IB-CAS  > 中科院植物分子生理学重点实验室
Soil respiration along an altitudinal gradient in a subalpine secondary forest in China
Luo, Shuzheng1; Liu, Guohua; Li, Zongshan; Hu, Chanjuan2; Gong, Li1; Wang, Meng1; Hu, Huifeng3
2015
Source PublicationIFOREST-BIOGEOSCIENCES AND FORESTRY
ISSN1971-7458
Volume8Pages:526-532
AbstractThe subalpine forest ecosystems in the Miyaluo Forest District in western Sichuan (China) could be very sensitive to global climate change, with important consequences for the regional carbon (C) balance. In a birch secondary forest in this area, we measured plots with (Control) and without (No Litter) leaf litter to explore variation in soil respiration and its relationship with environmental factors along an altitudinal gradient, and to quantify the litter contribution to soil respiration. Soil respiration rate decreased with elevation. The average of soil respiration rates along the elevation gradient during the measurement period was 2.83 +/- 0.14 mu mol CO2 m(-2) s(-1) in the Control treatment and 2.35 +/- 0.16 mu mol CO2 m(-2) s(-1) in the No Litter treatment, with an average proportion of litter layer contribution to soil respiration of 17%. A significant linear relationship between soil respiration and soil temperature along the altitudinal gradient was found, while soil respiration was not significantly correlated with soil water content in both treatments. Soil temperature accounted for 94.9% and 95.6% of the total variation in soil respiration in Control and No Litter treatments, respectively. At altitudes of 2910 m, 3135 m, 3300 m and 3492 m a.s.l., soil respiration had a significant exponential relationship with soil temperature (p<0.05), but it was not significantly correlated with soil water content in both treatments (p>0.05). Soil temperature accounted for more than 92% and 81% of the total variation in soil respiration in Control and No Litter treatments, respectively, at all altitudes except at 3135 m a.s.l. Our results suggest that the expected temperature increases by global warming might enhance soil respiration in the birch secondary forest.
KeywordBirch Secondary Forest Soil Respiration Soil Temperature Soil Water Content Litter
Subject AreaForestry
DOI10.3832/ifor0895-007
Indexed BySCI
Language英语
WOS KeywordCO2 EFFLUX ; CONIFEROUS FOREST ; CARBON ALLOCATION ; ORGANIC-CARBON ; RESPONSES ; DETERMINANTS ; PLANTATIONS ; VARIABILITY ; ECOSYSTEMS ; LITTER
WOS Research AreaScience Citation Index Expanded (SCI-EXPANDED)
WOS IDWOS:000358979600001
PublisherSISEF-SOC ITALIANA SELVICOLTURA ECOL FORESTALE
SubtypeArticle
Publication PlacePOTENZA
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences [XDA05060100] ; National Science Foundation of China [41071039, 31000210]
Corresponding Author Emailluoshuzhengyan@163.com
OAgold
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/25835
Collection中科院植物分子生理学重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Henan Acad Sci, Inst Geog Sci, Zhengzhou 450052, Peoples R China
4.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
Recommended Citation
GB/T 7714
Luo, Shuzheng,Liu, Guohua,Li, Zongshan,et al. Soil respiration along an altitudinal gradient in a subalpine secondary forest in China[J]. IFOREST-BIOGEOSCIENCES AND FORESTRY,2015,8:526-532.
APA Luo, Shuzheng.,Liu, Guohua.,Li, Zongshan.,Hu, Chanjuan.,Gong, Li.,...&Hu, Huifeng.(2015).Soil respiration along an altitudinal gradient in a subalpine secondary forest in China.IFOREST-BIOGEOSCIENCES AND FORESTRY,8,526-532.
MLA Luo, Shuzheng,et al."Soil respiration along an altitudinal gradient in a subalpine secondary forest in China".IFOREST-BIOGEOSCIENCES AND FORESTRY 8(2015):526-532.
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