中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 植物研究所
  3. 中国科学院植物研究所
  4. 植被与环境变化国家重点实验室
Temperature and substrate availability regulate soil respiration in the tropical mountain rainforests, Hainan Island, China

文献类型：期刊论文

作者Zhou, Zhang3; Jiang, Lai; Du, Enzai; Hu, Huifeng2; Li, Yide4; Chen, Dexiang4; Fang, Jingyun
刊名JOURNAL OF PLANT ECOLOGY
出版日期2013
卷号6期号:5页码:325-334
关键词soil respiration soil temperature litter tropical mountain rainforest
ISSN号1752-9921
DOI10.1093/jpe/rtt034
文献子类Article
英文摘要Tropical forest plays a key role in global C cycle; however, there are few studies on the C budget in the tropical rainforests in Asia. This study aims to (i) reveal the seasonal patterns of total soil respiration (R-T), litter respiration (R-L) and soil respiration without surface organic litter (R-NL) in the primary and secondary Asian tropical mountain rainforests and (ii) quantify the effects of soil temperature, soil moisture and substrate availability on soil respiration. The seasonal dynamics of soil CO2 efflux was measured by an automatic chamber system (Li-8100), within the primary and secondary tropical mountain rainforests located at the Jianfengling National Reserve in Hainan Island, China. The litter removal treatment was used to assess the contribution of litter to belowground CO2 production. The annual R-T was higher in the primary forest (16.730.87 Mg C ha(1)) than in the secondary forest (15.100.26 Mg C ha(1)). The rates of R-T, R-NL and R-L were all significantly higher in the hot and wet season (MayOctober) than those in the cool and dry season (NovemberApril). Soil temperature at 5cm depth could explain 5561% of the seasonal variation in R-T, and the temperature sensitivity index (Q(10)) ranked by R-L (Q(10) 3.39) > R-T (2.17) > R-NL (1.76) in the primary forest and by R-L (4.31) > R-T (1.86) > R-NL (1.58) in the secondary forest. The contribution of R-L to R-T was 2223%, while litter input and R-T had 1 month time lag. In addition, the seasonal variation of R-T was mainly determined by soil temperature and substrate availability. Our findings suggested that global warming and increased substrate availability are likely to cause considerable losses of soil C in the tropical forests.
学科主题Plant Sciences ; Ecology ; Forestry
出版地OXFORD
电子版国际标准刊号1752-993X
WOS关键词GROUND CARBON ALLOCATION ; CO2 EFFLUX ; MICROBIAL BIOMASS ; NITROGEN ADDITION ; PINE PLANTATION ; ORGANIC-CARBON ; ROOT ; SENSITIVITY ; LITTERFALL ; DEPENDENCE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000324828500002
出版者OXFORD UNIV PRESS
资助机构National Basic Research Program of China on Global Change(National Basic Research Program of China) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Ministry of Science and Technology(Ministry of Science, ICT & Future Planning, Republic of Korea)
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28038]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China
2.Peking Univ, Shenzhen Grad Sch, Sch Urban Planning & Design, Shenzhen 518055, Peoples R China
3.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Zhang,Jiang, Lai,Du, Enzai,et al. Temperature and substrate availability regulate soil respiration in the tropical mountain rainforests, Hainan Island, China[J]. JOURNAL OF PLANT ECOLOGY,2013,6(5):325-334.
APA Zhou, Zhang.,Jiang, Lai.,Du, Enzai.,Hu, Huifeng.,Li, Yide.,...&Fang, Jingyun.(2013).Temperature and substrate availability regulate soil respiration in the tropical mountain rainforests, Hainan Island, China.JOURNAL OF PLANT ECOLOGY,6(5),325-334.
MLA Zhou, Zhang,et al."Temperature and substrate availability regulate soil respiration in the tropical mountain rainforests, Hainan Island, China".JOURNAL OF PLANT ECOLOGY 6.5(2013):325-334.

入库方式： OAI收割

来源：植物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。