Evolution of Potential Spatial Distribution Patterns of Carex Tussock Wetlands Under Climate Change Scenarios,Northeast China  

作　　者：QI Qing ZHANG Mingye TONG Shouzheng LIU Yan ZHANG Dongjie ZHU Guanglei LYU Xianguo 

机构地区：[1]Key Laboratory of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecolog,Chinese Academy of Sciences,Changchun,Jilin 130102,China [2]Shijiazhuang University,Shijiazhuang,Hebei 050035,China [3]Binzhou University,Binzhou,Shandong 256600,China

出　　处：《Chinese Geographical Science》2022年第1期142-154,共13页中国地理科学（英文版）

基　　金：Under the auspices of the National Natural Science Foundation of China(No.41871101);the Science and Technology Development Project of Jilin Province(No.20190201115JC);the‘Strategic Priority Research Program’of the Chinese Academy of Sciences(No.XDA23060402)。

摘　　要：Carex tussock plays an important role in supporting biodiversity and carbon sequestration of wetland ecosystems,while it is highly threatened by climate change and anthropogenic activities.Therefore,identifying the potential distribution patterns of Carex tussocks wetland is vital for their targeted conservation and restoration.The current and future(2050s and 2070s)potential habitats distribution of Carex tussocks in Northeast China were predicted using a Maximum Entropy(Maxent)model based on 68 current data of Carex tussock distributions and three groups of environmental variables(bioclimate,topography,soil properties).Results show that isothermality,seasonal precipitation variability and altitude are important factors that determine the distribution of Carex tussock.The high suitable habitat of Carex tussock is about 5.7×10^(4)km^(2) and mainly distributed in the Sanjiang Plain,Songnen Plain,Changbai Mountains and Da Hinggan Mountains.The area of stable habitats of Carex tussock is significantly higher than the lost and expanded habitats in the future climate scenarios,and the unsuitable habitats mainly occur in Da Hinggan Mountains,Xiao Hinggan Mountains and Changbai Mountains.Overall,Carex tussock wetlands at high altitude and high latitude are more sensitive to climate change,and more attention should be invested in high latitude and high altitude areas.

关 键 词：Carex tussock wetland spatial distribution climate change Maxent model suitable habitat 

分 类 号：X171.1[环境科学与工程—环境科学] P467[天文地球—大气科学及气象学] Q948[生物学—植物学]