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Forage nutrition quality and pools in Tibetan grasslands: Fencing effects functional groups and yield-nutrition trade-offs

文献类型：期刊论文

作者Qin, Yong3,4; Zhang, Peng1; Zhu, Yuanpeng2; Zhang, Xianzhou4; Fu, Gang4
刊名AGRICULTURE ECOSYSTEMS & ENVIRONMENT
出版日期2025-11-01
卷号393页码:109828
关键词Proportion of edible forage Functional groups Forage nutrition quality Fencing Spatial pattern Tibetan Plateau
ISSN号0167-8809
DOI10.1016/j.agee.2025.109828
产权排序1
文献子类Article
英文摘要Few studies have comprehensively assessed the forage nutrition quality and pools among different plant functional groups across various grassland types and management practices. Moreover, the relationship between forage yield and nutrition quality remains controversial, hindering the development of effective grassland management strategies. This study investigated 37 paired fencing-grazing sites along an 1800-km transect on the Tibetan Plateau to systematically evaluate the variations of forage nutrition quality and pool at both community and functional group levels (graminae, sedge, edible forb and unpalatable forb) across alpine meadows, steppes and desert steppes. Fencing increased spatial average crude protein (CP) content of community by 7.90 %, while reducing crude ash (ASH) and water-soluble carbohydrate (WSC) contents by 6.20 % and 7.27 %, respectively. The CP, ASH, ether extract (EE), acid detergent fiber (ADF) and neutral detergent fiber (NDF) pools were increased by 13.15-29.48 %. The effects of fencing varied with the 37 sites. Fencing heterogenized the spatial pattern of community nutrition quality, but homogenized the CP content of sedge. Graminaes provided the highest NDF. Sedges offered the highest CP and WSC, and moderate ADF, and EE. Edible forbs served the highest EE. Unpalatable forbs supplied the highest ASH. The relationships between forage yield and nutrition quality varied with functional groups and management types. Compared with the spatial heterogeneity method (based on the proportion of edible forage), the traditional mean value method may overestimate or underestimate the nutrition carrying capacity. Therefore, fencing generally improved forage crude protein content, at the expense of decreasing crude ash and water-soluble carbohydrate content. Contrary to expectations, sedges did not exhibit higher nutrition quality compared to other functional groups. The trade-offs between forage yield and nutrition quality did not always hold true. A fixed proportion of edible forage should not be used for the assessment of potential nutrition carrying capacity.
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WOS关键词PLANT-SPECIES RICHNESS ; ALPINE GRASSLAND ; CLIMATE-CHANGE ; ECOSYSTEM ; MANAGEMENT ; SOIL ; PRECIPITATION ; BIODIVERSITY ; METAANALYSIS ; RESPIRATION
WOS研究方向Agriculture ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001520031400001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/215350]  
专题拉萨站高原生态系统研究中心_外文论文
通讯作者Fu, Gang
作者单位1.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100048, Peoples R China;
2.Anhui Prov Acad Ecoenvironm Sci Res, Hefei 230061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China;
推荐引用方式
GB/T 7714		 Qin, Yong,Zhang, Peng,Zhu, Yuanpeng,et al. Forage nutrition quality and pools in Tibetan grasslands: Fencing effects functional groups and yield-nutrition trade-offs[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2025,393:109828.
APA Qin, Yong,Zhang, Peng,Zhu, Yuanpeng,Zhang, Xianzhou,&Fu, Gang.(2025).Forage nutrition quality and pools in Tibetan grasslands: Fencing effects functional groups and yield-nutrition trade-offs.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,393,109828.
MLA Qin, Yong,et al."Forage nutrition quality and pools in Tibetan grasslands: Fencing effects functional groups and yield-nutrition trade-offs".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 393(2025):109828.

入库方式： OAI收割

来源：地理科学与资源研究所

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