南极大陆冰缘环境变迁与沿海盐湖生态特征

现代南极大陆冰缘地理地貌，形成于１８０００年以来全球气候变化，南极大陆冰盖的退缩，以及随后的大陆均衡抬升和海平面变化等过程。研究表明，在维斯德福尔特丘陵地，这一过程仍在继续，并导致该区许多海生盐湖自然环境和理化因子的改变，以及湖中生物的种群结构的变化和群落演替。本文通过对这些现象的剖析，阐明了南极大陆冰缘环境变迁的客观存在，为进一步研究南极乃至全球气候变化提供生态学佐证。

ECOLOGY FEATURES OF COASTAL SALINE LAKES RELATED TO ENVIRONMENTAL EVOLUTION IN THE AREA OF ANTARCTIC CONTINENTAL ICE EDGE

Modern geomorphological feature of Antarctic continental margin formed in processes of globle climate changing and ice sheet retreating subsequent flooding of areas by sea water and the isostatic uplift raising since 18 000 aB.P..Ecological investigation has been done in some saline lakes in Vestfold Hills(60°38′S,78°06′E),East Antarctica.The results show that changes of natural environment and physical chemical factors,as well as the structure of biotic species and succession do occur in some lakes,due to seasons,local climate changes,environmental evolution and geographic variances in regions,which is continuing in present time.It should be regarded as importent ecological proof for studying on Antarctic and globle climate changes.