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Precipitation consistently promotes, but temperature inversely drives, biomass production in temperate vs. alpine grasslands

文献类型：期刊论文

作者Wu, Wenjuan2; Sun, Ruojun2; Liu, Leren2; Liu, Xiaodi2; Yu, Hongying2; Ma, Quanhui2; Qi, Miao2; Li, Lang2; Li, Yibo2; Zhou, Guangsheng1
刊名AGRICULTURAL AND FOREST METEOROLOGY
出版日期2023
卷号329
关键词Alpine grassland Belowground part Climatic factor Differential mechanism Temperate grassland
ISSN号0168-1923
DOI10.1016/j.agrformet.2022.109277
文献子类Article
英文摘要Comparisons of vegetation production between temperate and alpine grasslands are not well studied, and the understanding of the underlying mechanisms is still incomplete. To address this issue, we selected the Inner Mongolia and Tibet regions to conduct large-transect surveys for temperate grassland (TG) and alpine grassland (AG), respectively, in China, to reveal the universal and differential mechanisms of above-and belowground biomass production (GB, AGB and BGB) and precipitation use efficiencies (PUE) in the two grasslands. The relative importance of climatic factors on biomass and PUE is greater than that of soil and biological factors. Elevated mean annual precipitation (MAP) consistently increased GB in both TG and AG. Increased mean annual temperature (MAT) reduced GB by weakening the soil nutrient status in TG, whereas it increased GB by improving the soil nutrient status in AG. MAP promoted more AGB than BGB in TG, whereas MAT affected BGB more than AGB in AG. When the multicomponent heterogeneity of other factors in grasslands was eliminated, the effect of MAP on GB remained significant for both TG and AG. After removing the effect of multifactorial het-erogeneity, however, the significant effect of MAP on PUE of the two grasslands was largely enhanced. From these results, we can conclude that climatic factors do not always exert identical effects on different grasslands. In particular, highlighting the divergent mechanisms of biomass production and precipitation use efficiency between temperate and alpine grasslands can improve the understanding of the carbon sink and hydraulic sensitivity of various grasslands.
学科主题Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
出版地AMSTERDAM
电子版国际标准刊号1873-2240
WOS关键词NET PRIMARY PRODUCTIVITY ; ABOVEGROUND BIOMASS ; USE EFFICIENCY ; TERRESTRIAL ECOSYSTEMS ; MICROBIAL COMMUNITY ; NITROGEN DEPOSITION ; PLANT DIVERSITY ; CLIMATE ; METAANALYSIS ; RESPONSES
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000899205600001
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 ; [2019QZKK0106] ; [XDA26010103]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/29145]  
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.China Meteorol Adm, Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Wenjuan,Sun, Ruojun,Liu, Leren,et al. Precipitation consistently promotes, but temperature inversely drives, biomass production in temperate vs. alpine grasslands[J]. AGRICULTURAL AND FOREST METEOROLOGY,2023,329.
APA Wu, Wenjuan.,Sun, Ruojun.,Liu, Leren.,Liu, Xiaodi.,Yu, Hongying.,...&Xu, Zhenzhu.(2023).Precipitation consistently promotes, but temperature inversely drives, biomass production in temperate vs. alpine grasslands.AGRICULTURAL AND FOREST METEOROLOGY,329.
MLA Wu, Wenjuan,et al."Precipitation consistently promotes, but temperature inversely drives, biomass production in temperate vs. alpine grasslands".AGRICULTURAL AND FOREST METEOROLOGY 329(2023).

入库方式： OAI收割

来源：植物研究所

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