Divergent responses of terrestrial carbon use efficiency to climate variation from 2000 to 2018

温带气候 植被(病理学) 北方的 环境科学 初级生产 降水 陆地生态系统 自然地理学 中分辨率成像光谱仪 生态系统 干旱 生产力 气候学 生态学 地理 地质学 气象学 生物 医学 工程类 宏观经济学 病理 航空航天工程 经济 卫星
作者
Gang Chengcheng,Zhuonan Wang,Yongfa You,Yue Liu,Rongting Xu,Zihao Bian,Naiqing Pan,Xuerui Gao,Mingxun Chen,Man Zhang
出处
期刊:Global and Planetary Change [Elsevier BV]
卷期号:208: 103709-103709 被引量:33
标识
DOI:10.1016/j.gloplacha.2021.103709
摘要

Carbon use efficiency (CUE) refers to the allocation of photosynthesized products by plants and is commonly used to measure primary production in terrestrial ecosystems. Despite the fact that the effects of climate variation on vegetation CUE have been studied at various spatial scales, there is still a lack of consensus as to how vegetation CUE responds to climate factors. The objective of this study was to evaluate the spatiotemporal dynamics of terrestrial CUE based on the latest versions of Moderate Resolution Imaging Spectroradiometer (MODIS) products during 2000–2018, and to reveal the dominant climate factor that controls vegetation CUE in different regions by using path analysis (PA). The results showed that global vegetation CUE increased significantly due to a more rapid increase in net primary productivity (NPP) than in gross primary productivity (GPP) over this period. Central Africa and South America are the two areas that experienced clear increases in CUE, and Amazon and northeastern India experienced decreases in vegetation CUE due to reduced precipitation. CUE increased significantly in the north frigid, the torrid, and the south temperate zones over this period. The largest areas showing vegetation CUE increases and decreases occurred in the north temperate zone. Rising precipitation lowered the vegetation CUE in the north frigid zone, but promoted CUE increase in the torrid and south temperate zones. Higher temperatures led to higher CUE in the north frigid and south temperate zones. Reduced CUE due to higher temperature mostly occurred in the arid zones. CUE in the cold/boreal zone remained relatively stable due to the synchronized variation of GPP and NPP. The divergent responses of terrestrial CUE to climate variations call for flexible ecosystem management to adapt to the future warming climate in different regions. The results also highlighted that a dynamic parameterization scheme of vegetation carbon allocation should be considered in simulating the terrestrial C cycle in Earth System Models. • Responses of vegetation CUE to climate variation during 2000–2018 were evaluated using the latest MODIS products. • Path Analysis was used to identify the dominant climate variable that affects CUE at the global and climate zone scales. • Reduced CUE due to higher temperature mostly occurred in the arid region. • Rising precipitation promoted CUE increase in the torrid and south temperate zones.
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
cm发布了新的文献求助10
4秒前
6秒前
6秒前
6秒前
6秒前
6秒前
大力水手完成签到,获得积分0
8秒前
10秒前
cm完成签到,获得积分10
12秒前
酷炫的听枫完成签到 ,获得积分10
13秒前
吱吱吱完成签到 ,获得积分10
14秒前
15秒前
上善若水呦完成签到 ,获得积分10
15秒前
小羡完成签到 ,获得积分10
15秒前
cqwswfl完成签到 ,获得积分20
16秒前
南山无梅落完成签到,获得积分10
17秒前
啵妞完成签到 ,获得积分10
17秒前
上官若男应助qiqi采纳,获得30
19秒前
拼搏的潘子完成签到,获得积分10
20秒前
zsj完成签到,获得积分10
21秒前
dolesy发布了新的文献求助10
22秒前
执着烧鹅完成签到 ,获得积分10
22秒前
哈哈哈完成签到,获得积分10
24秒前
yar应助博修采纳,获得10
26秒前
可爱的函函应助博修采纳,获得10
26秒前
MchemG应助博修采纳,获得10
26秒前
酷波er应助博修采纳,获得10
27秒前
时代更迭完成签到 ,获得积分10
27秒前
28秒前
WGOIST完成签到,获得积分10
29秒前
九九完成签到 ,获得积分10
29秒前
李新宇完成签到 ,获得积分10
30秒前
大橙子发布了新的文献求助10
34秒前
库凯伊完成签到,获得积分10
34秒前
duckspy发布了新的文献求助10
35秒前
CodeCraft应助jenny采纳,获得10
37秒前
lhnsisi完成签到,获得积分10
38秒前
jhlz5879完成签到,获得积分10
39秒前
悦耳曼凝完成签到 ,获得积分10
40秒前
文静的紫萱完成签到,获得积分10
40秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038157
求助须知:如何正确求助?哪些是违规求助? 3575869
关于积分的说明 11373842
捐赠科研通 3305650
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022