PROGRESS IN GEOGRAPHY ›› 2010, Vol. 29 ›› Issue (3): 307-311.doi: 10.11820/dlkxjz.2010.03.008

• Original Articles • Previous Articles     Next Articles

Research on Spatial and Temporal Dynamic Evolution of Wuliangsuhai Lake Wetland

CAO Yang1, SHANG Shiyou1, YANG Jingrong2, WU Libin1, LIU Hailiang1, LUAN Kuifeng3   

  1. 1. Inner Mongolia Agricultural University, Huhhot 010018, China|
    2. Remote Sensing Center, Inner Mongolia, Huhhot 010010, China;
    3 Anhui University of |Science and Techonology, Huaina 232001, China
  • Online:2010-03-25 Published:2010-03-25


The information of multi-source remote sensing images of Wuliangsuhai wetland at different time and space granularity from 1986 to 2008, which lies in the semi-desert area, was obtained by GIS and RS technology combined with the theories and methods of landscape ecology. The dynamics of landscape patch index for different types of areas was described and the spatial-temporal heterogeneity of wetland ecological resources was analyzed. Evolutionary relationship and direction among various wetland types of Wuliangsuhai were researched. The dynamic evolution trends of various types of wetland landscape were analyzed. The results showed that the degree of landscape fragmentation was reduced, the water district was lost, and underwater plants were tufted. The average area of reed-based large hyper-surface plants was above 49% of wetland, which was the dominant evolution type of the lake wetland. Evolution of spatial and temporal patterns of wetlands was related to climate, water conditions and artificial impact, which reflected the process and intensity of human disturbance on wetland landscape.

Key words: multi-platform remote sensing data, semi-desert area, space-time evolution, Wuliangsuhai (Lake)