Inconsistent increasing of climate potential productivity resulting from global warming and land use transitions in the Dongting Lake Basin,from 2000 to 2020  

作　　者：WANG Ji-ren ZHENG Jian SU Jian ZHENG Bo-hong SUN Zhao-qian 

机构地区：[1]School of Architecture and Art,Central South University,Changsha 410083,China [2]School of Architecture,Changsha University of Science and Technology,Changsha 410114,China [3]School of Architecture,South China University of technology,Guangzhou 510640,China

出　　处：《Journal of Mountain Science》2023年第7期1954-1967,共14页山地科学学报（英文）

基　　金：funded by the National Natural Science Foundation of China(Grant No.72174211);the Natural Science Foundation of Hunan Province(Grant No.2023JJ30693)。

摘　　要：In the face of global warming and increasing impervious surfaces,quantifying the change of climate potential productivity(CPP)is of great significance for the food production planning.Targeting the Dongting Lake Basin,which is a key area for food production in China,this paper uses meteorological data,as well as Climate Change Initiative Land Cover,and Shuttle Radar Topography Mission digital elevation model to investigate the CPP and its changes from 2000 to 2020.The suitability of land for cultivation(SLC),and the land use/land cover change(LUCC)are also considered.The results showed that the CPP varied from 9,825 to 20,895 kg ha^(-1).Even though the newly added impervious surfaces indirectly resulted in the decrease of CPP by of 9.81×10~8 kg,overall,the CPP increased at an average rate of 83.7 kg ha^(-1)a^(-1).Global warming is the strongest driver behind CPP increase,and CPP has played an important role in the conversions between cultivated land and other land types.The structure of land types tends to be optimized against this challenge.

关 键 词：Land cultivation Land use/land cover change Climate potential productivity Global warming Dongting Lake Basin 

分 类 号：P46[天文地球—大气科学及气象学]