东洞庭湖世界涉危鸟类多样性的分析研究

为了探讨湿地自然保护区综合措施的实施对鸟类多类性的影响,本文分析比较了东洞庭湖自1992年加入国际《湿地公约》后,在1992-1996年间世界濒危鸟类多样性的动态变化。自1992年加入国际《湿地公约》后,尽管对洞庭湖湿地及其内栖息的生物采取了诸多保护措施,但仍发现世界濒危鸟类多样性的值并未如人们所期望迅速有所回升,而是呈弱递减趋势。东洞庭湖湿地的世界濒危鸟类多样性大小状况为:1992-1993>1993-1994>1994-1995>1995-1996。因为湿地环境的客观改善勿容质疑,为此得出结论:鸟类多样性的恢复存在滞缓期。并且作者对退化湿地生态系统的恢复途径进行了讨论,提出合理化建议:(1)应该根据湿地演替的规律进行认为辅助演替。(2)保证湿地环境的稳定性,增加净生产力,使鸟类的基础饵料丰富充足。

A resultant study of Bird's diversity protection of East Dongting Lake

In order to understand the impact of integrated measures on Bird's diversity of freshwater lake ecosystem, a study was carried out to compare the Endangered Bird's diversity of East Dongting lake about 5 years since this area joined Ramsar convention in 1992. It was found that the endangered Bird's diversity of East Dongting Lake was unobservable decreasing, not was recovering fast as the expectation, and despite a series of measures was actualized. The endangered Bird's diversity of East Dongting lake displayed: 1992-1993>1993 - 1994> 1994 - 1995 > 1995 - 1996. It was not unbelievable that the environment of East Dongting lake was actually recovering, so we can make results as follows: There is a lag phase during the restoration of Bird's Diversity. And the appropriate suggestions were given as follows also: (1) The human assistant succession is ought to be actualized according to orderliness of succession. (2)Ensure to protect the stability of wetland, increase the net productivity, make the living food of birds enough.