摘要
Based on the land use status map of Shihezi City,the land use landscape map of Shihezi City was made with the support of GIS then many landscape indices were selected to quantitatively analyze the landscape pattern characteristics of Shihezi Oasis from three aspects of landscape diversity index,landscape space configuration index and plaque characteristics index. The results showed that the main plaque types of the landscape in Shihezi reclamation area are arable land and water areas,which totally account for 58% of the total area; farmland,gardens,woodland,urban sites,industrial and mining land use were embedded in this oasis landscape in the form of mosaics,and their fractal index was high due to the strong impact of human activities; arable land and mining land distribution was scattered,but marshes and other uncultivated land were relatively concentrated. The dominance degree of the landscape was low because there was no advantageous type in this landscape and all patches distributed equably which was easily to be disturbed so that the whole landscape was unstable. Comprehensively speaking,the landscape in Shihezi region was rather complicate,and its diversity index,fragmentation degree and heterogeneity were high.
1研究区概况石河子垦区地处天山北麓中段,古尔班通古特大沙漠南缘,即84°58’～86°24’E,43°26’～45°20’N。垦区平均海拔300～500m左右,属典型的温带大陆性气候,冬季长而寒冷,夏季短而炎热,年平均气温7.5℃～8.2℃,日照2318～2732h。
基金
Supported by Foundation Projects of Philosophical Social Sciences Research and Planning in Xinjiang Uygur Autonomous Region(07JYB027)~~
