DOI: 10.1016/j.foreco.2020.117952
论文题名: Divergent effects of a 6-year warming experiment on the nutrient productivities of subtropical tree species
作者: Wu T. ; Liu S. ; Lie Z. ; Zheng M. ; Duan H. ; Chu G. ; Meng Z. ; Zhou G. ; Liu J.
刊名: Forest Ecology and Management
ISSN: 3781127
出版年: 2020
卷: 461 语种: 英语
英文关键词: Biomass allocation
; Nitrogen productivity
; Phosphorus productivity
; Plant growth
; Subtropical forest
; Warming
Scopus关键词: Biomass
; Ecosystems
; Nitrogen
; Nutrients
; Plants (botany)
; Productivity
; Tropics
; Biomass allocation
; Community structures
; Native tree species
; Nitrogen and phosphorus
; Plant growth
; Species composition
; Subtropical forests
; Warming
; Forestry
; biomass allocation
; divergence
; forest ecosystem
; global warming
; growth response
; nitrogen compound
; nutrient cycling
; phosphorus
; subtropical region
; Biomass
; Ecosystems
; Nitrogen
; Nutrients
; Productivity
; Tropics
; Itea
; Machilus
; Schima superba
; Syzygium
英文摘要: Previous studies have mainly focused on the changes in plant growth, but few have quantified the alternations in nutrient productivities to explain the climate warming-induced shifts in species compositions and community structures of forest ecosystems. Here, we conducted a 6-year warming experiment by translocating model forest ecosystems from high-elevation sites to lower-elevation sites, to investigate the plant biomass allocation patterns and nutrient productivities of four native tree species. The results showed that warming increased the biomass of Schima superba, Syzygium rehderianum, and Itea chinensis, but decreased the biomass of Machilus breviflora. Seedlings of S. superba, S. rehderianum, and I. chinensis under warming allocated more biomass to stems at the expense of leaves and roots. In contrast, M. breviflora allocated 34% greater biomass to the roots. Warming increased the nitrogen productivity of S. rehderianum by 35%; however, it decreased the nitrogen and phosphorus productivity of I. chinensis and M. breviflora by approximately 40% and 60%, respectively. These results indicate that M. breviflora has a low fitness in long-term warming conditions due to its reduced biomass and nutrient productivities. Our findings may have important implications for better understanding the effects of warming on the species compositions of subtropical forests. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158596
Appears in Collections: 气候变化与战略
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作者单位: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, 510650, China; Center for Plant Ecology, Core Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Tianhe District, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100039, China; Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, 330099, China
Recommended Citation:
Wu T.,Liu S.,Lie Z.,et al. Divergent effects of a 6-year warming experiment on the nutrient productivities of subtropical tree species[J]. Forest Ecology and Management,2020-01-01,461