干旱区生态环境知识资源中心(Arid): 气候变化对梭梭植物适宜分布的影响

Arid

	气候变化对梭梭植物适宜分布的影响
其他题名	The impacts of climate change on the potential distribution of Haloxylon ammodendron
	马松梅 1; 魏博 1; 李晓辰 1; 罗冲 1; 孙芳芳 2
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2017
卷号	36 期号:5 页码:1243-1250
中文摘要	分析气候变化对植物分布的影响,对保护生物多样性有重要的现实意义。基于梭梭(Haloxylon ammodendron)的分布点数据和环境因子数据,利用最大熵(MAXENT)模型和GIS工具估计其在基准(19611990)及2050(20412060)和2070(20612080)时段基于RCPs气候情景下的潜在分布范围、空间格局及其变化。结果表明:(1)基准气候下,梭梭的分布主要集中在我囯西北干旱区,尤其是新疆地区:古尔班通古特沙漠,塔里木盆地西端、北缘;内蒙古阿拉善左旗、东阿拉善;甘肃河西走廊;宁夏西部、北部;青海柴达木盆地东部和南部。在蒙古南戈壁省和东戈壁省有少量破碎化分布;(2)年平均降水量、最湿季平均气温、最干季降水量和降水季节性是限制梭梭分布的关键因子,累计贡献率达85.03%; (3)2050和2070时段,梭梭的适宜分布范围将显著增加,仅在塔里木盆地西端的分布将破碎、减少;分布范围及重心可能将向西北和东北方向迁移。
英文摘要	Understanding the impacts of climate change on the distribution of plant species is crucial for the conservation of biodiversity. On the basis of distribution data and environmental variables, we used a maximum entropy model (MAXENT) and GIS tools to estimate the potential distribution range, spatial pattern, and change of Haloxylon ammodendron under reference climate and in 2050 and 2070 (according to the RCP2.6 and RCP6.0 scenarios of IPCC). We obtained the following results: (1) The potential distributions under the reference climate were mainly concentrated in the arid areas of northwest China, especially in Xinjiang: Gurbantunggut Desert, the northern margin and western tip of the Tarim Basin,Alax Left Banner and eastern Alax of Inner Mongolia; Hexi Corridor of Gansu Province; western and northern Ningxia; eastern and southern Qaidam Basin in Qinghai Province. Furthermore, small fragmented patches of suitable area were identified in Omnogovi and Dornogovi of Mongolia. (2) Annual precipitation,mean temperature of the wettest quarter, precipitation of the driest quarter and precipitation seasonality (coefficient of variation) mainly limited the distributions of H. ammodendron,and their total cumulative contribution rate was 85.03%. (3) In 2050 and 2070,the range suitable for H. ammodendron would increase significantly, whereas only a few distribution areas in the western tip of the Tarim Basin would fragment and decrease in size. The distribution range and gravity center would shift to northwest and northeast.
中文关键词	典型浓度路径(RCP)情景 ; 分布范围 ; 空间格局 ; MAXENT模型
英文关键词	representative concentration path (RCP) scenario distribution range spatial pattern MAXENT model
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5986933
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236561
作者单位	1.石河子大学理学院, 石河子, 新疆 832000, 中国; 2.石河子大学生命科学学院, 石河子, 新疆 832000, 中国
推荐引用方式 GB/T 7714	马松梅,魏博,李晓辰,等. 气候变化对梭梭植物适宜分布的影响[J]. 石河子大学,2017,36(5):1243-1250.
APA	马松梅,魏博,李晓辰,罗冲,&孙芳芳.(2017).气候变化对梭梭植物适宜分布的影响.生态学杂志,36(5),1243-1250.
MLA	马松梅,et al."气候变化对梭梭植物适宜分布的影响".生态学杂志 36.5(2017):1243-1250.