,2016,23(03):65-70,76.
抚仙湖流域土壤侵蚀遥感监测
- Title:
- Remote Sensing Monitoring of Soil Erosion in Fuxianhu Lake Basin
- Keywords:
- soil erosion; remote sensing monitoring; USLE model; ecological environment; Fuxianhu Lake Basin
- 分类号:
- S157
- 摘要:
- 为了有效保护抚仙湖流域生态环境安全，推进其可持续发展，对抚仙湖流域土壤侵蚀情况进行遥感监测研究。采用“3S”技术与野外实地调查相结合的方法，以云南省第一次全国地理国情普查成果为基础，基于通用水土流失方程（USLE）模型，估算抚仙湖流域1974—2014年的水土流失量，并探讨流域土壤侵蚀强度的时空分布及变化规律。研究发现：（1）抚仙湖流域土壤侵蚀强度在很大程度上受降雨量的影响；（2）土壤侵蚀量总体呈现出波动上升下降再上升的趋势。不同强度土壤侵蚀量的变化表明其水土流失经历了先加剧后缓解的变化过程，流域部分敏感区土壤侵蚀程度不断加剧；（3）流域水土流失的空间分布具有一致性，水土流失最严重的区域基本分布在抚仙湖的东西两岸以及南岸的部分区域。
- Abstract:
- In order to effectively ensure the safety of Fuxianhu Lake Basin ecological environment and promote its sustainable development, the situation of soil erosion of Fuxianhu Lake Basin was studied by means of remote sensing monitoring. The soil erosion amount of Fuxianhu Lake Basin during the period from 1974 to 2014 was estimated by using method of combination of 3S technology and field investigation and based on achievements of general survey of the first national geographical conditions in Yunnan Province and USLE model, and the spatiotemporal distribution and change rule of soil erosion intensity in this basin were discussed. The results showed that: (1) the soil erosion intensity in Fuxianhu Lake Basin was greatly influenced by rainfall; (2) the amount of soil erosion presented a trend of fluctuation increase, decline and then rise, and different intensities of soil erosion changes showed that the soil erosion had experienced the changing processes of initial intensification and later slightness, soil erosion degree was intensifying in some sensitive area of in the basin; (3) the spatial distribution of soil erosion in the basin had the consistency, the most serious soil erosion area of the basin distributed on both sides of the East and West, and parts of the south region.
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备注/Memo
收稿日期:2015-05-15;改回日期:2015-06-05。
基金项目:国家测绘地理信息局地理国情监测示范项目“抚仙湖流域生态环境动态监测”（测国土函[2014]35号）；国家自然科学基金项目（41561048）；云南省中青年学术技术带头人培养项目（2008PY056）
作者简介:马骊驰(1990-),女,云南文山县人,硕士研究生,研究方向为资源环境信息系统。E-mail:773750300@qq.com
通讯作者:王金亮(1963-),男,云南武定县人,教授,主要从事资源环境遥感研究。E-mail:wang_jinliang@hotmail.com