基于RS和GIS的汶川地震极重灾区生态恢复监测——以都江堰市为例
|
摘要
"5.12"汶川地震造成灾区尤其极重灾区严重的生态破坏。论文以都江堰市为例,利用遥感(RS)和地理信息系统(GIS)等手段对震害区土地利用/植被覆盖变化进行监测,对动态变化进行定量分析,得到都江堰市地震生态受损及灾后两年生态恢复信息,并结合DEM对变化信息进行空间分析,研究灾害发生、生态恢复与坡度的相关关系,从而为灾区生态环境的恢复重建和保障生态安全提供借鉴和依据。
The Wenchuan earthquake on May 12th,2008 caused serious ecological damage to disaster area especially the very quake-hit area.In this paper,a case study concerned was conducted in Dujiangyan City.In the study,by means of Remote Sensing(RS) and geographic information system(GIS),the change of land utilization and vegetation cover in the earthquake disaster area were monitored.The dynamic changes were analyzed quantitively to obtain the information of ecological loses and restoration after two years later.Combining DEM,the changing information was analyzed spatially to study the correlation between the disaster occurrence as well as ecological restoration and the hill slope,which provided reference and basis for restoration and reconstruction of ecological environment and ensuring the ecological safety for the disaster areas.
The Wenchuan earthquake on May 12th,2008 caused serious ecological damage to disaster area especially the very quake-hit area.In this paper,a case study concerned was conducted in Dujiangyan City.In the study,by means of Remote Sensing(RS) and geographic information system(GIS),the change of land utilization and vegetation cover in the earthquake disaster area were monitored.The dynamic changes were analyzed quantitively to obtain the information of ecological loses and restoration after two years later.Combining DEM,the changing information was analyzed spatially to study the correlation between the disaster occurrence as well as ecological restoration and the hill slope,which provided reference and basis for restoration and reconstruction of ecological environment and ensuring the ecological safety for the disaster areas.
引文
[1]欧阳志云,徐卫华,王学志,等.汶川大地震对生态系统的影响[J].生态学报,2008,28(12):5801-5809.
[2]王文杰,潘英姿,徐卫华,等.四川汶川地震对生态系统破坏及其生态影响分析[J].环境科学研究,2008,21(5):110-116.
[3]徐新良,江东,庄大方,等.汶川地震灾害核心区生态环境影响评估[J].生态学报,2008,28(12):5899-5908.
[4]吴宁,卢涛,罗鹏,等.地震对山地生态系统的影响—以5.12汶川大地震为例[J].生态学报,2008,28(12):5810-5819.
[5]张春敏,王根绪.汶川大地震灾害对区域生态系统的影响—以青川、平武和茂县为例[J].生态学报,2008,28(12):5833-5841.
[6]彭瑛,刘文婷,张志,等.基于遥感调查的汶川地震极重灾区次生地质灾害分布特征[J].长江流域资源与环境,2010,19(1):107-112.
[7]包维楷,庞学勇.四川汶川大地震重灾区灾后生态退化及其基本特点[J].应用与环境生物学报:2008,14(4):441-444.
[8]CHEN Jianping,LI jianfeng,QIN Xuwen.RS and GIS-basedStatistical Analysis of Secondary Geological Disasters after the2008 Wenchuan Earthquake[J].Acta Geologica Sinica(EnglishEdition,2009,83(4):776-785.
[9]刘卫,罗鸿兵,刘霞.“5.12”地震前后都江堰市地表覆盖状况变化分析[J].四川环境,2011,30(6):69-75.
[10]孙家炳.遥感原理与应用[M].武汉:武汉大学出版社,2003.185-187.
[2]王文杰,潘英姿,徐卫华,等.四川汶川地震对生态系统破坏及其生态影响分析[J].环境科学研究,2008,21(5):110-116.
[3]徐新良,江东,庄大方,等.汶川地震灾害核心区生态环境影响评估[J].生态学报,2008,28(12):5899-5908.
[4]吴宁,卢涛,罗鹏,等.地震对山地生态系统的影响—以5.12汶川大地震为例[J].生态学报,2008,28(12):5810-5819.
[5]张春敏,王根绪.汶川大地震灾害对区域生态系统的影响—以青川、平武和茂县为例[J].生态学报,2008,28(12):5833-5841.
[6]彭瑛,刘文婷,张志,等.基于遥感调查的汶川地震极重灾区次生地质灾害分布特征[J].长江流域资源与环境,2010,19(1):107-112.
[7]包维楷,庞学勇.四川汶川大地震重灾区灾后生态退化及其基本特点[J].应用与环境生物学报:2008,14(4):441-444.
[8]CHEN Jianping,LI jianfeng,QIN Xuwen.RS and GIS-basedStatistical Analysis of Secondary Geological Disasters after the2008 Wenchuan Earthquake[J].Acta Geologica Sinica(EnglishEdition,2009,83(4):776-785.
[9]刘卫,罗鸿兵,刘霞.“5.12”地震前后都江堰市地表覆盖状况变化分析[J].四川环境,2011,30(6):69-75.
[10]孙家炳.遥感原理与应用[M].武汉:武汉大学出版社,2003.185-187.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心