Precipitation Alters the Effects of Temperature on the Ecosystem Multifunctionality in Alpine Meadows
文献类型： 外文期刊
作者： Ma, Yunhe 1 ; Tian, Lihua 4 ; Qu, Guangpeng 3 ; Li, Ruicheng 5 ; Wang, Weiwei 6 ; Zhao, Jingxue 1 ;
作者机构： 1.Lanzhou Univ, State Key Lab Grassland Agroecosyst, Inst Innovat Ecol, Lanzhou, Peoples R China
2.Lanzhou Univ, Coll Life Sci, Lanzhou, Peoples R China
3.Tibet Acad Agr & Anim Husb Sci, State Key Lab Hulless Barley & Yak Germplasm Reso, Grassland Sci Inst, Lhasa, Peoples R China
4.Southwest Minzu Univ, Inst Qinghai Tibetan Plateau, Chengdu, Peoples R China
5.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Dept Ecol,Coll Urban & Environm Sci, Beijing, Peoples R China
6.Guizhou Univ, Key Lab Plateau Mt Anim Genet Breeding & Reprod, Minist Educ, Coll Anim Sci, Guiyang, Peoples R China
关键词： alpine meadow; ecosystem multifunctionality; climate change; reciprocal transplantation; Tibetan Plateau
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）
ISSN： 1664-462X
年卷期： 2022 年 12 卷
页码：
收录情况： SCI
摘要： Precipitation and temperature are major controls on multiple ecosystem functions in alpine grasslands. There is scant evidence for the interactive effects of temperature and precipitation changes on the ecosystem multifunctionality (EMF) in alpine meadows. To explore the interactive effects of temperature and precipitation changes on the EMF in alpine meadows, we transplanted meadow blocks reciprocally among three altitudes (4,650, 4,950, and 5,200 m) on the central Tibetan Plateau. Compared with the home sites (control), the EMF has a trend to increase when meadow blocks were downward transplanted (experimental warming) to the high-precipitation sites but decrease as meadow blocks were downward transplanted to the low-precipitation sites. However, the experimental cooling (upward transplantation) consistently reduced the EMF regardless of the precipitation change. The increase of EMF under the experimental warming was closely related to the variation of both plant and soil functions, whereas the reduction of EMF under the cooling was highly correlated with the decrease of plant function. Our results highlight that climate warming effects on the EMF are greatly associated with precipitation changes in the semi-arid alpine ecosystems.
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