生态学报2018，Vol.38Issue(11)：3909-3919,11.DOI:10.5846/stxb201705090855
中国季节性昼夜增温的不对称性及其对植被活动的影响
Asymmetric seasonal variability in day-and night-time warming and their effects on vegetation activity in China
摘要
Abstract
This study examines asymmetric variations in day-and night-time warming using a least squares linear regression analysis,and characterizes the different effects of seasonally asymmetric warming on vegetation activities in China using a two-order partial correlation analysis method.Using normalized difference vegetation index,vegetation type,and meteorological data,the following results were obtained.(1) There was a significant trend of day-and night-time warming during the growing season from 1982 to 2015.Day-and night-time warming rates were seasonally asymmetric:the day-time warming rate in spring,summer,autumn,and winter was 1.49,0.98,0.73,and 1.69 times higher,respectively,than that at night.(2) Day-time warming had a significantly greater and more extensive impact on vegetation than night-time warming.The areas affected by asymmetric seasonal warming in spring and winter were larger than those in summer and autumn.(3) Different vegetation types responded differently to seasonal asymmetry in day-and night-time warming,and the degree of responses varied distinctly between different seasons.This analysis of seasonal variations in day-and night-time warming and the impacts of seasonal warming on different types of vegetation directly contributes to our understanding of the local and regional effects of warming on terrestrial vegetation in China within the context of global climate change.关键词
昼夜增温/不对称变化/植被活动/气候变化/中国Key words
Day-and night-time warming/asymmetric variability/vegetation activity/climate change/China引用本文复制引用
赵杰,杜自强,张红,张霄羽,赵虹..中国季节性昼夜增温的不对称性及其对植被活动的影响[J].生态学报,2018,38(11):3909-3919,11.基金项目
国家自然科学基金项目(41161066,41401643,41401053) （41161066,41401643,41401053）
山西省十二五科技重大专项(20121101011) （20121101011）
