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Climate shifts biomass allocation by altering plant functional group in alpine vs. temperate grasslands on both Inner Mongolian and Tibetan plateaus

文献类型：期刊论文

作者Wu, Wenjuan1,2,3; Sun, Ruojun2,3; Zhao, Guang1; Zheng, Zhoutao1; He, Yunlong1; Liu, Leren2,3; Zhou, Guangsheng2,4; Zhang, Yangjian1; Xu, Zhenzhu2,3
刊名CATENA
出版日期2024-04-15
卷号238页码:8
关键词Alpine grasslands Biomass allocation Climate changes Plant functional group Soil nutrition Temperate grasslands
ISSN号0341-8162
DOI10.1016/j.catena.2024.107887
通讯作者Zhang, Yangjian(zhangyj@igsnrr.ac.cn) ; Xu, Zhenzhu(xuzz@ibcas.ac.cn)
英文摘要Elucidating biomass partitioning between above- and belowground parts in plant communities is vital to better assessing the ecological services of terrestrial ecosystems. However, the knowledge of biomass allocation in grasslands is scant, especially for the divergent mechanisms under both contrasting conditions. On two large geographic transects, Tibetan Plateau and Inner Mongolian Plateau, we analyzed the general and differential mechanisms of biomass allocation (plant biomass ratio of root to shoot, R/S) in temperate vs. alpine grasslands. We found that the R/S exhibited large variations, ranging from 3.89 to 45.10 in temperate grasslands and from 4.74 to 80.72 in alpine grasslands. The R/S decreased with increasing precipitation in both grasslands, whereas it weakly related to temperature. Plant functional group had highest importance on R/S than mean annual precipitation, mean annual temperature, soil nitrogen and phosphorus availabilities, and plant richness and diversity index. Climate factors indirectly but strongly drove R/S by mainly changing plant functional group compositions. Particularly, forbs affected R/S more than other dominant plant functional types. This information can provide a profound insight into the biomass allocation dynamics in grasslands at regional level under climate change scenarios.
WOS关键词ENVIRONMENTAL-FACTORS ; WATER ; ROOT ; PRECIPITATION ; PRODUCTIVITY ; RESPONSES ; PATTERNS ; DROUGHT
资助项目Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0106] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA26010103]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:001200138000001
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/204691]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Yangjian; Xu, Zhenzhu
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Meteorol Sci, China Meteorol Adm, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Wenjuan,Sun, Ruojun,Zhao, Guang,et al. Climate shifts biomass allocation by altering plant functional group in alpine vs. temperate grasslands on both Inner Mongolian and Tibetan plateaus[J]. CATENA,2024,238:8.
APA Wu, Wenjuan.,Sun, Ruojun.,Zhao, Guang.,Zheng, Zhoutao.,He, Yunlong.,...&Xu, Zhenzhu.(2024).Climate shifts biomass allocation by altering plant functional group in alpine vs. temperate grasslands on both Inner Mongolian and Tibetan plateaus.CATENA,238,8.
MLA Wu, Wenjuan,et al."Climate shifts biomass allocation by altering plant functional group in alpine vs. temperate grasslands on both Inner Mongolian and Tibetan plateaus".CATENA 238(2024):8.

入库方式： OAI收割

来源：地理科学与资源研究所

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