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扎龙湿地是我国北方典型的芦苇沼泽湿地。本研究通过查阅文献资料,综述已有研究成果,旨在为扎龙湿地保护工作的开展提供科学性依据。研究结果表明:扎龙湿地正面临植被严重退化、面积迅速萎缩和生产力急剧下降等生态风险。扎龙湿地表层沉积物重金属含量基本呈现西北高,东南低的趋势。同时,扎龙湿地生态系统脆弱性表现较为明显,中度脆弱和重度脆弱地区占总面积的18%,潜在脆弱和微度脆弱地区占总面积的63%。
Zhalong Wetland is a typical reed marsh in northern China. In this study, through reviewing the literature and reviewing the existing research results, this study aims to provide a scientific basis for the protection of the Zhalong wetland. The results show that: Zhalong Wetland is facing a serious degradation of vegetation, area rapidly shrinking and sharp decline in productivity and other ecological risks. The contents of heavy metals in the surface sediments of Zhalong wetland basically show a trend of high in the northwest and low in the southeast. At the same time, the vulnerability of the Zhalong wetland ecosystem is more obvious, with moderately vulnerable and severely weakened areas accounting for 18% of the total area and potentially vulnerable and slightly fragile areas accounting for 63% of the total area.