Ecosystem evolution of Lake Gusinoe (Transbaikal region, Russia)
Ecosystem evolution of Lake Gusinoe (Transbaikal region, Russia)
复制标题
古西诺埃湖生态系统演化（俄罗斯外贝加尔地区）
DOI：
10.1007/s10201-005-0154-9
复制
发表时间：
2005
期刊：
影响因子：
1.6
通讯作者：
H. Naganawa
中科院分区：
文献类型：
--
作者：
B. I. Pisarsky;Alina Mikhailovna Hardina;H. Naganawa
古西诺湖位于古生代和中生代沉积盆地之上。有记载的湖泊生态系统演化历史不超过300年。目前的湖泊流域主要形成于新生代，但在过去的一个世纪里，湖泊受到了重大的人为影响。人类影响下的生态系统演变始于20世纪40年代湖附近露天采煤的发展。人口增长和古西努泽尔斯克国家地区发电厂、跨蒙古铁路和相关车站以及军事设施的建设是人为影响的主要来源。自20世纪50年代初以来，大约有五种鱼类被引入古西诺湖或入侵该湖，至少有六种本地物种已经消失或濒临灭绝。根据研究结果，将古西诺湖盆地（Gusinoozersk Basin）的水文地球化学特征划分为(1)超淡水区、(2)淡水区、(3)矿化水区和(4)低盐水区。考虑到工业发展的风险，提出了流域水体化学成分变化以及浮游动物和底栖动物过渡的一些附加数据，并对前景进行了讨论。
Lake Gusinoe is situated on a basin originating from Paleozoic and Mesozoic deposits. The recorded history of the lake's ecosystem evolution is no more than 300 years. The present lake drainage basin was formed mainly in the Cenozoic era, but during the past century, major anthropogenic impacts on the lake have occurred. The human-influenced evolution of the ecosystem began in the 1940s with the development of opencut coal mining nearby the lake. Population increase and the building of the Gusinoozersk State Regional Power Plant, the Trans-Mongolian Railroad and an associated station, and military installations were the major sources of anthropogenic impacts. Since the early 1950s about five species of fish have been introduced into Lake Gusinoe or have invaded the lake, and at least six of the native species have disappeared or are in danger of extinction. From our recent investigations, the present environment of the Lake Gusinoe Basin (Gusinoozersk Basin) is divided into four zones hydrogeochemically: (1) ultrafreshwater, (2) freshwater, (3) mineralized water, and (4) hyposaline and saltwater. Some additional data on changes of the chemical components of the drainage basin waters, as well as on the transition of zooplankton and zoobenthic fauna, are presented in consideration of the risk of industrial development, and the perspectives are discussed.