基于GIS退耕还林动态监测与决策分析的研究

发布时间：2017-12-31 23:06

本文关键词：基于GIS退耕还林动态监测与决策分析的研究　出处：《吉林农业大学》2016年硕士论文　论文类型：学位论文

【摘要】：本课题通过应用GIS技术,在数据准备期间,可以高效率、准确的获取所需要的数据,为后期的退耕还林决策提供详细的数据支持,使得退耕还林实施工程管理有力、发展高效。首先确定影响退耕还林决策的因素,再对每个影响因素进行影响因子的设定,通过实验分析得出每个影响因子对退耕还林最终决策的影响,最后整合所有影响因子的结果,给出最佳的退耕还林决策方案。方案包括确定退耕还林区域、退耕还林时间顺序和退耕还林树种的选择等。该方案为长期退耕还林决策给出科学的意见,做到具体问题具体分析,达到精准退耕、精准植林的目的。通过遥感图像的调查分析,了解长春市净月区的土地种植情况,根据政府出台的相关退耕还林的文件,结合实际地貌情况的坡度、坡向、土壤侵蚀、水系和居民地等实际情况,利用ArcGIS软件的多元化信息空间叠加分析,确定耕地和未利用土地等具体退耕区域,以及退耕后还林的具体区域及面积,再根据水体和居民地距离等因素,确定退耕后终止经济林和生态林的区域及面积。最终根据以上分析结果确定出最佳的退耕还林方案。利用GIS技术、遥感技术等手段对退耕还林工程进行动态监测和决策分析,对于退耕还林工作的科学实施起到了十分重要的作用,再结合GPS技术进行实地监测,发挥其定位精准的优势,将有效的推动退耕还林工程的高效开展。
[Abstract]:Through the application of GIS technology, during the period of data preparation, we can obtain the needed data efficiently and accurately, and provide detailed data support for the later decision of returning farmland to forest. To make the implementation of project management, development and efficiency. First, determine the factors that affect the decision-making of returning cropland to forestry, and then set the influencing factors for each factor. Through the experimental analysis, the influence of each influencing factor on the final decision of returning cropland to forest is obtained. Finally, the results of all the factors are integrated, and the optimal decision scheme of returning cropland to forest is given. The scheme includes determining the region of returning farmland to forest. The scheme gives scientific advice for the long-term decision of returning cropland to forest, and makes concrete analysis of specific problems, so as to achieve the precision of returning farmland to forest. Through the investigation and analysis of remote sensing images to understand the situation of land planting in Changchun net Moon area according to the relevant documents issued by the government to return farmland to forest combined with the actual slope of the geomorphological situation slope direction. Soil erosion, water system and residential land and other actual conditions, using the ArcGIS software multi-information space superposition analysis, to determine the specific arable land and unused land and other specific areas. And the specific area and area of returning forest after returning to farmland, and then according to the distance between water body and inhabitant land and other factors. Determine the area and area of the economic forest and ecological forest after returning farmland. Finally, according to the above analysis results to determine the best scheme of returning farmland to forest. Use GIS technology. Remote sensing technology and other means for the conversion of cropland to forestry project dynamic monitoring and decision-making analysis, for the scientific implementation of conversion of cropland to forestry work played a very important role, and then combined with GPS technology to carry out field monitoring. Give play to its accurate positioning advantages, will effectively promote the conversion of cropland to forestry project.
【学位授予单位】：吉林农业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：S757;TP751

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