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兰州大学机构库  > 草地农业科技学院  > 期刊论文
题名: The response of soil organic carbon and nitrogen 10 years after returning cultivated alpine steppe to grassland by abandonment or reseeding
作者: Shang, ZH(尚占环); Cao, JJ; Guo, RY; Long, RJ(龙瑞军); Deng, B
收录类别: SCIE
出版日期: 2014-08
刊名: CATENA
卷号: 119, 页码:28-35
出版者: ELSEVIER
出版地: AMSTERDAM
英文摘要: The effects on the status of carbon and nitrogen in alpine steppe soils from returning cultivated land back to grassland is not well known. The present study reported on the effects on the soil carbon and nitrogen status of alpine steppe soils from two restoration methods, reseeding grasses and abandonment. The study based on four study sites selected within the same broad area on the north slope of Qilian Mountain: native alpine steppe, cropland of 40 years, former oat cropland reseeded with the grass (Elymus sibiricus) 10 years ago, and cropland abandoned 10 years ago. This experiment measured the soil physical, carbon and nitrogen properties of all selected plots. Ten years after restoration by reseeding or abandonment had resulted in the return of cropland to a perennial grass community through succession, with total soil carbon and nitrogen returning to more than 70% of the original grassland plots. The reseeding method benefited soil carbon and nitrogen more than abandonment after 10 years. The light fraction organic carbon, microbial biomass carbon and microbial biomass nitrogen recovered more quickly than soil organic carbon and total soil nitrogen. In conclusion, we recommend the two methods (reseeding and abandonment) as suitable methods to engineer the returning of cultivated land back to grassland in the alpine steppe. (C) 2014 Elsevier B.V. All rights reserved.
关键词: Alpine steppe ; Returning of cropland back to grassland ; Reseeding ; Abandonment ; Carbon and nitrogen ; Restoration
作者部门: [Shang, Zhan-Huan ; Cao, Jing-Juan ; Long, Rui-Jun] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Peoples R China ; [Guo, Rui-Ying] Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, Lanzhou 730000, Peoples R China ; [Deng, Bo] China Agr Univ, Coll Anim Sci & Technol, Inst Grassland Sci, Beijing 100094, Peoples R China
通讯作者: Shang, ZH (reprint author), 768 Jiayuguan West Rd, Lanzhou 730020, Gansu, Peoples R China.
学科分类: Geology; Agriculture; Water Resources
文章类型: Article
所属项目编号: World Bank/Global Environment Fund project [052456CHA-GS-Y-4] ; National Natural Science Foundation of China [41171417] ; Program for New Century Excellent Talents in University [NCET-13-0261]
所属项目名称: 国家自然科学基金项目 ; 新世纪优秀人才支持计划
项目资助者: NSFC ; MOE
语种: 英语
DOI: 10.1016/j.catena.2014.03.006
ISSN号: 0341-8162
WOS记录号: WOS:000336705500005
第一机构:
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/113780
Appears in Collections:草地农业科技学院_期刊论文

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Recommended Citation:
Shang, ZH,Cao, JJ,Guo, RY,et al. The response of soil organic carbon and nitrogen 10 years after returning cultivated alpine steppe to grassland by abandonment or reseeding[J]. CATENA,2014,119:28-35.
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