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Assessing the collapse risk of Stipa bungeana grassland in China based on its distribution changes

文献类型：期刊论文

作者Qiao, Xianguo1; Guo, Ke1; Li, Guoqing5,6; Zhao, Liqing2,4; Li, Frank Yonghong2,4; Gao, Chenguang
刊名JOURNAL OF ARID LAND
出版日期2020
卷号12期号:2页码:303-317
关键词climate change limiting factors maximum entropy algorithm potential distribution realizable distribution
ISSN号1674-6767
DOI10.1007/s40333-020-0121-7
文献子类Article
英文摘要The criteria used by International Union for Conservation of Nature (IUCN) for its Red List of Ecosystems (RLE) are the global standards for ecosystem-level risk assessment, and they have been increasingly used for biodiversity conservation. The changed distribution area of an ecosystem is one of the key criteria in such assessments. The Stipa bungeana grassland is one of the most widely distributed grasslands in the warm-temperate semi-arid regions of China. However, the total distribution area of this grassland was noted to have shrunk and become fragmented because of its conversion to cropland and grazing-induced degradation. Following the IUCN-RLE standards, here we analyzed changes in the geographical distribution of this degraded grassland, to evaluate its degradation and risk of collapse. Past (1950-1980) distribution areas were extracted from the Vegetation Map of China (1:1,000,000). Present realizable distribution areas were equated to these past areas minus any habitat area losses. We then predicted the grassland's present and future (under the Representative Concentration Pathway 8.5 scenario) potential distribution areas using maximum entropy algorithm (MaxEnt), based on field survey data and nine environmental layers. Our results showed that the S. bungeana grassland was mainly distributed in the Loess Plateau, Hexi Corridor, and low altitudes of the Qilian Mountains and Longshou Mountain. This ecosystem occurred mainly on loess soils, kastanozems, steppe aeolian soils and sierozems. Thermal and edaphic factors were the most important factors limiting the distribution of S. bungeana grassland across China. Since 56.1% of its past distribution area (4.9x10(4) km(2)) disappeared in the last 50 a, the present realizable distribution area only amounts to 2.2x10(4) km(2). But only 15.7% of its present potential distribution area (14.0x10(4) km(2)) is actually occupied by the S. bungeana grassland. The future potential distribution of S. bungeana grassland was predicted to shift towards northwest, and the total area of this ecosystem will shrink by 12.4% over the next 50 a under the most pessimistic climate change scenario. Accordingly, following the IUCN-RLE criteria, we deemed the S. bungeana grassland ecosystem in China to be endangered (EN). Revegetation projects and the establishment of protected areas are recommended as effective ways to avert this looming crisis. This empirical modeling study provides an example of how IUCN-RLE categories and criteria may be valuably used for ecosystem assessments in China and abroad.
学科主题Environmental Sciences
出版地HEIDELBERG
电子版国际标准刊号2194-7783
WOS关键词CLIMATE-CHANGE ; LOESS PLATEAU ; SPECIES DISTRIBUTIONS ; TIBETAN PLATEAU ; VEGETATION DISTRIBUTION ; MAXIMUM-ENTROPY ; ELEVATED CO2 ; HABITAT ; CLASSIFICATION ; PRECIPITATION
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000521658400002
出版者SPRINGER HEIDELBERG
资助机构National Key Basic Research Program of ChinaNational Basic Research Program of China [2015FY210200] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA19050402] ; Assessment Methods for Red List of Ecosystems in China Program of the Ministry of Ecology and Environment of China ; Characteristic Analysis of Important Ecosystems in China Program of the Chinese Research Academy of Environmental Sciences
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/21847]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Inner Mongolia Univ, Sch Ecol & Environm, Minist Educ, Key Lab Ecol & Resource Use Mongolian Plateau, Hohhot 010021, Peoples R China
3.Inner Mongolia Univ, Sch Ecol & Environm, Inner Mongolia Key Lab Grassland Ecol, Hohhot 010021, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
5.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Qiao, Xianguo,Guo, Ke,Li, Guoqing,et al. Assessing the collapse risk of Stipa bungeana grassland in China based on its distribution changes[J]. JOURNAL OF ARID LAND,2020,12(2):303-317.
APA Qiao, Xianguo,Guo, Ke,Li, Guoqing,Zhao, Liqing,Li, Frank Yonghong,&Gao, Chenguang.(2020).Assessing the collapse risk of Stipa bungeana grassland in China based on its distribution changes.JOURNAL OF ARID LAND,12(2),303-317.
MLA Qiao, Xianguo,et al."Assessing the collapse risk of Stipa bungeana grassland in China based on its distribution changes".JOURNAL OF ARID LAND 12.2(2020):303-317.

入库方式： OAI收割

来源：植物研究所

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