摘要
以鹤山市1988、1995和2001年的TM影像为基本资料,在ERDAS、ARC/INFO和FRAGSTATS软件的支持下,提取景观缀块信息,并从缀块类型水平和景观水平对3个时段的景观格局进行分析;同时对1988和2001年两个时段的景观格局进行叠加分析,生成变化转移矩阵,以分析景观格局空间演化规律。结果表明,鹤山市景观格局具有动态变化的特征,不同缀块类型间各有其变化特点,且存在一定的空间演化规律。
Landsat TM images in 1988, 1995 and 2001 are used to analyze the changes of the landscape pattern in Heshan City of Guangdong Province. Several landscape indices are calculated with FRAGSTATS software, which include number and size of patches, percentage of landscape, mean patch size, patch density, edge density, perimeterarea fractal dimension, contagion index and diversity index. Moreover, the transition matrix for landscape pattern from 1988 to 2001 is obtained by using “overlaying” of ARC/INFO software. Results show that the landscape pattern has greatly been changed from 1988 to 2001. The landscape of Heshan has become more fragmented and less various, and every patch type has its own change characters. The transition matrix shows the trend of landscape pattern succession. Generally speaking, the grassland was gradually substituted by shrub land, and then by forest; or the unexploited land and grassland were substituted by arable land, and then partly by forest or construction land.
出处
《热带地理》
2005年第3期206-210,共5页
Tropical Geography
基金
中国科学院鹤山丘陵综合试验站2002年度开放基金项目"鹤山植被恢复的景观动态研究"
