亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Contributions of climate change, elevated atmospheric CO2 and human activities to ET and GPP trends in the Three-North Region of China

绿化 初级生产 蒸散量 环境科学 气候变化 植被(病理学) 降水 自然地理学 大气科学 气候学 地理 生态系统 生态学 气象学 地质学 医学 生物 病理
作者
Shudi Xie,Xingguo Mo,Shi Hu,Suxia Liu
出处
期刊:Agricultural and Forest Meteorology [Elsevier BV]
卷期号:295: 108183-108183 被引量:100
标识
DOI:10.1016/j.agrformet.2020.108183
摘要

Quantifying and distinguishing the contributions of climate change, elevated atmospheric CO2 concentration (eCO2) and human activities to evapotranspiration (ET) and gross primary production (GPP) changes is of great significance for assessment of water shortage and land degradation. Based on the Vegetation Interface Processes (VIP) model, the spatial-temporal changes of ET and GPP in the Three-North Region (TNR) of China from 1982 to 2017 were estimated. The results showed that annual ET and GPP increased slightly with a rate of 0.71 mm yr−1 (P<0.001) and 0.002 gC m−2 yr−1 (P<0.001), respectively. The ridge regression presented that the contributions of climate change, eCO2 and human activities to ET and GPP trends were varying noticeably in the four sub-regions, namely: in the Mongolia-Xinjiang Sub-region (MXS), ET and GPP trends were basically attributed to increasing precipitation; in the Loess Plateau Sub-region (LPS), vegetation greening resulted from the Grain to Green Program was the dominant driving factor for GPP enhancement, while the relative contribution of vegetation greening to ET intensifying was lower than the raising net radiation; in the North China Sub-region (NCS), the negative effect of net radiation decline on ET was offset by the positive effect of vegetation greening, -and eCO2 and vegetation greening dominated the upward trend of GPP; in the Northeast China Sub-region (NES), the declines in net radiation and precipitation showed negative impacts on ET and GPP trends. These findings are crucial for better understanding the complicated influences of driving factors on water and carbon cycles over the TNR, which is favorable for evaluation of ecological projects effects and management of water resources.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
2秒前
cherlie应助Plum22采纳,获得20
4秒前
edisonyan完成签到 ,获得积分10
4秒前
刘宇童发布了新的文献求助10
7秒前
26秒前
大个应助刘宇童采纳,获得10
27秒前
小二郎应助xiongdi521采纳,获得10
40秒前
47秒前
xiongdi521发布了新的文献求助10
52秒前
1分钟前
1分钟前
Ava应助吕易巧采纳,获得10
1分钟前
1分钟前
1分钟前
andrele发布了新的文献求助10
1分钟前
1分钟前
吕易巧发布了新的文献求助10
1分钟前
1分钟前
1分钟前
1分钟前
2分钟前
2分钟前
Microbiota完成签到,获得积分10
2分钟前
会飞的流氓兔完成签到 ,获得积分10
2分钟前
2分钟前
DL完成签到,获得积分10
2分钟前
DL发布了新的文献求助10
2分钟前
小马甲应助科研通管家采纳,获得10
3分钟前
MchemG应助科研通管家采纳,获得100
3分钟前
大模型应助科研通管家采纳,获得10
3分钟前
李健的小迷弟应助xiongdi521采纳,获得10
3分钟前
3分钟前
闫雪发布了新的文献求助10
3分钟前
3分钟前
橙子味的邱憨憨完成签到 ,获得积分10
3分钟前
xiongdi521发布了新的文献求助10
3分钟前
隐形曼青应助闫雪采纳,获得10
3分钟前
激动的似狮完成签到,获得积分10
3分钟前
3分钟前
3分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990148
求助须知:如何正确求助?哪些是违规求助? 3532119
关于积分的说明 11256456
捐赠科研通 3271016
什么是DOI,文献DOI怎么找? 1805171
邀请新用户注册赠送积分活动 882288
科研通“疑难数据库(出版商)”最低求助积分说明 809228