Arid
DOI10.1016/j.ecoleng.2016.10.026
Effects of grazing regime on vegetation structure, productivity, soil quality, carbon and nitrogen storage of alpine meadow on the Qinghai-Tibetan Plateau
Li, Wen1; Cao, Wenxia1; Wang, Jinlan2; Li, Xiaolong1; Xu, Changlin1; Shi, Shangli1
通讯作者Cao, Wenxia
来源期刊ECOLOGICAL ENGINEERING
ISSN0925-8574
EISSN1872-6992
出版年2017
卷号98页码:123-133
英文摘要

Grazing regime has an important effect on grassland ecosystem. however, the mechanisms how alpine meadow vegetation, soil quality responds to this management regime remain unclear. A short term field experiment (4-5 years) was conducted to quantify the impact of different grazing management regimes (fencing (NG), grazing rest in growing stage (RG), traditional grazing (TG) and continued grazing (CG)) on alpine meadow of the Qinghai-Tibet Plateau (QTP) and investigated vegetation structure, soil physicochemical properties, C and N storage regarding grazing regime, during two consecutive years: 2014 and 2015. Our results revealed that the above-, below-ground and litter biomass, plant coverage in NG were significantly higher than those in RG, TG and CG in 2014 and 2015. The NG significantly increased the diversity, evenness and richness indexes when compared to CG, while NG significantly decreased those indexes compared with RG. Meanwhile, litter biomass and plant coverage had no significant difference between RG and TG in 2014 and 2015, and the above- and below-ground biomass had no significant difference between RG and TG in 2014, but RG significantly increased the above- and below-ground biomass compared with TG in 2015. The NG, RG and TG sites all significantly improved the bulk density, soil compaction in 0-30 cm soil depth, available nitrogen and available potassium concentrations in 0-10 cm soil layer compared with CG site. NG, RG and TG all significantly increased the soil water content, total nitrogen, total phosphorus and available phosphorus in 0-30 cm soil depth compared with CG site. The C and N storage in vegetation, 0-40 cm soil depth and whole ecosystem were significantly increased in NG, RG and TG compared with CG in both years. Our results demonstrated that fencing is the most suitable grazing management regime on alpine meadow of the QTP. However, taking into account other factors such as: use and update of grassland resources, economic income stability of herdsmen, the grazing rest in the growing stage enable to promote the efficient use of grassland resources, maintaining alpine ecosystem and preventing it from further degradation or desertification is the best one. (C) 2016 Elsevier B.V. All rights reserved.


英文关键词Alpine meadow Grazing regime Vegetation structure Soil quality Carbon storage Nitrogen storage
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000390454300016
WOS关键词INNER-MONGOLIA ; SEMIARID RANGELANDS ; ORGANIC-MATTER ; C STOCKS ; LAND-USE ; CHINA ; GRASSLAND ; EXCLUSION ; ECOSYSTEMS ; BIOMASS
WOS类目Ecology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology ; Engineering
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198418
作者单位1.Gansu Agr Univ, Sino US Res Ctr Sustainable Grassland & Livestock, Grassland Sci Coll, Grassland Ecosyst Key Lab,Minist Educ, Lanzhou 730030, Peoples R China;
2.Gansu Agr Univ, Coll Anim Sci & Technol, Lanzhou 730030, Peoples R China
推荐引用方式
GB/T 7714
Li, Wen,Cao, Wenxia,Wang, Jinlan,et al. Effects of grazing regime on vegetation structure, productivity, soil quality, carbon and nitrogen storage of alpine meadow on the Qinghai-Tibetan Plateau[J],2017,98:123-133.
APA Li, Wen,Cao, Wenxia,Wang, Jinlan,Li, Xiaolong,Xu, Changlin,&Shi, Shangli.(2017).Effects of grazing regime on vegetation structure, productivity, soil quality, carbon and nitrogen storage of alpine meadow on the Qinghai-Tibetan Plateau.ECOLOGICAL ENGINEERING,98,123-133.
MLA Li, Wen,et al."Effects of grazing regime on vegetation structure, productivity, soil quality, carbon and nitrogen storage of alpine meadow on the Qinghai-Tibetan Plateau".ECOLOGICAL ENGINEERING 98(2017):123-133.
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