安固里淖湿地生态退化的初步研究

STUDIES ON THE DEGRADATION OF ECOLOGICAL ENVIRONMENT IN ANGULI-LAKE WETLAND

本文以封闭的内陆湿地安固里淖为研究对象,研究了湿地退化对植被、小气候、土壤生态因子的影响。封育沼泽、放牧沼泽地、退化沼泽地3种类型湿地植被的群落依次向旱生结构过渡,群落多样性特征降低,封育是恢复湿地植被的可行措施;退化湖泊裸地较草地、沼泽地具有温差变化大、空气湿度小的特点,其气候调节能力降低,土壤盐度高,易于发生"盐暴"现象。

According to the studies on the Anguli - lake of continental wetland, analysis the effects on vegetaion, micro climate and soil of the degraded environment. The results showed that vegetaion distribution varies to xerophilous, and biadiversity reduced from enclosed swamp, grazing swamp to degraded swamp. The temperature change largly and fastly, air humidity is lower in the bare land compared to the grassland and swamp. The ability of regulating climate is decreased, the salinity of soil is increased , and the phenomenon of salt - storm is produced easily. The way that enclosed vagetaion is feasible to recover ecological environment of wetland is put forword in this paper.