Arid
DOI10.1371/journal.pone.0114558
Influence of Soil Moisture on Litter Respiration in the Semiarid Loess Plateau
Zhang, Yanjun1; Guo, Shengli1,2,3,4; Liu, Qingfang4; Jiang, Jishao2,3
通讯作者Guo, Shengli
来源期刊PLOS ONE
ISSN1932-6203
出版年2014
卷号9期号:12
英文摘要

Understanding the response mechanisms of litter respiration to soil moisture in water-limited semi-arid regions is of vital importance to better understanding the interplay between ecological processes and the local carbon cycle. In situ soil respiration was monitored during 2010-2012 under various conditions (normal litter, no litter, and double litter treatments) in a 30-year-old artificial black locust plantation (Robinia pseudoacacia L.) on the Loess Plateau. Litter respiration with normal and double litter treatments exhibited similar seasonal variation, with the maximum value obtained in summer (0.57 and 1.51 mmol m(-2) s(-1) under normal and double litter conditions, respectively) and the minimum in spring (0.27 and 0.69 mu mol m(-2) s(-1) under normal and double litter conditions, respectively). On average, annual cumulative litter respiration was 115 and 300 g C m(-2) y-(1) under normal and double litter conditions, respectively. Using a soil temperature of 17 degrees C as the critical point, the relationship between litter respiration and soil moisture was found to follow quadratic functions well, whereas the determination coefficient was much greater at high soil temperature than at low soil temperature (33-35% vs. 2224%). Litter respiration was significantly higher in 2010 and 2012 than in 2011 under both normal litter (132-165 g C m(-2) y(-1) vs. 48 g C m(-2) y(-1)) and double litter (389-418 g C m(-2) y(-1) vs. 93 g C m(-2) y(-1)) conditions. Such significant interannual variations were largely ascribed to the differences in summer rainfall. Our study demonstrates that, apart from soil temperature, moisture


类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000346382500046
WOS关键词BELOW-GROUND LITTER ; ABOVEGROUND LITTER ; CO2 EFFLUX ; RHIZOSPHERE RESPIRATION ; TEMPERATURE-DEPENDENCE ; FOREST ECOSYSTEMS ; ORGANIC-MATTER ; WATER-CONTENT ; DECOMPOSITION ; CARBON
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
来源机构西北农林科技大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/184422
作者单位1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dry Land Farming Loess, Yangling, Peoples R China;
2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling, Peoples R China;
3.Minist Water Resource, Yangling, Peoples R China;
4.Northwest A&F Univ, Coll Resources & Environm, Yangling, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yanjun,Guo, Shengli,Liu, Qingfang,et al. Influence of Soil Moisture on Litter Respiration in the Semiarid Loess Plateau[J]. 西北农林科技大学,2014,9(12).
APA Zhang, Yanjun,Guo, Shengli,Liu, Qingfang,&Jiang, Jishao.(2014).Influence of Soil Moisture on Litter Respiration in the Semiarid Loess Plateau.PLOS ONE,9(12).
MLA Zhang, Yanjun,et al."Influence of Soil Moisture on Litter Respiration in the Semiarid Loess Plateau".PLOS ONE 9.12(2014).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Yanjun]的文章
[Guo, Shengli]的文章
[Liu, Qingfang]的文章
百度学术
百度学术中相似的文章
[Zhang, Yanjun]的文章
[Guo, Shengli]的文章
[Liu, Qingfang]的文章
必应学术
必应学术中相似的文章
[Zhang, Yanjun]的文章
[Guo, Shengli]的文章
[Liu, Qingfang]的文章
相关权益政策
暂无数据
收藏/分享

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。