论文部分内容阅读
对东南极大陆沿海西福尔丘陵 ( Vestfold Hills,68°38′S,78°0 6′E)若干主要湖泊及其周边环境进行了现代生态学和古生态学研究。分析了不同类型湖泊的地理地貌环境和理化要素的动态特征、生态群落结构类型。利用湖岸古化石的生态组成与放射性同位素测定资料 ,推断了晚更新世以来随着全球海平面变化 ,该地区所经历的海侵、海退及其地理地貌改变过程 ,尤其重现了本区 1 80 0 0年以来因两次海侵而发生的湖泊生态演替过程。本文首次推出了该区海成湖泊 4种环境演化模式 ,认为这些湖泊环境演化模式不仅是区域环境生态历史演变的缩影 ,而且也是现今南极局部环境变化和全球气候变化的具体反映
Modern ecological and paleoecological studies were carried out on several major lakes and their surrounding areas in the Vestfold Hills (68 ° 38’S, 78 ° 0 6’E) along the coastal southeastern coast of China. This paper analyzes the dynamic characteristics of the geography, geography and physiology elements and the types of ecological community structure in different types of lakes. Based on the ecological composition and radioisotope data of the ancient fossil lakeshore, it is deduced that since the Late Pleistocene the transgression, regression and geomorphologic change experienced by the region have been reckoned with the changes of the global sea level, The process of lake ecological succession due to two transgressions during the 1980s. This paper presents for the first time four kinds of environmental evolutional models of the Haicheng Lake in this area. It is concluded that these lake environmental evolution models are not only a microcosm of the evolution of regional environmental and ecological history, but also a concrete reflection of the current local climate change and global climate change in the Antarctic