Spatio-temporal patterns and climatic drivers of spring phenology in eight forest communities across the north-south transitional zone of China  

作　　者：ZHU Wenbin LU Yu 

机构地区：[1]Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing,100101,China [2]School of Geographical Science,Nanjing University of Information Science&Technology,Nanjing,210044,China

出　　处：《Journal of Geographical Sciences》2025年第1期17-38,共22页地理学报(英文版)

基　　金：National Key Research and Development Program of China,No.2023YFE0208100,No.2021YFC3000201;Natural Science Foundation of Henan Province,No.232300420165。

摘　　要：The Qinba Mountains are climatically and ecologically recognized as the north-south transitional zone of China.Analysis of its phenology is critical for comprehending the response of vegetation to climatic change.We retrieved the start of spring phenology(SOS)of eight forest communities from the MODIS products and adopted it as an indicator for spring phenology.Trend analysis,partial correlation analysis,and GeoDetector were employed to reveal the spatio-temporal patterns and climatic drivers of SOS.The results indicated that the SOS presented an advance trend from 2001 to 2020,with a mean rate of−0.473 d yr^(−1).The SOS of most forests correlated negatively with air temperature(TEMP)and positively with precipitation(PRE),suggesting that rising TEMP and increasing PRE in spring would forward and delay SOS,respectively.The dominant factors influencing the sensitivity of SOS to climatic variables were altitude,forest type,and latitude,while the effects of slope and aspect were relatively minor.The response of SOS to climatic factors varied significantly in space and among forest communities,partly due to the influence of altitude,slope,and aspect.

关 键 词：spring phenology climatic drivers altitude forest communities lag effect Qinba Mountains 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]