长江流域资源与环境 >> 2018, Vol. 27 >> Issue (01): 41-.doi: 10.11870/cjlyzyyhj201801008

• 自然资源 • 上一篇    下一篇

升金湖湿地时空演变对越冬鹤类种群动态的影响

叶小康,董  斌*,王  成,黄  慧,陈凌娜,朱  鸣,彭文娟,周  强   

  1. (安徽农业大学理学院,安徽 合肥 230036)
  • 出版日期:2018-01-20

#br# Effects of Spatiotemporal Changes of Shengjin Lake Wetland on the Dynamics of Wintering Cranes Population

YE Xiaokang,DONG Bin, WANG cheng,HUANG hui,CHEN Lingna,ZHU Ming,PENG Wenjuan,ZHOU Qiang   

  1. (School of Science,Anhui Agricultural University,Hefei 230036, China)
  • Online:2018-01-20

摘要: 升金湖湿地是我国主要的鹤类越冬栖息地之一。研究升金湖湿地时空变化对越冬鹤类种群动态的影响在湿地生态环境改善、鹤类种群恢复等方面具有重要参考价值。对1986~2015年升金湖湿地白头鹤(Grus monacha)、白鹤(Grus leucogeranus)、灰鹤(Grus grus)及白枕鹤(Grus vipio)种群数量的变化趋势分别进行了曲线拟合;结合升金湖湿地1986~2015年间8期遥感影像分析了研究区土地利用/覆盖的时空变化;并探讨了湿地时空变化与越冬鹤类种群数量变化之间的相关性。结果表明:1986~2015年间,研究区的景观格局发生了较大变化,草地、水田、滩涂及其他用地的面积总体呈增加态势,而林地、旱地、水域及芦苇沼泽地面积总体呈减少的态势;4种鹤类的数量总体呈下降趋势,曲线拟合中白鹤和白枕鹤种群数量变化的趋势方程拟合度较高;芦苇沼泽地及水域面积变化与越冬鹤类种群数量呈显著的正相关关系,而草地、滩涂及水田的面积与鹤类种群数量呈较强的负相关关系;其他景观面积变化间接对鹤类种群数量产生影响。
关键词: 时空变化;鹤类;遥感影像;土地利用/覆盖;升金湖

Abstract: Shengjin lake wetland is one of important winter habitats for cranes in China. How the wetland spatiotemporal changes affect the winter cranes population dynamics has important significance for the wetland ecology, and crane population’s restoration. In this study, we analyzed four species cranes (Grus monacha, G. leucogeranus, G. grus and G. vipio) yearly observed amount variations between 1986 and 2015, and fit the curves between the cranes amount variations and year’s changes. Furthermore, the spatiotemporal changes of the wetland landuse were presented through the remote sensing images, the correlations between wetland spatiotemporal changes and crane amount changes were also identified. The results show this region landscape patterns had changed greatly between 1986 and 2015. The areas of grassland, paddy field, beach and some others were increasing, whereas the forest land, dry land, water area and reed marsh areas were declining. The four species cranes observed amounts generally decreased year by year. G. leucogeranus and G. vipio amounts had similar change patterns in the period. The space changes of reed marsh and water areas exhibited significantly positive relations with the crane’s amount variations, whereas the grassland, the beach and paddy field changes presented significantly negative relations with the crane’s amount variations. Other land use might also have indirect effects on the crane changes in this region.

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