秦岭重点保护植物丰富度空间格局与热点地区  

Spatial distribution patterns of species richness and hotspots of protected plants in Qinling Mountain

作　　者：张殷波[1] 郭柳琳 王伟[2] 田瑜[2] 李俊生[2] 

机构地区：[1]山西大学环境与资源学院,太原030006 [2]中国环境科学研究院,北京100012

出　　处：《生态学报》2014年第8期2109-2117,共9页Acta Ecologica Sinica

基　　金：国家自然科学青年基金项目(31100392);环保公益性行业科研专项(201209028)

摘　　要：秦岭地区物种资源丰富,是我国重要的生物多样性热点地区之一。以秦岭山系涉及的43个行政县为研究区域,基于重点保护植物的县级分布,并结合垂直分布和生境类型信息获得物种分布区范围,探讨重点保护植物的丰富度空间格局和热点地区。研究结果表明:该地区共包括重点保护植物200种,其中国家一级保护植物20种,国家二级保护植物180种;秦岭重点保护植物丰富度空间格局总体随山体呈东西向递减的条带状分布,东段随着山岭与盆地相间的地形呈扫帚状展开,南坡物种丰富度高于北坡;通过丰富度空间格局确定了3个热点地区,分别是:(1)伏牛-熊耳山地;(2)太白-佛坪山地;(3)天水东南部山地。将热点地区与国家级自然保护区叠加后鉴别出保护空缺地,可为下一步实施科学的生物多样性保护规划提供基础资料。Qinling Mountain with abundant species resources, was considered as one of the most important biodiversity hotspots in China. In this research, 43 administrative counties in Qinling Mountain were chosen as the study areas. Based on distribution of protected plants on the county level, and the species distribution range obtained from the database on vertical distribution and habitat types of the wild plants, spatial distribution patterns of species richness and hotspots of plants under state protection were studied. The results showed that ： （ 1 ） there are 200 state protected plants in Qinling Mountain, among which 20 species were under category [ and 180 species were under category II ; （2） the overall distribution pattern of species richness is a zonal distribution along the mountain decreasing from east to west of the mountain and unfolding with a broom shape between the mountains and basins in the east of Qinling Mountain. Furthermore, the species richness in the south slope is much higher than that in the north slope; （3） three hotspots were identified by the spatial distribution patterns of species richness, including Funiu-Xiong＇er mountainous region, Taibai-Foping mountainous region and the southeastern mountainous region of Tianshui. The conservation gap can be identified by overlaying the hotpots and the distribution of national nature reserve. Results of this study would provide important basic information for the further scientific biodiversity protection in Qinling Area.

关 键 词：重点保护植物 丰富度 热点地区 空间格局 保护空缺分析 秦岭 

分 类 号：Q948[生物学—植物学]