| 安徽省霍山县植被覆盖度动态变化及预测 |
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| 引用本文： | 程先富,张方方,邓良,杨伟伟,王诗晨,徐光来.安徽省霍山县植被覆盖度动态变化及预测[J].水土保持通报,2014(4):104-109. |
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| 作者姓名： | 程先富 张方方 邓良 杨伟伟 王诗晨 徐光来 |
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| 作者单位： | 安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;安徽自然灾害过程与防控研究省级实验室, 安徽芜湖 241003;安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;安徽自然灾害过程与防控研究省级实验室, 安徽芜湖 241003;安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;安徽自然灾害过程与防控研究省级实验室, 安徽芜湖 241003;安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;安徽自然灾害过程与防控研究省级实验室, 安徽芜湖 241003;安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;安徽自然灾害过程与防控研究省级实验室, 安徽芜湖 241003 |
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| 基金项目： | 国家自然科学基金项目"流域尺度洪涝灾害风险评估方法研究:以巢湖流域为例"(41271516); 教育部人文社会科学研究规划基金项目(12YJA790016) |
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| 摘 要： | 基于1994,2000,2006和2011年4个时期的Landsat TM/ETM+遥感影像数据,应用像元二分模型和CA—Markov模型对安徽省霍山县植被覆盖度的时空变化进行了分析。结果表明,霍山县植被覆盖度总体分布特征是东北部植被覆盖度较小,南部、西北部较大;1994—2011年该县植被覆盖状况呈明显的上升趋势,高植被覆盖度的面积增加了339.91km2,中低植被覆盖度、低植被覆盖度、裸地的面积分别减少了116.15,63.34和20.29km2;CA-Markov模型可较好地预测2020年植被覆盖度的空间分布格局;霍山县植被覆盖状况的改善是人类活动和气候变化共同作用的结果。优化产业结构,防治水土流失是研究区生态环境建设的重点。
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| 关 键 词： | 遥感 植被覆盖度 动态变化 安徽省霍山县 |
| 收稿时间： | 2013/8/12 0:00:00 |
| 修稿时间： | 2013/9/13 0:00:00 |
Dynamic Change and Prediction of Vegetation Coverage in Huoshan County of Anhui Province |
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| CHENG Xian-fu,ZHANG Fang-fang,DENG Liang,YANG Wei-wei,WANG Shi-chen and XU Guang-lai.Dynamic Change and Prediction of Vegetation Coverage in Huoshan County of Anhui Province[J].Bulletin of Soil and Water Conservation,2014(4):104-109. |
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| Authors: | CHENG Xian-fu ZHANG Fang-fang DENG Liang YANG Wei-wei WANG Shi-chen and XU Guang-lai |
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| Institution: | College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Anhui 241003, China;College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Anhui 241003, China;College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Anhui 241003, China;College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Anhui 241003, China;College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Anhui 241003, China |
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| Abstract: | Based on the American Landsat TM/ETM+ remote sensing image data in 1994, 2000, 2006 and 2011, using dimidiate pixel model and CA-Markov model, spatial and temporal change and its trend and influence factors on vegetation coverage in Huoshan County of Anhui Province were analyzed. The results show that vegetation coverage are smaller in northeast area, and larger in the south and northwest area. Vegetation coverage condition has a significant upward trend from 1994 to 2011. High vegetation coverage area increased 339.91 km2. Middle-low vegetation coverage, the low vegetation coverage and bare land decreased 116.15, 63.34 and 20.29 km2, respectively. Spatial distribution pattern of vegetation coverage in 2020 can be better predicted by using CA-Markov model. Human activity and climate change made the increase of the vegetation coverage in Huoshan County, and the effect of human activity is very obvious. Optimization of industrial structure and controlling of soil and water loss are the focus of ecological environment construction in the study area. |
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| Keywords: | remote sensing vegetation coverage dynamic change Huoshan County of Anhui Province |
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