中国东部季风区植被气候生产潜力的时空特征  

Spatio-temporal Characteristics of Climate Production Potential of Vegetation in Eastern Monsoon Region of China

作　　者：李涛辉 尹鹏飞 吕爱锋[2] 张文翔[1] 尹继清 熊静 刘永毫 Li Taohui;Yin Pengfei;LüAifeng;Zhang Wenxiang;Yin Jiqing;Xiong Jing;Liu Yonghao(Key Laboratory of Plateau Geographic Processes and Environment Change of Yunnan Province,Yunnan Normal University,Kunming 650500,P.R.China;Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographic Sciences and Natural Resources Research,CAS)

机构地区：[1]云南省高原地理过程与环境变化重点实验室(云南师范大学),昆明650500 [2]中国科学院陆地水循环及地表过程重点实验室(中国科学院地理科学与资源研究所)

出　　处：《东北林业大学学报》2023年第10期62-69,91,共9页Journal of Northeast Forestry University

基　　金：第三次新疆综合科学考察专项(2021xjkk0203);云南师范大学研究生科研创新基金项目(YJSJJ23-B142)。

摘　　要：以中国东部季风区为研究区域、植被气候生产潜力为研究对象,以英国东英格利亚大学气候研究所公布的气候变化数据库(CRU TS v.4.06)中0.5°×0.5°月尺度时空分辨率的降水和气温数据集的气象数据(时间尺度为1981—2021年)、中山大学陆-气相互作用研究组2013年开发的中国陆地表面土壤数据库的土壤数据为数据源,采用迈阿密模型(Miami)、桑斯威特纪念模型(Thomthwaite Memorial)分析1981—2021年中国东部季风区植被气候生产潜力的时空特征,采用冗余分析(RDA)法分析植被气候生产潜力与土壤理化性质相关性。结果表明:过去40a,中国东部季风区气温生产潜力、降水生产潜力、蒸散生产潜力的时间演变,均分为2个阶段,气温生产潜力的第Ⅰ阶段为1981—2001年、第Ⅱ阶段为2002—2021年,降水生产潜力的第Ⅰ阶段为1981—2014年、第Ⅱ阶段为2014—2021年,蒸散生产潜力的第Ⅰ阶段为1981—2013年、第Ⅱ阶段为2013—2021年,2个阶段均呈现出生产潜力增加趋势,其中第Ⅱ阶段生产潜力增加幅度显著高于第Ⅰ阶段。气温生产潜力、降水生产潜力和蒸散生产潜力均存在1个22 a的显著周期转变,敏感性分析显示气温和降水均对蒸散生产潜力有显著正相关影响。在空间上,气温生产潜力、降水生产潜力、蒸散生产潜力,都呈现出从华南地区往东北地区递减的趋势,且第Ⅱ阶段植被气候生产潜力的增速显著高于第Ⅰ阶段,第Ⅱ阶段增速显著的区域多出现在高值区。冗余分析结果显示,东部季风区土壤表层理化性质对降水生产潜力、蒸散生产潜力有显著抑制作用,对气温生产潜力有显著的促进作用。Taking the monsoon region of eastern China,and the climatic production potential of vegetation,the data sources were from the 0.5°×0.5°monthly spatiotemporal resolution precipitation and temperature dataset(1981-2021)in the Climate Change database published by the Climate Research Institute of the University of East Anglia(CRU TS v.4.06)(http://www.cru.uea.ac.uk/data/)and the soil data of the China Land Surface Soil Database developed by the Research group of Land-Atmosphere Interaction at Sun Yat-sen University in 2013.The Miami model and the Thomthwaite Memorial model were used to analyze Spatio-temporal characteristics of the climate production potential of vegetation in the eastern monsoon region of China from 1981 to 2021,and redundancy analysis(RDA)was used to analyze the correlation between vegetation climatic potential production and chemical and physical properties of soil.In the past 40 years,the temperature production potential,precipitation production potential and evapotranspiration production potential in the eastern monsoon region of China were divided into two stages.The stage I of temperature production potential was from 1981 to 2001,and the second stage II was from 2002 to 2021.The stage I of precipitation production potential was from 1981 to 2014,and the second stage II was from 2014 to 2021.The stage I of evapotranspiration production potential was from 1981 to 2013,and the second stage II was from 2013 to 2021.The production potential of the two stages showed an increasing trend,and the increase of the production potential of the stage II was significantly higher than that of the stage I.The temperature production potential,the precipitation production potential and the evapotranspiration production potential all had a period of 22 years.Sensitivity analysis showed that there was a significant positive correlation between temperature and precipitation on the evapotranspiration production potential.In terms of spatial distribution,the temperature production potential,the precipitation pro

关 键 词：中国东部季风区 植被气候生产潜力 陆地植被生态系统 土壤理化性质 时空特征 

分 类 号：S718.5[农业科学—林学] Q948.1[生物学—植物学]