中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Effects of Climate Change and Fencing on Forage Nutrition Quality of Alpine Grasslands in the Northern Tibet

文献类型：期刊论文

作者Zhang, Guangyu1; Dai, Erfu1; Dawaqiongda, Eugenio2; Luobu2; Fu, Gang1
刊名PLANTS-BASEL
出版日期2023-09-01
卷号12期号:18页码:16
关键词biodiversity acid detergent fiber crude ash crude protein dissolvable total sugar ether extract neutral detergent fiber alpine regions
DOI10.3390/plants12183182
通讯作者Fu, Gang(fugang@igsnrr.ac.cn)
英文摘要How climate change and fencing will affect forage nutrition quality of alpine grasslands is still unknown in the Northern Tibet. Here, we reported the effects of climate change and fencing on forage nutrition quality (i.e., CP: crude protein, ADF: acid detergent fiber, NDF: neutral detergent fiber, Ash: crude ash, EE: ether extract and DTS: dissolvable total sugar) in alpine grasslands across the Northern Tibet based on a transect survey dataset from 2018. Over the whole survey transect, fencing reduced the NDF content by 5.15% and the EE content by 15.79%, but did not affect forage nutrition quality (R2 = 0.04, p = 0.389). Air temperature and precipitation explained 24% and 8% of variation in the CP content under the fencing conditions, respectively. Precipitation explained 22% of variation in the NDF content under the fencing conditions. The CP content decreased and increased exponentially with increasing air temperature under the fencing and grazing conditions, respectively. The NDF content showed logarithmic and negative relationships with precipitation under the fencing and grazing conditions (-8.45 vs. -6.68lnNDF). The response of the CP content to fencing showed negative relationships with temperature and the response of AGB to fencing, but showed a positive relationship with precipitation. The CP and DTS contents showed negative relationships with AGB under the fencing and grazing conditions. In contrast, the ADF content showed a positive relationship with AGB. The response of AGB, SR and community composition to fencing explained 11%, 56% and 35% of variation in the response of forage nutrition quality to fencing, respectively. Therefore, climate change may not always have adverse effects on forage nutrition quality, whereas fencing may not always have favorable effects on forage nutrition quality. Fencing and climate change can have an interactive effect on forage nutrition quality. Fencing can alter the temperature and precipitation sensitivities of forage nutrition quality. In colder and wetter regions, the forage nutrition quality may be more responsive to fencing. There may be a trade-off between forage nutrition quality and quantity. Compared to the change in AGB caused by fencing, the changes in species & alpha;-diversity and community composition caused by fencing can have greater effects on the response of forage nutrition quality to fencing. Local climate conditions and the trade-offs between forage nutrition quality and biomass should be considered when evaluating the effects of fencing on the restoration of degraded grassland plants.
WOS关键词DIVERSITY ; YIELD ; DEFOLIATION ; EXCLUSION
资助项目Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020054] ; China National Natural Science Foundation[31600432] ; Pilot Project of the Chinese Academy of Sciences[XDA26050501] ; Tibet Autonomous Region Science and Technology Project[XZ202301YD0012C] ; Tibet Autonomous Region Science and Technology Project[XZ202202YD0009C] ; Tibet Autonomous Region Science and Technology Project[XZ202201ZY0003N] ; Tibet Autonomous Region Science and Technology Project[XZ202101ZD0007G] ; Tibet Autonomous Region Science and Technology Project[XZ202101ZD0003N] ; Construction of Zhongba County Fixed Observation and Experiment Station of the First Support System for Green Agricultural Development
WOS研究方向Plant Sciences
语种英语
出版者MDPI
WOS记录号WOS:001074294600001
资助机构Youth Innovation Promotion Association of the Chinese Academy of Sciences ; China National Natural Science Foundation ; Pilot Project of the Chinese Academy of Sciences ; Tibet Autonomous Region Science and Technology Project ; Construction of Zhongba County Fixed Observation and Experiment Station of the First Support System for Green Agricultural Development
源URL[http://ir.igsnrr.ac.cn/handle/311030/198370]  
专题中国科学院地理科学与资源研究所
通讯作者Fu, Gang
作者单位1.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
2.Zhongba Cty Agr & Anim Husb Comprehens Serv Ctr, Babazhadong Village 858800, Zhongba County, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Guangyu,Dai, Erfu,Dawaqiongda, Eugenio,et al. Effects of Climate Change and Fencing on Forage Nutrition Quality of Alpine Grasslands in the Northern Tibet[J]. PLANTS-BASEL,2023,12(18):16.
APA Zhang, Guangyu,Dai, Erfu,Dawaqiongda, Eugenio,Luobu,&Fu, Gang.(2023).Effects of Climate Change and Fencing on Forage Nutrition Quality of Alpine Grasslands in the Northern Tibet.PLANTS-BASEL,12(18),16.
MLA Zhang, Guangyu,et al."Effects of Climate Change and Fencing on Forage Nutrition Quality of Alpine Grasslands in the Northern Tibet".PLANTS-BASEL 12.18(2023):16.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。