昆明市土地利用变化的强度分析与稳定性研究

发布时间：2018-07-06 07:21

本文选题：强度分析 + 关联表　；参考：《地理科学进展》2016年02期

【摘要】：在遥感、地理信息系统和统计定量分析结合的基础上,引进土地利用变化强度分析理论方法。作为一种解释性的数学框架,通过不同时间间隔的土地利用转移矩阵计算了每个时间间隔和每种地类的变化面积和变化强度。强度分析自上而下分为3个层次:间隔层次、地类层次和转变层次,将观察变化强度与平均变化强度比较,揭示不同层次的变化特征,并依次用快速的与缓慢的、活跃的与平稳的、来源与转变三对术语来描述。本文以昆明市的土地利用变化为例,深入阐述了不同层次的面积变化和强度变化,并对不同层次的稳定性进行了深入分析。结果表明:在间隔层次,2000年后昆明市的土地利用变化强度逐渐加大;在地类层次,建设用地的变化强度是最活跃的,林地的变化强度是最平稳的;在转变层次,增加的建设用地主要来源于耕地,减少的林地主要转变为草地。强度分析在土地利用变化过程分析中具有系统性的优势,对深入挖掘土地利用变化信息、理解土地利用变化过程具有重要作用。
[Abstract]:Based on the combination of remote sensing, geographic information system and statistical and quantitative analysis, the theoretical method of intensity analysis of land use change is introduced. As an explanatory mathematical framework, land use transfer matrix with different time intervals is used to calculate the change area and intensity of each time interval and each land category. The intensity analysis is divided into three levels from top to bottom: interval level, ground level and transition level. The observed change intensity is compared with the average change intensity, and the change characteristics of different levels are revealed. Active and steady, source and transformation are described in three pairs of terms. Taking the land use change in Kunming as an example, this paper expounds the area change and intensity change of different levels, and analyzes the stability of different levels. The results show that the intensity of land use change in Kunming is increasing gradually after 2000, the change intensity of construction land is the most active, the change intensity of forest land is the most stable, and the change intensity of forest land is the most stable. The increase of construction land is mainly derived from cultivated land, and the reduced forest land is mainly converted to grassland. The intensity analysis has a systematic advantage in the analysis of the process of land use change, which plays an important role in excavating the information of the change of land use and understanding the process of the change of land use.
【作者单位】：中国矿业大学(北京)地球科学与测绘工程学院;中国科学院遥感与数字地球研究所;湖南科技大学计算机科学与工程学院;
【基金】：国家自然科学基金项目(51474217,71150001)~~
【分类号】：F301.2

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