中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 植物研究所
  3. 中国科学院植物研究所
  4. 植被与环境变化国家重点实验室
Effects of plant intraspecific variation on the prediction of C-3/C-4 vegetation ratio from carbon isotope composition o f topsoil organic matter across grasslands

文献类型：期刊论文

作者Luo, Wentao; Wang, Xiaoguang6; Auerswald, Karl7; Wang, Zhengwen; Bird, Michael, I3,8; Still, Christopher J.; Lu, Xiao-Tao; Han, Xingguo2,4
刊名JOURNAL OF PLANT ECOLOGY
出版日期2021
卷号14期号:4页码:628-637
关键词arid and semiarid grasslands interspecific variation intraspecific variation soil organic matter two-member mixing models vegetation ratio
ISSN号1752-9921
DOI10.1093/jpe/rtab022
文献子类Article
英文摘要Aims Understanding the patterns and drivers of carbon isotope discrimination ((13)Delta) in C-3 and C-4 functional groups is critical for predicting C-3/C-4 vegetation ratio from the isotopic composition of soil organic matter. In this study, we aimed to evaluate how intraspecific variation will modify functional group-level (13)Delta values and the associated prediction of C-3/C-4 vegetation ratio. Methods We investigated (13)Delta of 726 individual plants (96 species; C-3 and C-4 functional groups) and topsoil organic matter in 26 grassland communities along an aridity gradient in northern China. The fraction of C-4 contribution was calculated with mixing models that considered: (i) both intra- and interspecific effects on the (13)Delta values of C-3 and C-4 functional groups; (ii) only interspecific effects; or (iii) none of these effects. Important Findings We found divergent responses of plant (13)Delta at the intraspecific level to the changes of aridity across the gradient. The (13)Delta of both C-3 and C-4 functional groups was negatively correlated with an aridity index, with higher sensitivity for C-3 than for C-4 functional groups. Intraspecific (13)Delta variation played a key role in driving the total (13)Delta variations of C-3 plants. Overlooking such intraspecific effect in mixing models led to a greatly increased fraction of C-4 contribution to soil organic carbon. A correction for the effects of intraspecific variation is therefore essential for correctly inferring C-3/C-4 vegetation ratio in the past. Our findings provide basic information for the reconstruction of past vegetation change from bulk materials in arid and semiarid biomes.
学科主题Plant Sciences ; Ecology ; Forestry
出版地OXFORD
电子版国际标准刊号1752-993X
WOS关键词WATER-USE EFFICIENCY ; C-4 PLANTS ; LONG-TERM ; RAINFALL GRADIENT ; FOLIAR DELTA-C-13 ; NATURAL-ABUNDANCE ; DISCRIMINATION ; PRECIPITATION ; GRASSES ; STEPPE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000668108500006
出版者OXFORD UNIV PRESS
资助机构National Natural Science Foundation of China [31971465, 31822006, 31770503, 41807108] ; National Basic Research Program of China [2016YFC0500601, 2016YFC0500700] ; Youth Innovation Promotion Association CAS [201832, 2020199] ; CAS [KFZD-SW-305-002]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26482]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.James Cook Univ, Coll Sci & Engn, Cairns, Qld 4870, Australia
4.Still, Christopher J.] Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR USA
5.James Cook Univ, Arc Ctr Excellence Australian Biodivers & Heritag, Cairns, Qld 4870, Australia
6.Chinese Acad Sci, Inst Appl Ecol, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China
7.Dalian Minzu Univ, Coll Environm & Resources, Dalian 116600, Peoples R China
8.Tech Univ Munich, Lehrstuhl Grunlandlehre, Alte Akad 12, D-85350 Freising Weihenstephan, Germany
推荐引用方式
GB/T 7714		 Luo, Wentao,Wang, Xiaoguang,Auerswald, Karl,et al. Effects of plant intraspecific variation on the prediction of C-3/C-4 vegetation ratio from carbon isotope composition o f topsoil organic matter across grasslands[J]. JOURNAL OF PLANT ECOLOGY,2021,14(4):628-637.
APA Luo, Wentao.,Wang, Xiaoguang.,Auerswald, Karl.,Wang, Zhengwen.,Bird, Michael, I.,...&Han, Xingguo.(2021).Effects of plant intraspecific variation on the prediction of C-3/C-4 vegetation ratio from carbon isotope composition o f topsoil organic matter across grasslands.JOURNAL OF PLANT ECOLOGY,14(4),628-637.
MLA Luo, Wentao,et al."Effects of plant intraspecific variation on the prediction of C-3/C-4 vegetation ratio from carbon isotope composition o f topsoil organic matter across grasslands".JOURNAL OF PLANT ECOLOGY 14.4(2021):628-637.

入库方式： OAI收割

来源：植物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。