globalchange  > 气候变化与战略
CSCD记录号: CSCD:5124508
论文题名:
退化草地补播草木樨、黄花苜蓿的生产力和土壤碳截获潜力
其他题名: Community productivity and soil carbon sequestration after Melilotus officinalis and Medicago falcata reseeding on degraded grassland
作者: 李飞1; 禹朴家1; 神祥金1; 宋彦涛2; 李强1; 张海艳1; 周道玮1
刊名: 草业科学
ISSN: 1001-0629
出版年: 2014
卷: 31, 期:3
语种: 中文
中文关键词: 退化草地 ; 补播 ; 深根系 ; 垂直分布 ; 碳截获
英文关键词: degraded grassland ; reseeding ; deep roots ; profile vertical distribution ; carbon sequestration
WOS学科分类: AGRICULTURE MULTIDISCIPLINARY
WOS研究方向: Agriculture
中文摘要: 通过对补播两年后的草木樨(Melilotus suaveolens)、黄花苜蓿(Medicago falcate)等5种群落的群落组成、生产力以及土壤有机碳储量的调查,分析了5种群落类型的土壤碳储量及群落生产力,探讨了补播对退化草地土壤碳截获及群落生产力的影响。结果表明,1)补播显著提高了退化草地的碳截获能力(P<0.05)。补播深根系牧草草木樨、黄花苜蓿群落的土壤碳储量明显高于退化的芦苇(Phragmites australis)群落,而自然演替的羊草(Leymus chinensis)和轻度退化的虎尾草(Chloris virgata)群落介于二者之间,表现为芦苇<虎尾草<羊草<草木樨<黄花苜蓿;2)土壤有机碳储量和含量具有明显的垂直分布特征,且各群落之间差异明显;3)补播改善了群落组成,大大提高了群落生产力(P<0.05),其整体变化趋势为虎尾草<芦苇<羊草<黄花苜蓿<草木樨。我国草地面积大,补播可能是实现退化草地恢复和固碳功能的最经济和最具操作性的途径之一。
英文摘要: Land usage is an important aspect for human influence on carbon process.The impact of land usage on the sequestration of carbon is one of the most important domains to global change research.The main objective of this study was to identify the effects of reseeding on soil carbon sequestration in degraded grassland.The effects of reseeding on community composition,community productivity and soil carbon sequestration in the degraded grassland were discussed.Carbon storage and productivity significantly increased(P<0.05)in reseeding community compared with degraded community.The carbon storage of reseeding community increased in the followding order:Phragmites australis
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/147442
Appears in Collections:气候变化与战略

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作者单位: 1.中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国
2.东北师范大学, 长春, 吉林 130024, 中国

Recommended Citation:
李飞,禹朴家,神祥金,等. 退化草地补播草木樨、黄花苜蓿的生产力和土壤碳截获潜力[J]. 草业科学,2014-01-01,31(3)
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