DOI: 10.1016/j.foreco.2017.06.012
Scopus记录号: 2-s2.0-85021145150
论文题名: Newly sequestrated soil organic carbon varies with soil depth and tree species in three forest plantations from northeastern China
作者: Song W. ; Liu Y. ; Tong X.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 400 起始页码: 384
结束页码: 395
语种: 英语
英文关键词: 13C isotopic tracing
; Carbon sequestration
; Forestation
; Soil depth
; Soil organic carbon
; Tree species
Scopus关键词: Estimation
; Forestry
; Organic carbon
; Carbon sequestration
; Forestation
; Isotopic tracing
; Soil depth
; Soil organic carbon
; Tree species
; Soils
; Larix gmelinii
; Populus trichocarpa
英文摘要: To evaluate and improve the ecological benefit of forestation programs, post-forestation estimations of newly sequestrated soil organic carbon (SOC) are necessary. Here, we collected soil samples from three plantations in northeast China and used 13C natural abundance to measure the amount of SOC sequestrated since 1998. Newly sequestrated SOC decreased with the increasing soil depth in the Larix gmelinii plantation, but increased with soil depth in the Populus trichocarpa plantation. In contrast, newly sequestrated SOC in the Armeniaca sibirica plantation peaked at a soil depth of 30–40 cm. With increasing distance from the tree trunk, average newly sequestrated SOC gradually decreased in the L. gmelinii plantation, did not vary in the P. trichocarpa plantation, and exhibited a gentle unimodal curve in the A. sibirica plantation. Overall, the average density of newly sequestrated SOC in the L. gmelinii, P. trichocarpa, and A. sibirica plantations at a soil depth of 0–50 cm was 0.60, 0.70, and 0.61 g cm−3, respectively. Determination of δ15N and the C/N ratio provided evidence to support the hypothesis that newly sequestrated SOC was primarily regulated by the root-microbial system. Soil depth and tree species should be taken into account when estimating soil carbon sequestration in future studies. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64200
Appears in Collections: 影响、适应和脆弱性
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作者单位: College of Forestry, Beijing Forestry University, Beijing, China
Recommended Citation:
Song W.,Liu Y.,Tong X.. Newly sequestrated soil organic carbon varies with soil depth and tree species in three forest plantations from northeastern China[J]. Forest Ecology and Management,2017-01-01,400