基于遥感数据的晋陕蒙交汇区景观格局定量分析 - 生态学杂志.pdf

Chinese Journal of Ecology 2005, 4( 9) : 10 ~ 10 7 * 以东胜幅1/ 25 万TM 影像分析为例 李团胜 ( 长安大学地球科学与国土资源学院, 西安710054) 1996 8 1/ 25 TM , Arc/ Info Arc/ view , , , 9 FRAGSTATS , , ( PD2) , , TP79 A 1000- 4890( 2005) 09- 10 - 05 A quantitative analysis of the landscape pattern of the juncture of Shaanxi, Shanxi and Inner Mongolia based on remotely sensed data A case study of Dongsheng sheet TM image. LI Tuansheng ( College of Earth Sci ence and Land and Resources, Chang an University, X i an 710054, China). Chinese Journal of Ecology , 2005, 4(9) : 10 ~ 10 7. T he juncture of Shaanxi, Shanxi and Inner Mongolia is a typical ecotone w hich has alw ays been the hot area of desertification research. We classified the landscape into 9 types, including farmland, grassland, forestland, sandy land, saline alkali land, rock, city and town,w ater, and flood land.Applying the spatial pattern analysis softw are FRAGSTATS of the vector version, we calculated a set of landscape indices, corresponding to the t hree scale levels of patch, class and landscape. At patch level, the forestland(patch id 20) showed the small est shape index ( 1.05) indicating a simple shape in this case, whereas the grassland ( patch id 14) had the largest shape index( 5. 62) show ing the most noncircular( i. e. , most complex) shape.The fractal dimension ( FD= 1. 21) also revealed the simple shape of the former patch type. At class level,w e found that the LPI, AWMPFD, PSSD, ED, TEWGT , CEWD, TE, MPS, and AWMSI of the grassland, which make up 7 . 796% of the total area, were