| 徐州市水土流失时空变化研究 |
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| 引用本文： | 陈报章,渠俊峰,葛梦玉,沈艳文,王安妮,王国斌.徐州市水土流失时空变化研究[J].地球信息科学,2018,20(11):1622-1630. |
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| 作者姓名： | 陈报章 渠俊峰 葛梦玉 沈艳文 王安妮 王国斌 |
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| 作者单位： | 1. 中国矿业大学环境与测绘学院,徐州 2211162. 中国科学院地理科学与资源研究所 资源与环境信息系统国家重点实验室,北京 100101 |
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| 基金项目： | 江苏省水利科技项目(2016067) |
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| 摘 要： | 本文以3S技术为支撑,在修正水土流失方程（RUSLE）的基础上,针对徐州黄泛平原-丘陵地带的特殊地形地貌、对2000年以来徐州市水土流失时空变化特征进行了分析。结果表明：2000-2014年徐州市土壤侵蚀等级以微度为主,微度侵蚀面积占总侵蚀面积多年平均达到76.34%;中度侵蚀次之,所占比例在10%~17%间;剧烈侵蚀所占比例最少。轻度及以上土壤侵蚀等级主要发生在中部微山湖下游、京杭大运河一带的丘陵岗地地区、主城区与故黄河北岸的黄泛平原地区,以及丰县、新沂、邳州的局部区域;土壤侵蚀存在一定程度年际变化特征,睢宁、丰县、邳州的部分地区侵蚀面积年际变化较为明显,土壤侵蚀总面积整体上呈现下降趋势。
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| 关 键 词： | 土壤侵蚀 时空变化 土壤侵蚀方程 3S技术 徐州市 |
| 收稿时间： | 2018-02-02 |
Spatio-temporal Analysis on Soil Erosion over Xuzhou City |
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| CHEN Baozhang,QU Junfeng,GE Mengyu,SHEN Yanwen,WANG Anni,WANG Guobin.Spatio-temporal Analysis on Soil Erosion over Xuzhou City[J].Geo-information Science,2018,20(11):1622-1630. |
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| Authors: | CHEN Baozhang QU Junfeng GE Mengyu SHEN Yanwen WANG Anni WANG Guobin |
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| Institution: | 1. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China2. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | Based on the 3S techniques and the Revised Universal Soil Loss Equation (RUSLE), we analyzed the spatial and temporal variation in water loss and soil erosion since 2000 for the special topography of the Huangfan Plain-Hilly area in Xuzhou. The results show that between 2000 and 2014 over Xuzhou area, the area for the micro degree of soil erosion grade took account for 76.34%, the moderate degree took account for 10%~17% and the strong degree took account for the least proportion. The micro degree area happened usually in the neighborhood of the downstream of the surrounding area of the Weishan Lake, hilly down land of the Grand Canal, main urban area, the Yellow River flood plain of abandoned yellow river’s left bank and the local area of Fengxian, Xinyi and Pizhou every year. The annual changes in erosion area around Suining, Fengxian and Pizhou were more obvious than the other areas and the total area of soil erosion was declining in general. |
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| Keywords: | soil erosion time and space changes soil erosion equation 3S techniques Xuzhou |
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