DOI: 10.1016/j.foreco.2015.04.025
Scopus记录号: 2-s2.0-84949094521
论文题名: Fine-root distribution, production, decomposition, and effect on soil organic carbon of three revegetation shrub species in northwest China
作者: Lai Z. ; Zhang Y. ; Liu J. ; Wu B. ; Qin S. ; Fa K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 359 起始页码: 381
结束页码: 388
语种: 英语
英文关键词: Artemisia ordosica
; Carbon sequestration
; Decomposition
; Hedysarum mongolicum
; Light fraction soil organic carbon
; Salix psammophila
Scopus关键词: Carbon
; Decomposition
; Forestry
; Population distribution
; Revegetation
; Soil conservation
; Soils
; Artemisia ordosica
; Carbon sequestration
; Hedysarum mongolicum
; Salix psammophila
; Soil organic carbon
; Organic carbon
; carbon sequestration
; decomposition
; dicotyledon
; fine root
; legume
; organic carbon
; revegetation
; shrub
; soil carbon
; spatial distribution
; vertical distribution
; China
; Artemisia ordosica
; Hedysarum mongolicum
; Salix psammophila
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. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65220
Appears in Collections: 影响、适应和脆弱性
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作者单位: Yanchi Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, China; Key Laboratory of Soil and Water Conservation and Desertification Combating, Beijing Forestry University, Ministry of Education, Beijing, China; School of Natural Resources and Environment, Northwest A and F University, Yangling, Shaanxi, China
Recommended Citation:
Lai Z.,Zhang Y.,Liu J.,et al. Fine-root distribution, production, decomposition, and effect on soil organic carbon of three revegetation shrub species in northwest China[J]. Forest Ecology and Management,2016-01-01,359