Plant functional groups asynchrony keep the community biomass stability along with the climate change- a 20-year experimental observation of alpine meadow in eastern Qinghai-Tibet Plateau

被引：46

作者：

Zhou, Bingrong ^{[1
]}

Li, Shuai ^{[2
]}

Li, Fu ^{[1
]}

Dong, Shikui ^{[2
]}

Ma, Fulin ^{[3
]}

Zhu, Shengcui ^{[3
]}

Zhou, Huakun ^{[4
]}

Stufkens, Paul ^{[5
]}

机构：

[1] Qinghai Inst Meteorol Sci, Xining 810001, Qinghai, Peoples R China

[2] Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China

[3] Haibei Anim Husb Meteorol Expt Stn Qinghai Prov, Haibei 810200, Peoples R China

[4] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Are Qinghai Prov, Xining 810008, Qinghai, Peoples R China

[5] Zamorano Univ, English Dept, Francisco Morazan, Honduras

来源：

AGRICULTURE ECOSYSTEMS & ENVIRONMENT | 2019年 / 282卷

基金：

国家重点研发计划;

关键词：

Temporal stability; Climate changes; Alpine meadow; Qinghai-Tibetan Plateau; TEMPORAL STABILITY; ECOSYSTEM STABILITY; GRASSLAND; DIVERSITY; PRODUCTIVITY; PATTERNS; DROUGHT; MECHANISMS; RESISTANCE; DOMINANCE;

D O I：

10.1016/j.agee.2019.06.002

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Climate changes can affect the temporal stability of plant community biomass on the Qinghai-Tibet Plateau, but most studies were based on short-term field climate manipulation experiments. However, the response of biomass stability of natural alpine meadow remains largely unexplored. We conducted a 20-year experimental study monitoring aboveground biomass of plant functional groups (grass, forb and sedge) and community in eastern QTP, with linear regressions and a path analysis of: annual temperature, annual night minimum temperature, annual daytime maximum temperature, annual precipitation, annual daytime precipitation, annual night precipitation, biomass stability of grass, biomass stability of forb, plant functional groups asynchrony to assess the influence climate change and biological factors on the temporal stability of plant community biomass. We found that it was plant functional groups asynchrony rather than climate change that determined the temporal stability of plant community biomass. Our findings suggest that future climate change has a considerable uncertainty in the temporal stability of the plant community biomass in the alpine meadow and we should combine with both field climate manipulation experiments and long-term observational experiments to assess the influence of climate change on the temporal stability of plant community.

引用

页码：49 / 57

页数：9

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