IB-CAS  > 植被与环境变化国家重点实验室
Long-term effects of grazing and topography on extra-radical hyphae of arbuscular mycorrhizal fungi in semi-arid grasslands
Ren, Haiyan; Gui, Weiyang; Bai, Yongfei1; Stein, Claudia2,3; Rodrigues, Jorge L. M.; Wilson, Gail W. T.; Cobb, Adam B.; Zhang, Yingjun6; Yang, Gaowen
2018
发表期刊MYCORRHIZA
ISSN0940-6360
卷号28期号:2页码:117-127
摘要Grazing and topography have drastic effects on plant communities and soil properties. These effects are thought to influence arbuscular mycorrhizal (AM) fungi. However, the simultaneous impacts of grazing pressure (sheep ha(-1)) and topography on plant and soil factors and their relationship to the production of extra-radical AM hyphae are not well understood. Our 10-year study assessed relationships between grazing, plant species richness, aboveground plant productivity, soil nutrients, edaphic properties, and AM hyphal length density (HLD) in different topographic areas (flat or sloped). We found HLD linearly declined with increasing grazing pressure (1.5-9.0 sheep ha(-1)) in sloped areas, but HLD was greatest at moderate grazing pressure (4.5 sheep ha(-1)) in flat areas. Structural equation modeling indicates grazing reduces HLD by altering soil nutrient dynamics in sloped areas, but non-linearly influences HLD through plant community and edaphic changes in flat areas. Our findings highlight how topography influences key plant and soil factors, thus regulating the effects of grazing pressure on extra-radical hyphal production of AM fungi in grasslands. Understanding how grazing and topography influence AM fungi in semi-arid grasslands is vital, as globally, severe human population pressure and increasing demand for food aggravate the grazing intensity in grasslands.
关键词Grazing pressure Hyphal length density Sheep Edaphic properties Structural equation modeling
学科领域Plant Sciences ; Mycology
DOI10.1007/s00572-017-0812-x
收录类别SCI
语种英语
WOS关键词BELOW-GROUND CARBON ; INNER-MONGOLIA ; COMMUNITY STRUCTURE ; SOIL ; PLANT ; HERBIVORY ; NITROGEN ; COLONIZATION ; VEGETATION ; ECOSYSTEMS
WOS记录号WOS:000422960000002
出版者SPRINGER
文献子类Article
出版地NEW YORK
EISSN1432-1890
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31501996, 31700389] ; Basic research program of Jiangsu province (Natural Science Foundation)-Youth Foundation [BK20160738, BK20150665] ; Division Of Environmental BiologyNational Science Foundation (NSF)NSF - Directorate for Biological Sciences (BIO) [1440484] Funding Source: National Science Foundation
作者邮箱yanggw@njau.edu.cn
作品OA属性Green Published
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/20706
专题植被与环境变化国家重点实验室
作者单位1.Nanjing Agr Univ, Coll Agrograssland Sci, Nanjing 210095, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Washington Univ, Tyson Res Ctr, 1 Brookings Dr, St Louis, MO 63130 USA
4.Washington Univ, Dept Biol, 1 Brookings Dr, St Louis, MO 63130 USA
5.Rodrigues, Jorge L. M.] Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA
6.Wilson, Gail W. T.; Cobb, Adam B.] Oklahoma State Univ, Nat Resource Ecol & Management, 008C Ag Hall, Stillwater, OK 74078 USA
7.China Agr Univ, Dept Grassland Sci, Beijing 100193, Peoples R China
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Ren, Haiyan,Gui, Weiyang,Bai, Yongfei,et al. Long-term effects of grazing and topography on extra-radical hyphae of arbuscular mycorrhizal fungi in semi-arid grasslands[J]. MYCORRHIZA,2018,28(2):117-127.
APA Ren, Haiyan.,Gui, Weiyang.,Bai, Yongfei.,Stein, Claudia.,Rodrigues, Jorge L. M..,...&Yang, Gaowen.(2018).Long-term effects of grazing and topography on extra-radical hyphae of arbuscular mycorrhizal fungi in semi-arid grasslands.MYCORRHIZA,28(2),117-127.
MLA Ren, Haiyan,et al."Long-term effects of grazing and topography on extra-radical hyphae of arbuscular mycorrhizal fungi in semi-arid grasslands".MYCORRHIZA 28.2(2018):117-127.
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