土地整治对NDVI的影响研究

发布时间：2018-03-30 12:56

本文选题：土地整治　切入点：归一化植被指数　出处：《昆明理工大学》2017年硕士论文

【摘要】：土地整治是协调人地矛盾的重要措施,在土地资源优化配置、农业生产条件改善以及生态安全建设中发挥着不可忽视的作用。近年来,土地整治对生态环境的影响逐渐成为热点,并已成为实现区域土地资源集约节约利用、改善区域生态环境、以及社会经济生态环境可持续发展的前提条件。植被作为陆地生态系统的重要组成部分,是表征生态环境的重要指标之一。因此,本文引入NDVI作为分析参数,选取云南省45个已实施完成的土地整治项目区为研究对象,基于2001-2015年的MODISNDVI数据,引入配对样本T检验等方法,从项目区内部和项目区外部两个角度探究土地整治对NDVI的影响规律。主要结论如下:1)本文构建了基于NDVI的定量分析参数,为土地整治生态效益评价参数构建提供一定的参考依据。2)土地整治对项目区内的NDVI变化无明显促进作用,但能使区域NDVI变化趋于稳定。这和现有土地整治报告中的生态状况描述的“土地整治活动开展后会改善项目区生态状况”有差异。3)土地整治对项目区外一定范围内的NDVI具有促进作用,且随着距离的增大,促进作用呈现先升高后降低趋势,最大促进作用出现在项目区向外平均8km附近。
[Abstract]:Land regulation is an important measure to coordinate the contradiction between land and land. It plays an important role in the optimization of allocation of land resources, the improvement of agricultural production conditions and the construction of ecological security. The impact of land regulation on ecological environment has gradually become a hot spot, and has become the realization of intensive and economical utilization of regional land resources, and the improvement of regional ecological environment. Vegetation, as an important part of terrestrial ecosystem, is one of the important indicators to characterize ecological environment. Therefore, NDVI is introduced as an analytical parameter in this paper. Based on the MODISNDVI data from 2001 to 2015, 45 completed land remediation project areas in Yunnan Province were selected as the research objects. The method of paired sample T test was introduced. This paper probes into the influence law of land regulation on NDVI from two angles of inside and outside of the project area. The main conclusions are as follows: 1) the quantitative analysis parameters based on NDVI are constructed in this paper. It provides a certain reference basis for the construction of ecological benefit evaluation parameters of land remediation. 2) Land regulation has no obvious promoting effect on the change of NDVI in the project area. But it can make the regional NDVI change more stable. This is different from the ecological condition described in the current land regulation report. 3) the land regulation has a certain range outside the project area, which will improve the ecological condition of the project area after the land regulation activity is carried out. The NDVI has a catalytic effect. With the increase of the distance, the promotive effect increased first and then decreased, and the biggest effect occurred near the average 8km in the project area.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：Q948

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