摘要
采用定点监测的方法,对西洞庭湖越冬水鸟多样性及空间分布进行调查。结果表明:2013—2020年保护区内越冬水鸟数量在明显增多,其中食沉水植物鸟类增加是主要原因。这表明通过实行生态修复工程,西洞庭湖生态环境得到不断改善。每年10月—12月西洞庭湖水鸟数量增多,为进入水鸟越冬期阶段,1月—3月随着水鸟数量下降,为结束水鸟越冬期阶段。保护区冬季越冬水鸟栖息分布与鸟类食物呈正相关,食物资源越多,鸟类多样性越高,同时人为干扰能明显降低栖息地鸟类多样性。水位动态变化能通过影响栖息地面积,植物生长状况,从而对水鸟栖息地分布变化产生影响。
In thisstudy,the diversity and spatial distribution of wintering waterfowl in West Dongting Lake were investigated by using the method of fixed-point monitoring.The resultsshowed that the number of wintering waterfowl in the reserve from 2013 to 2020 had increased significantly.The main reason wasthe increase in birdsthat eat submerged plants,indicating that the ecological environment of West Dongting Lake had been continuously improved through the implementation of ecological restoration projects.The number of waterfowl in West Dongting Lake increased from October to December each year,which wasto enter the waterfowl overwintering period.The number of waterfowl decreased from January to March,which wasto end the waterfowl overwintering period.The habitat distribution of wintering waterfowl in the reserve in winter waspositively correlated with bird food.The more food resources,the higher the bird diversity.At the same time,human disturbance can significantly reduce the habitat bird diversity.The dynamic change of water level can affect the distribution of waterfowl habitat by affecting the area of habitat and the growth of plants.
作者
曾益波
彭波涌
彭平波
阳俭
何木盈
曾伟坤
刘鹏
谢志辉
ZENG Yibo;PENG Boyong;PENG Pingbo;YANG Jian;HE Muying;ZENG Weikun;LIU Peng;XIE Zhihui(Hunan West Dongting Lake National Nature Reserve Administration,Changde 415907,Hunan,China)
出处
《湖南林业科技》
2020年第6期37-46,共10页
Hunan Forestry Science & Technology
基金
湖南省林业科技创新专项“西洞庭湖湿地生态保护与修复长期科研试验基地项目”(XLK201963)。
关键词
越冬水鸟
多样性
空间分布
西洞庭湖
wintering waterfowl
diversity
distribution pattern
West Dongting Lake
