干旱区生态环境知识资源中心(Arid): 气候变化下中国潜在植被演替及其敏感性

Arid

	气候变化下中国潜在植被演替及其敏感性
其他题名	The succession of potential vegetation in China and its sensitivity under climate change
	杜怀玉; 赵军; 师银芳; 车彦军
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:5 页码:1459-1466
中文摘要	潜在植被的研究能够真实反映气候条件对植被形态变化的影响,是植被-环境分类与关系研究的起点,也是全球变化与陆地生态系统研究的关键,对区域植被生态的恢复和重建具有重要的指导意义。本研究基于综合顺序分类系统,对过去30年(19862015年)和IPCC5发布的RCP4.5情景下未来3个时期(2030s、2050s和2080s)潜在植被的空间分布进行了GIS模拟,并分析了潜在植被对气候变化响应的敏感性。结果表明: (1)中国分布的潜在植被类型数量及各类在不同时期所占比例均存在差异,同时炎热极干热带荒漠类(VIIA)为各个时期共同缺失的潜在植被类型。(2)潜在植被的分布面积整体上呈现出冷干型潜在植被类型面积逐渐减少、暖湿型潜在植被类型面积逐渐增加的趋势,具体表现为扩展型、缩减型和波动型3类;潜在植被类组的重心发生了不同方向、不同距离的移动变化。(3)中国潜在植被对气候变化的响应存在敏感性差异,其空间分布形态总体呈现出不同敏感性程度的区域相间分布的特点。敏感性高的区域、敏感性较高的区域和敏感性较低的区域分别占国土总面积的2.28%、14.39%和43.82%。
英文摘要	The study of potential vegetation can reveal the impacts of climate on vegetation. It is the starting point for studying vegetation-environmental classification and relationships,and the key point for studying global change and terrestrial ecosystems. It has guiding significance for the restoration and reconstruction of regional vegetation. Using the comprehensive sequential classification system (CSCS),we carried out a GIS simulation study on the spatial distribution of potential vegetation in China in the past 30 years (1986-2015) and the future three periods (2030s, 2050s and 2080s) under the RCP4.5 scenarios issued by IPCC5,and analyzed its sensibility to climate change. The results showed that: (1) Differences existed in the number of potential vegetation classes and the proportion of each class in different periods. The tropical-extrarid tropical desert (VIIA) was commonly absent in all periods. (2) With respect to the distribution area of potential vegetation,the area of cold-dry potential vegetation decreased whereas that of warmhumid potential vegetation increased,with extension,reduction and fluctuation being the three typical variation patterns. Moreover,the gravity centers of potential vegetation categories moved in different directions and at different distance. (3) The sensitivity of potential vegetation to climate change differed,with different sensitivity regions showing an interphase distribution. The distribution areas of regions with the highest,higher,and lower sensitivity accounted for 2.28%, 14.39% and 43.82% of the total national area,respectively.
中文关键词	潜在植被 ; 综合顺序分类系统(CSCS) ; 气候变化 ; 敏感性 ; GIS模拟
英文关键词	potential vegetation comprehensive sequential classification system (CSCS) climate change sensitivity GIS simulation
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:6238872
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238189
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	杜怀玉,赵军,师银芳,等. 气候变化下中国潜在植被演替及其敏感性[J]. 西北师范大学,2018,37(5):1459-1466.
APA	杜怀玉,赵军,师银芳,&车彦军.(2018).气候变化下中国潜在植被演替及其敏感性.生态学杂志,37(5),1459-1466.
MLA	杜怀玉,et al."气候变化下中国潜在植被演替及其敏感性".生态学杂志 37.5(2018):1459-1466.