Effects of plant-soil feedback on tree seedling growth under arid conditions
作者机构：Resource Ecology GroupWageningen UniversityPO Box 476700 AA WageningenThe Netherlands University College Dublin ForestryAgriculture&Food Science CentreUniversity College DublinBelfieldDublin 4Ireland World Agroforestry Centre(ICRAF)PO Box 30798LilongweMalawi Department of Terrestrial EcologyNetherlands Institute of Ecology(NIOO-KNAW)PO Box 506708 PB WageningenThe Netherlands Laboratory of NematologyWageningen UniversityPO Box 81236700 ES WageningenThe Netherlands
出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)
年 卷 期：2011年第4卷第4期
页 面：193-200页
核心收录：
学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
基 金：This work was financed by a Foundation for Research on Nature Conservation(S072.65)grant to S.S.M a Dutch NWO Meervoud(836.05.021)grant to M.H a NWO ALW-Vici(865.05.002)grant to W.H.v.d.P
主 题：biomass allocation dry forest facilitation Prosopis South America water pulse
摘 要：Plants are able to influence their growing environment by changing biotic and abiotic soil *** soil conditions in turn can influence plant growth conditions,which is called plant–soil ***–soil feedback is known to be operative in a wide variety of ecosystems ranging from temperate grasslands to tropical rain ***,little is known about how it operates in arid *** examined the role of plant–soil feedbacks on tree seedling growth in relation to water availability as occurring in arid ecosystems along the west coast of South *** In a two-phased greenhouse experiment,we compared plant–soil feedback effects under three water levels(no water,10%gravimetric moisture and 15%gravimetric moisture).We used sterilized soil inoculated with soil collected from northwest Peru(Prosopis pallida forests)and from two sites in north-central Chile(Prosopis chilensis forest and scrublands without ***).Important Findings Plant–soil feedbacks differed between plant species and soil origins,but water availability did not influence the feedback ***–soil feedbacks differed in direction and strength in the three soil origins ***–soil feedbacks of plants grown in Peruvian forest soil were negative for leaf biomass and positive for root *** contrast,feedbacks were neutral for plants growing in Chilean scrubland soil and positive for leaf biomass for those growing in Chilean forest *** results show that under arid conditions,effects of plant–soil feedback depend upon ***,the results suggest that plant–soil feedback can influence trade-offs between root growth and leaf biomass investment and as such that feedback interactions between plants and soil biota can make plants either more tolerant or vulnerable to *** on dissecting plant–soil feedbacks into aboveground and belowground tissue responses,we conclude that plant–soil feedback can enhance plant colonization in some arid eco
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