Use of intensity analysis to link patterns with processes of land change from 1986 to 2007 in a coastal watershed of southeast China
Use of intensity analysis to link patterns with processes of land change from 1986 to 2007 in a coastal watershed of southeast China
复制标题
利用强度分析将中国东南沿海流域 1986 年至 2007 年土地变化过程与模式联系起来
DOI：
10.1016/j.apgeog.2012.01.001
复制
发表时间：
2012-05-01
影响因子：
4.9
通讯作者：
Zhang, Yujia
中科院分区：
文献类型：
--
作者：
Huang, Jinliang;Pontius, Robert Gilmore, Jr.;Zhang, Yujia
本文描述了中国东南部一个亚热带沿海流域在三个连续时间段内三种土地类型之间的转变，该流域对该地区的经济和生态健康有着巨大影响。利用1986年、1996年、2002年和2007年的陆地卫星专题制图仪卫星图像，绘制了三个类别（农业用地、自然用地和建筑用地）在每个时间点的地图。采用强度分析方法，从时间间隔、类别和转变三个层面量化了变化的年度强度。结果表明，在三个时间段内，土地总体转变在加速。农业用地在第一个时间段呈现净增长，随后两个时间段则为净减少。在所有三个时间段内，农业用地和自然用地的转换变化都大于净变化。几乎所有的变化都是农业用地和自然用地之间的转换。在所有三个时间段内，农业用地和建筑用地是活跃类别，而自然用地是休眠类别。就自然用地到农业用地、农业用地到自然用地以及农业用地到建筑用地的类别和转变强度而言，在所有三个时间段内变化是稳定的。从农业用地到建筑用地的转变具有强烈的系统性。土地覆盖变化与该地区的整体经济增长和近期农业衰退有关。九龙江流域的强度分析揭示了一些信息，这些信息将土地利用和土地覆盖变化的模式与过程联系起来，这在中国许多其他城市化地区是常见的。（C）2012爱思唯尔有限公司。保留所有权利。
This paper characterizes transitions among three land categories during three consecutive time intervals in a subtropical coastal watershed of southeast China that has enormous influence on the region's economic and ecological health. Landsat Thematic Mapper satellite imagery of 1986, 1996, 2002, and 2007 were used to create maps of each time point for three categories: Agriculture, Natural, and Built. Intensity analysis was applied to quantify the annual intensity of the changes at three levels: time interval, category, and transition. The results show that overall land transformation is accelerating across the three time intervals. Agriculture shows net gain in the first time interval, then net losses in the subsequent two time intervals. The swap change is larger than the net change for both Agriculture and Natural during all three time intervals. Nearly all of the changes are exchanges between Agriculture and Natural areas. Agriculture and Built are active categories, whereas Natural is a dormant category during all three time intervals. The changes are stationary for all three time intervals in terms of the intensities of categories and transitions for Natural to Agriculture, Agriculture to Natural, and Agriculture to Built. The transition from Agriculture to Built is intensively systematic. The land-cover change is associated with the overall economic growth and recent agricultural decline of the area. The intensity analysis in the Jiulong River watershed reveals information that links patterns to processes of land-use and land-cover changes that are common in many other urbanizing places in China. (C) 2012 Elsevier Ltd. All rights reserved.