摘要
2008年在内蒙古达赉湖地区蒙原羚(Procapra gutturosa)生境考察基础上,以植被类型、植被盖度、坡度、距水源距离、距放牧点距离、距居民点距离、距道路距离为生境适宜性评价因子,利用3S技术和模糊赋值对蒙原羚生境适宜度进行评价。结果表明:在不考虑人为干扰时,蒙原羚的最适宜生境面积占总面积的17.7%,次适宜生境面积占总面积的36.9%,不适宜生境面积占总面积的45.4%;考虑人为干扰时蒙原羚的最适宜生境面积占总面积的13.0%,次适宜生境面积占总面积的28.3%,不适宜生境面积占总面积的58.7%;研究地区蒙原羚实际生境和潜在生境相比,不适宜生境面积增加了29.2%,表明人为干扰是内蒙古达赉湖地区蒙原羚适宜生境急剧减少的主要原因。
Based on the survey of Mongolian gazelle （Procapra gutturosa） habitats around the Dalai Lake area of Inner Mongolia in 2008, the vegetation type, vegetation coverage, slope, distance from water, distance to grazing point, distance to residential area, and distance to road were selected as the factors for the assessment of habitat suitability, and the 3S technique and fuzzy evaluation were adopted to assess the habitat suitability of the Mongolian gazelle around the Dalai Lake area. Without considering human disturbance, the most suitable, less suitable, and unsuitable habitat areas for Mongolian gazelle were 17.7%, 36.9%, and 45.4% of the total, respectively; with the consideration of human disturbances, the most suitable, less suitable, and unsuitable habitat areas for Mongolian gazelle reduced to 13.0%, 28.3%, and 58.7% of the total, respectively. The comparison of the actual and potential habitats of the Mongolian gazelle showed that the unsuitable habitat area was increased by 29.2%, suggesting that human disturbance could be the main cause of the sharp decrease of suitable habitat for Mongolian gazelle around the Dalai Lake area of Inner Mongolia.
出处
《生态学杂志》
CAS
CSCD
北大核心
2012年第10期2568-2572,共5页
Chinese Journal of Ecology
基金
国家自然科学基金项目(30700075)
十一五国家科技支撑计划课题(2008BADB0B01)
东北林业大学研究生论文项目(GRAM09)资助
关键词
达赉湖
蒙原羚
生境适宜度
人为干扰
Dalai Lake
Mongolian gazelle
habitat suitability
human disturbance.
