甘肃安西国家级自然保护区湿地及水禽动态

Dynamic of wetlands and waterfowls in national Anxi Extreme Arid Nature Reserve in Gansu

为了解甘肃安西自然保护区湿地与水鸟动态的关系，在1988～1989年和2002～2004年两次对该湿地水禽进行调查，湿地公布的鸟类108种，其中《湿地公约》定义的水禽有44种，国家保护的Ⅰ级鸟类1种，Ⅱ级保护鸟类1种。2002～2004年记录31种。2002～2004年较1988～1989年增加5种新纪录，但减少13种。2002～2004年仅秋季遇见水鸟的数量29．50只／km2，多于1988～1989年的17．79只km2，同时秋季水鸟种类2002～2004年为20种，也多于1988～1989年的13种，保护区水禽种类和数量变化的一个主要因素是自然和人为的影响，因此，应该制定适宜安西自然保护区的法律法规，加强对保护区水鸟的保护。

The wetlands in Anxi Natural Nature Reserve were natural and artificial. The survey was conducted from 1988 to 1989 and from 2002 to 2004 in order to understand the relationship between waterfowls and wetlands. 44 species of waterfowls included in ＂Wetland Convention＂were found in the wetland. There were 39 species from 1988 to 1989 and 31 species from 2002 to 2004 during two surveys. The 5 new recorded species were found and 13 species were lost based on the survey from 2002 to 2004. During 1988 to 1989, the number and species of waterfowls in autumn were 29.50/km2 and 20 respectively,and they were 17.79/km2 and 13 respectively during 1989 to 1989. The population of waterfowls was affected by the natural and human beings factors,so the relative regulations should be made for better protection.