安吉县中华鬣羚栖息地适宜性现状分析  

Analysis of the Current Habitat Suitability of Chinese Serow in Anji County

作　　者：肖畅 潘德寿 朱秀芳 黄勇 何莹 徐俊锋[4,5] Xiao Chang;Pan Deshou;Zhu Xiufang;Huang Yong;He Ying;Xu Junfeng(State Key Laboratory of Remote Sensing Science,Beijing Normal University,Beijing 100875,China;Institute of Remote Sensing Science and Engineering,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China;Anji Natural Resource Protection Center,Huzhou 313300,China;Institution of Remote Sensing and Earth Sciences,Hangzhou Normal University,Hangzhou 311121,China;Zhejiang Key Laboratory of Urban Wetland and Regional Change,Hangzhou 311121,China)

机构地区：[1]北京师范大学遥感科学国家重点实验室,北京100875 [2]北京师范大学地理科学学部遥感科学与工程研究院,北京100875 [3]安吉县自然资源保护中心,湖州313300 [4]杭州师范大学遥感与地球科学研究院,杭州311121 [5]浙江省城市湿地与区域变化研究重点实验室,杭州311121

出　　处：《陆地生态系统与保护学报》2024年第3期49-57,共9页Terrestrial Ecosystem and Conservation

摘　　要：【目的】中华鬣羚(Capricornis milneedwardsii)是国家二级保护野生动物,评价安吉县中华鬣羚栖息地的适宜性,对于保护县内中华鬣羚有重要的意义和价值。【方法】基于2020年Sentinel-2遥感图像,通过随机森林算法分类得到安吉县土地覆盖现状图,进一步结合气候、地形、植被、人类干扰等环境要素以及中华鬣羚出现的位置数据,使用MaxEnt物种分布模型评价安吉县的中华鬣羚栖息地适宜性。【结果】1)安吉县适宜中华鬣羚栖息的区域集中在县域南部地区,面积较小,中等及以上适宜区域仅占全县域总面积的9.06%,而78.19%的区域都不适宜中华鬣羚栖息;2)适宜性在中等及以上的区域的斑块数量和斑块密度均较低,平均斑块分维数均在1.05左右,周长面积分维数均小于1.40,说明这些区域受到人类干扰较小。3)与适宜性水平较低区域的林地相比,中等及以上适宜区的阔叶林占比更高,林地斑块密度、景观形状指数较低,表明适宜性水平较高的林地受人类活动的干扰更小。【结论】研究结果表明目前安吉县内仅有南部少量地区适宜中华鬣羚栖息,主要由于栖息地内部受人类活动影响较少,未来应持续关注和保护。【Objective】The Chinese Serow(Capricornis milneedwardsii),a nationally second-class protected wild animal.Evaluating the habitat suitability of the Chinese Serow in Anji County is of significant importance and value for its conservation within the county.【Method】Based on the 2020 Sentinel-2 remote sensing images,the land cover map of Anji County was generated through a random forest classification algorithm.This map was then combined with occurrence data of the Chinese Serow and environmental factors including climate,topography,vegetation and human disturbance,to assess the habitat suitability using the MaxEnt model.【Result】1)The areas suitable for Chinese Serow habitat in Anji County are concentrated in the southern region,covering relatively small areas.Regions with medium or higher suitability account for only 9.06%of the total area of the county,while 78.19%of the total area of the county is unsuitable for Chinese Serow habitat.2)The number and density of patches in areas with moderate or high suitability are relatively low,with an average fractal dimension of around 1.05 and a perimeter-area fractal dimension of less than 1.40,indicating that these areas are less affected by human interference.3)Compared with forests in areas with lower suitability levels,broad-leaved forests in moderate and higher suitability areas have a higher proportion,lower patch density,and landscape shape index,indicating that forests with higher suitability levels are less affected by human activities.【Conclusion】The study results shows that currently only a small area in the southern part of Anji County is suitable for the habitat of Chinese Serow,mainly due to the relatively low impact of human activities within the habitat.It should be continuously monitored and protected in the future.

关 键 词：中华鬣羚 MaxEnt模型 栖息地 适宜性分析 

分 类 号：Q958[生物学—动物学]