中国科学院东北地理与农业生态研究所机构知识库
Advanced  
NEIGAE OpenIR  > 湿地与全球变化学科组  > 期刊论文
Title: Increase in soil organic carbon in a Mollisol following simulated initial development from parent material
Author: M. You, N. Li, W. Zou, X. Han and M. Burger
Corresponding Author: 韩晓增
Source: European Journal of Soil Science
Issued Date: 2017
DOI: 10.1111/ejss.12400
Volume: 68, Issue:1, Pages:39-47
Abstract: Better understanding of the effects of land use and agricultural management on organic carbon (C) sequestration is needed to optimize the restoration of fertility in degraded soil, maintain agricultural sustainability and mitigate emissions of greenhouse gases with C sequestration. Most current studies of C sequestration focus on mature soil, whereas there has been little research on soil development from C-poor parent material. The aim of this study was to assess soil organic carbon (SOC) stocks and C sequestration rates during the early stages of development of a Mollisol from parent material under different types of vegetation, fertilizer application regimes and organic matter inputs, and to compare the results with C sequestration of a mature Mollisol under similar management. Carbon stocks were recorded from 2004 to 2012 in the parent material of a Mollisol under natural fallow (NatF), alfalfa (Medicago sativa L.) (Alfa) or soya beans (Glycine max (Merrill.) L.) and maize (Zea mays L.) (S-M) rotations with and without fertilizer application and crop residues returned or removed at harvest. There was a positive non-linear relation between C inputs and SOC stocks; increases in SOC stocks decreased with larger additions of C. After 8 years of treatments, the SOC stocks at 0-20-cm depth had increased in the order S-M + fertilizer + all residues returned (61%) > Alfa (60%) > S-M + fertilizer + part of residues returned (50%) > NatF (30%) > S-M + fertilizer without residue return (17%) > S-M without fertilizer or residue return (7%). These increases in SOC stocks corresponded to annual C sequestration rates of 0.02-0.83 Mg C ha(-1) year(-1). In contrast, SOC stocks in the 0-20-cm layer of the mature Mollisol changed little under similar treatments in a wheat (Triticum aestivum L.)-maize-soya bean rotation. Our results have practical implications for how vegetation and agricultural practices could be used to optimize soil restoration and C sequestration in a temperate continental monsoon climate.Highlights What management practices and vegetation lead to carbon sequestration during soil development?Use of a subsoil (parent material) to study soil development.Carbon stocks increased as much in alfalfa as in soya bean-maize rotations with residue return.Perennial legume systems sequester carbon comparable to annual systems with larger carbon inputs.
Citation statistics:
Content Type: 期刊论文
URI: http://ir.iga.ac.cn/handle/131322/7665
Appears in Collections:湿地与全球变化学科组_期刊论文

Files in This Item:

There are no files associated with this item.

Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[M. You, N. Li, W. Zou, X. Han and M. Burger]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[M. You, N. Li, W. Zou, X. Han and M. Burger]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace