锡林郭勒盟草地变化监测及驱动力分析

发布时间：2018-05-10 13:57

本文选题：草地变化 + 驱动力　；参考：《中国环境科学》2017年12期

【摘要】：综合利用RS和GIS技术,结合2000~2013年长时间序列遥感影像数据,对锡林郭勒盟的草地变化进行了监测与分析,并从土地利用、气象条件、人类活动等多方面,利用地理相关分析等地统计分析方法,开展了草地变化驱动力分析.结果表明:2000~2013年间,锡林郭勒盟的草地质量总体上得到改善,约有4.04%的区域发生变化,变化区域中大部分属于显著或微弱增加,仅有约3.93%的变化区域退化比较明显,它们主要集中在辖区从东北向西南的中部地区,尤以苏尼特左旗东南部、锡林浩特市中部以及西乌珠穆沁旗东北部退化严重.通过相关分析发现,研究区域内草地变化与气温的相关性不显著,而与降水和人类活动的相关性显著.在上述草地退化比较严重的苏尼特左旗东南部?锡林浩特市中部以及西乌珠穆沁旗东北部地区,气温和降水的变化对草地年NDVI最大值的变化均没有显著影响(P0.1);但除苏尼特左旗东南部外,锡林浩特市、西乌珠穆沁旗辖区内的草地退化区域皆分布在矿区8km的缓冲区内,尤其是西乌珠穆沁旗辖区内,矿区内部的草地出现了严重退化.相关的结论可服务于锡林郭勒草原生态保护监管等管理决策工作,同时相关的技术方法也可为其他区域生态变化的监测与分析提供借鉴和参考.
[Abstract]:Based on RS and GIS techniques and the remote sensing image data of long time series from 2000 to 2013, the grassland changes in Xilinguole League were monitored and analyzed, and the land use, meteorological conditions, human activities and so on were analyzed. The driving force analysis of grassland change was carried out by means of geographical correlation analysis and other geographical statistical analysis methods. The results showed that the grassland quality of Xilinguole League had been improved in general during the period of 2000 / 2013. About 4.04% of the areas changed, most of which were significant or slight increase, and only 3.93% of the changed areas were degraded obviously. They are mainly concentrated in the central area from northeast to southwest, especially in the southeast of Sunita left Banner, the central city of Xilinhaote and the northeast of West Urumqin Banner. Through correlation analysis, it was found that the correlation between grassland change and temperature was not significant in the study area, but significant correlation with precipitation and human activities. In the southeastern part of Sunita's left flag, where grassland degradation is more severe? In the central part of Xilinhaote and the northeast of West Wuzhoumu Qin Banner, the changes of temperature and precipitation have no significant effect on the maximum annual NDVI of grassland, but except for the southeast of Sunita left Banner, the change of precipitation in Xilinhaote is not significant. The grassland degradation areas in West Uzhimuqin Banner are all distributed in the buffer zone of 8km in mining area, especially in the West Uzhimuqin Banner area, and the grassland within the mining area has been seriously degraded. The relevant conclusions can serve for the management and decision-making work such as ecological protection and supervision of Xilinguole grassland, and the relevant technical methods can also be used for reference and reference for monitoring and analysis of ecological changes in other regions.
【作者单位】：中国矿业大学(北京)地球科学与测绘工程学院;环境保护部卫星环境应用中心;中国科学院遥感与数字地球研究所;中国人民大学环境学院;
【基金】：环境遥感技术研究基金资助项目(WHJJ2016-005)
【分类号】：S812

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