植被和气候因子对中国陆地蒸散变化的贡献

IF 8 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment Pub Date : 2025-02-12 DOI:10.1016/j.scitotenv.2025.178808

Yibo Xue , Yayong Xue , Meizhu Chen , Yuan Zhang

{"title":"植被和气候因子对中国陆地蒸散变化的贡献","authors":"Yibo Xue , Yayong Xue , Meizhu Chen , Yuan Zhang","doi":"10.1016/j.scitotenv.2025.178808","DOIUrl":null,"url":null,"abstract":"<div><div>Evapotranspiration (ET) is a key component of the global water cycle, integral to the interactions among water, carbon, and energy exchanges between the terrestrial biosphere and the atmosphere. With global warming anticipated to intensify the water cycle, understanding the spatiotemporal characteristics and driving factors of terrestrial ET in China is increasingly critical. This study categorizes China (Total) into arid and semi-arid (ASA) and humid and semi-humid (HSH) sub-regions based on the aridity index (AI) and utilizes the GLEAM (Global Land Evaporation Amsterdam Model) v3.8a dataset to analyze variations in transpiration (T), ET, and the T/ET from 1982 to 2022. Findings reveal distinct interannual variation trends. The average annual T, ET, and T/ET in the Total area show changes of 0.93 mm/a, 1.40 mm/a, and 0.0001/a, respectively. The ASA region exhibited higher growth rates for T (1.18 mm/a), ET (1.61 mm/a), and T/ET (0.001/a), whereas the HSH region showed lower rates for T (0.81 mm/a) and ET (1.31 mm/a), with a slight decline in T/ET (−0.0004/a). The LMG (Lindeman-Merenda-Gold) analysis highlights the varying contributions of controlling factors to T, ET, and T/ET across different regions. In the Total area and the HSH region, vapor pressure deficit (VPD) is the primary driver of T, while the normalized difference vegetation index (NDVI) dominates in the ASA region. For ET, temperature (TEM) is the leading contributor in the Total area and the HSH region, whereas precipitation (PRE) plays the dominant role in the ASA region. Regarding T/ET, PRE is the most influential factor in the Total area and the HSH region, while NDVI emerges as the key contributor in the ASA region.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"967 ","pages":"Article 178808"},"PeriodicalIF":8.0000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exploring the contribution of vegetation and climate factors to changes in terrestrial evapotranspiration in China\",\"authors\":\"Yibo Xue , Yayong Xue , Meizhu Chen , Yuan Zhang\",\"doi\":\"10.1016/j.scitotenv.2025.178808\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Evapotranspiration (ET) is a key component of the global water cycle, integral to the interactions among water, carbon, and energy exchanges between the terrestrial biosphere and the atmosphere. With global warming anticipated to intensify the water cycle, understanding the spatiotemporal characteristics and driving factors of terrestrial ET in China is increasingly critical. This study categorizes China (Total) into arid and semi-arid (ASA) and humid and semi-humid (HSH) sub-regions based on the aridity index (AI) and utilizes the GLEAM (Global Land Evaporation Amsterdam Model) v3.8a dataset to analyze variations in transpiration (T), ET, and the T/ET from 1982 to 2022. Findings reveal distinct interannual variation trends. The average annual T, ET, and T/ET in the Total area show changes of 0.93 mm/a, 1.40 mm/a, and 0.0001/a, respectively. The ASA region exhibited higher growth rates for T (1.18 mm/a), ET (1.61 mm/a), and T/ET (0.001/a), whereas the HSH region showed lower rates for T (0.81 mm/a) and ET (1.31 mm/a), with a slight decline in T/ET (−0.0004/a). The LMG (Lindeman-Merenda-Gold) analysis highlights the varying contributions of controlling factors to T, ET, and T/ET across different regions. In the Total area and the HSH region, vapor pressure deficit (VPD) is the primary driver of T, while the normalized difference vegetation index (NDVI) dominates in the ASA region. For ET, temperature (TEM) is the leading contributor in the Total area and the HSH region, whereas precipitation (PRE) plays the dominant role in the ASA region. Regarding T/ET, PRE is the most influential factor in the Total area and the HSH region, while NDVI emerges as the key contributor in the ASA region.</div></div>\",\"PeriodicalId\":422,\"journal\":{\"name\":\"Science of the Total Environment\",\"volume\":\"967 \",\"pages\":\"Article 178808\"},\"PeriodicalIF\":8.0000,\"publicationDate\":\"2025-02-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science of the Total Environment\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0048969725004437\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science of the Total Environment","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0048969725004437","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

摘要

蒸散发（ET）是全球水循环的关键组成部分，是陆地生物圈与大气之间水、碳和能量交换相互作用的组成部分。随着全球变暖加剧水循环，了解中国陆地ET的时空特征及其驱动因素变得越来越重要。基于干旱指数（AI），将中国（Total）划分为干旱半干旱（ASA）和湿润半湿润（HSH）两个子区，利用GLEAM （Global Land蒸发阿姆斯特丹模型）v3.8a数据集，分析了1982 - 2022年中国蒸腾(T)、ET和T/ET的变化。研究结果显示出明显的年际变化趋势。全年平均T、ET和T/ET的变化分别为0.93 mm/a、1.40 mm/a和0.0001/a。ASA地区的T （1.18 mm/a）、ET （1.61 mm/a）和T/ET （0.001/a）增长率较高，而HSH地区的T （0.81 mm/a）和ET （1.31 mm/a）增长率较低，T/ET略有下降（- 0.0004/a）。LMG （lindemand - merenda - gold）分析强调了不同地区控制因素对T、ET和T/ET的不同贡献。在Total和HSH区域，水汽压亏缺（VPD）是T的主要驱动因子，而在ASA区域，归一化植被指数（NDVI）占主导地位。对于ET，在Total area和HSH区域，温度（TEM）是主要的贡献因子，而在ASA区域，降水（PRE）起主导作用。对于T/ET， PRE在Total地区和HSH地区是影响最大的因子，而NDVI在ASA地区则是影响最大的因子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Exploring the contribution of vegetation and climate factors to changes in terrestrial evapotranspiration in China

查看原文本刊更多论文

Exploring the contribution of vegetation and climate factors to changes in terrestrial evapotranspiration in China

Evapotranspiration (ET) is a key component of the global water cycle, integral to the interactions among water, carbon, and energy exchanges between the terrestrial biosphere and the atmosphere. With global warming anticipated to intensify the water cycle, understanding the spatiotemporal characteristics and driving factors of terrestrial ET in China is increasingly critical. This study categorizes China (Total) into arid and semi-arid (ASA) and humid and semi-humid (HSH) sub-regions based on the aridity index (AI) and utilizes the GLEAM (Global Land Evaporation Amsterdam Model) v3.8a dataset to analyze variations in transpiration (T), ET, and the T/ET from 1982 to 2022. Findings reveal distinct interannual variation trends. The average annual T, ET, and T/ET in the Total area show changes of 0.93 mm/a, 1.40 mm/a, and 0.0001/a, respectively. The ASA region exhibited higher growth rates for T (1.18 mm/a), ET (1.61 mm/a), and T/ET (0.001/a), whereas the HSH region showed lower rates for T (0.81 mm/a) and ET (1.31 mm/a), with a slight decline in T/ET (−0.0004/a). The LMG (Lindeman-Merenda-Gold) analysis highlights the varying contributions of controlling factors to T, ET, and T/ET across different regions. In the Total area and the HSH region, vapor pressure deficit (VPD) is the primary driver of T, while the normalized difference vegetation index (NDVI) dominates in the ASA region. For ET, temperature (TEM) is the leading contributor in the Total area and the HSH region, whereas precipitation (PRE) plays the dominant role in the ASA region. Regarding T/ET, PRE is the most influential factor in the Total area and the HSH region, while NDVI emerges as the key contributor in the ASA region.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.