Arid
DOI10.1016/j.foreco.2015.04.025
Fine-root distribution, production, decomposition, and effect on soil organic carbon of three revegetation shrub species in northwest China
Lai, Zongrui1; Zhang, Yuqing1,2; Liu, Jiabin3; Wu, Bin1,2; Qin, Shugao1,2; Fa, Keyu1
通讯作者Zhang, Yuqing
来源期刊FOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
出版年2016
卷号359页码:381-388
英文摘要

Revegetation with xerophilous shrubs is an effective approach to combat desertification in northwestern China; however, evaluation studies on fine-root properties of shrubs and soil organic carbon are limited. To gain a better understanding of revegetation practices, we investigated the vertical distribution of fine-root biomass, necromass, production, and effect on soil organic carbon (SOC) content in three shrub species (Salix psammophila, Hedysarum mongolicum, and Artemisia ordosica). In addition, we also estimated the fine root decomposition rate with litterbag techniques. The results showed that revegetation practices resulted in a significant increase in SOC content. Over a 10 year period of revegetation, the SOC content in S. psammophila, H. mongolicum, and A. ordosica plots increased by 0.87, 1.07, and 1.82 times, respectively, more than that in bare-land plot. Increase in total SOC content was mainly due to increase in light-fraction SOC, except for the A. ordosica plot. Variations in the short-term increase of SOC content after revegetations with the three shrubs on sand land might be explained by fine root decomposition rates, at least in part. A. ordosica may be a better species for SOC accumulation and sequestration in the study site. Additionally, fine-root biomass and production were not associated with more SOC content increase in shrub plots. The results suggest the mechanism of SOC accumulation and sequestration differed among shrub plots and highlight the effectiveness of different shrub species as revegetation materials in terms of SOC accumulation and sequestration. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Artemisia ordosica Carbon sequestration Decomposition Hedysarum mongolicum Light fraction soil organic carbon Salix psammophila
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000366789500039
WOS关键词US SANDY LAND ; VERTICAL-DISTRIBUTION ; SEMIARID REGION ; LEAF-LITTER ; CARAGANA-KORSHINSKII ; SUBTROPICAL CHINA ; ATMOSPHERIC CO2 ; LOESS PLATEAU ; FOREST ; TURNOVER
WOS类目Forestry
WOS研究方向Forestry
来源机构西北农林科技大学 ; 北京林业大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/192987
作者单位1.Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing 100083, Peoples R China;
2.Beijing Forestry Univ, Minist Educ, Key Lab Soil & Water Conservat & Desertificat Com, Beijing 100083, Peoples R China;
3.Northwest A&F Univ, Sch Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Lai, Zongrui,Zhang, Yuqing,Liu, Jiabin,et al. Fine-root distribution, production, decomposition, and effect on soil organic carbon of three revegetation shrub species in northwest China[J]. 西北农林科技大学, 北京林业大学,2016,359:381-388.
APA Lai, Zongrui,Zhang, Yuqing,Liu, Jiabin,Wu, Bin,Qin, Shugao,&Fa, Keyu.(2016).Fine-root distribution, production, decomposition, and effect on soil organic carbon of three revegetation shrub species in northwest China.FOREST ECOLOGY AND MANAGEMENT,359,381-388.
MLA Lai, Zongrui,et al."Fine-root distribution, production, decomposition, and effect on soil organic carbon of three revegetation shrub species in northwest China".FOREST ECOLOGY AND MANAGEMENT 359(2016):381-388.
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