CAJ | 학술논문

根据河西走廊区域生态特点以及水资源分布状况，将河西走廊分为祁连山水源涵养区、河西走廊绿洲区、内陆河尾闾湿地区、河西走廊荒漠区4个生态分区。综合运用RS和GIS技术，以1949年、1975年、2000年及2010年为评价节点，对河西走廊不同生态分区的结构组成及生态指标进行了跟踪评价，分析了河西走廊生态格局演变的主要特征。分析表明：1949年以后，河西走廊生态格局演变主要是以水资源开发利用为主线，以河流为纽带进行的。水资源在人工绿洲和天然绿洲、流域上中下游之间重新进行分配，形成了人工绿洲与荒漠、天然绿洲之间此消彼长的关系，决定了生态格局演进的方向与进程。
근거하서주랑구역생태특점이급수자원분포상황，장하서주랑분위기련산수원함양구、하서주랑록주구、내륙하미려습지구、하서주랑황막구4개생태분구。종합운용RS화GIS기술，이1949년、1975년、2000년급2010년위평개절점，대하서주랑불동생태분구적결구조성급생태지표진행료근종평개，분석료하서주랑생태격국연변적주요특정。분석표명：1949년이후，하서주랑생태격국연변주요시이수자원개발이용위주선，이하류위뉴대진행적。수자원재인공록주화천연록주、류역상중하유지간중신진행분배，형성료인공록주여황막、천연록주지간차소피장적관계，결정료생태격국연진적방향여진정。
Considering the characteristics of ecosystem and distribution of water resource, Hexi Corridor Region can be divided into four ecological regions, including Qilian Mountain headwater region, Hexi Corridor oasis region, tail-end-lake& wetland and Hexi Corridor desert region.Using RS and GIS technology, taking the years 1949, 1975,2000 and 2010 as the evaluation points, We tracking evaluated the structure, composition and ecological indicators of the four different ecological regions and analyzed the main characters of the changes of ecological patterns in Hexi Corridor.We concluded that the changes of ecological patterns in Hexi Corridor are taking place with utilization of water resource as its thread and rivers as its bounds.The water resource is re-distributed among artificial oasis and natural oasis, as well as the upper, middle and lower reaches of the river basin.Changing relationship among artificial oasis, dessert and natural oasis is formed, which determines the direction and process of the changes of ecological patterns.