| 松嫩平原农牧渔交错区生态敏感性评价研究——以杜尔伯特蒙古族自治县为例 |
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| 引用本文： | 魏文侠,王衍臻,陈秀万,江淼,李立平.松嫩平原农牧渔交错区生态敏感性评价研究——以杜尔伯特蒙古族自治县为例[J].地球信息科学,2008,10(3):370-376. |
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| 作者姓名： | 魏文侠 王衍臻 陈秀万 江淼 李立平 |
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| 作者单位： | 1. 北京大学遥感与地理信息系统研究所, 北京 100871;
2. 轻工业环境保护研究所, 北京 100089;
3. 黑龙江省杜尔伯特蒙古族自治县农业技术推广中心, 166200 |
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| 基金项目： | 黑龙江自然科学基金项目松嫩草地景观-植被-土壤的耦合机制与精准生态恢复研究 |
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| 摘 要： | 生态敏感性评价对区域生态环境建设治理具有重要实践意义和科学价值。本论文在RS、GIS技术支持下,采用ETM影像、土壤分布特征以及其他相关地理信息,选用土壤类型、植被覆盖程度、土地利用现状等作为生态敏感性评价的主要因子,并利用层次分析法确定评价因子的权重值,建立生态敏感性评价模型,对农牧渔交错区(以杜尔伯特蒙古族自治县为例)进行生态敏感性评价的研究。该文的研究结论是:低度生态敏感区以湿地生态系统和湖泡生态系统为主,包括生态状况维持较好的草原区域,抗自然灾害能力较强;中度生态敏感区以农田、草原复合生态系统为主,具有一定的生态恢复能力,能抵抗适度的人为扰动;高度生态敏感区以沙土农田、沙地草原以及湖泡周围的盐碱地生态系统为主,自我调节能力弱,相对稳定性较差。本文研究表明,利用遥感技术获取影像信息,结合地理信息系统相关空间分析方法进行区域的生态敏感性评价,具有实际可操作性,评价结果合理可靠,可以为区域生态建设提供科学依据。
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| 关 键 词： | 农牧交错区 生态敏感性评价 RS GIS |
| 收稿时间： | 2007-07-05; |
Research on Ecological Sensitivity Evaluation in Cropping-pastoral-fishing Interlacing Region of Songnen Plain——Taking Duerbete County as an Example |
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| WEI Wenxi,WANG Yanzhen,CHEN Xiuwan,JIANG Miao,LI Liping.Research on Ecological Sensitivity Evaluation in Cropping-pastoral-fishing Interlacing Region of Songnen Plain——Taking Duerbete County as an Example[J].Geo-information Science,2008,10(3):370-376. |
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| Authors: | WEI Wenxi WANG Yanzhen CHEN Xiuwan JIANG Miao LI Liping |
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| Institution: | 1. Institute of RS & GIS, Peking University, Beijing 100871, China;
2. Light Industry Environment Protection Institute, Beijing 100089, China;
3. Agricultural Technology Popularization Centre of Duerbete County, Duerbete 166200, China |
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| Abstract: | Ecological sensitivity evaluation has practical significance and scien.tif;%95%93ic values for territorial ecological environmental rehabilitation.Under the support of Remote Sensing and Geographic Information System,we use ETM images of 2004,map of soil distribation characteristics and other related geographic information,and select the soil types,vegetation covering degree and land use status quo as the major evaluation factors.We adopt analytic hierarchy process(AHP) to confirm every factor weight;then we built the evaluation model and evaluate cropping-pastoral interlacing region taking Duerbete County,which is a representative area,as an example.There are three types of ecological sensitivity districts in Duerbete County.It is concluded that the low-grade ecological sensitivity areas are the wetland and lake ecological system,including good status grassland.Its resistibility against natural calamityies is strong.The intermediate ecological sensitivity areas are cropland and grassland complex system.It has some ecological recreative ability.The high ecological sensitivity areas are sand,cropland,sand,grassland and the salina ecological system,whose self-adjustive ability is weak with poor relative stability.The study shows that Remote Sensing for data collection and Geographic Information System for spatial analysis are two important tools in the ecological sensitivity evaluation practice.The result is reasonable and credible and can support ecological rehabilitation. |
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| Keywords: | cropping-pastoral interlacing regions ecological sensitivity evaluation RS GIS |
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