Ecological stoichiometric comparison of plant-litter-soil system in mixed-species and monoculture plantations of Robinia pseudoacacia,Amygdalus davidiana,and Armeniaca sibirica in the Loess Hilly Region of China

作     者：Senbao Lu Yunming Chen Jordi Sardans Josep Penuelas Senbao Lu;Yunming Chen;Jordi Sardans;Josep Pe?uelas

作者机构：State Key Laboratory of Soil Erosion and Dryland Farming on the Loess PlateauInstitute of Soil and Water ConservationChinese Academy of Sciences and Ministry of Water ResourcesYangling712100China University of Chinese Academy of SciencesBeijing100049China Institute of Soil and Water ConservationNorthwest A&F UniversityYangling712100China CSICGlobal Ecology Unit CREAF-CSIC-UABBellaterra08193CataloniaSpain CREAFCerdanyola del Vall�es08193CataloniaSpain 

出 版 物：《Forest Ecosystems》 (森林生态系统（英文版）)

年 卷 期：2023年第10卷第3期

页      面：411-424页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：funded by the National Nature Science Foundation of China (No.41771556) funded by the Spanish Government Grants PID2020-115770RB-I00 and TED2021-132627B–I00 funded by the Spanish MCIN,AEI/10.13039/501100011033 the European Union NextGenerationEU/PRTR,the Catalan government grant SGR2021-1333 the Fundaci on Ram on Areces grant CIVP20A6621 

主　　题：Stoichiometry Plant Litter Soil Tree mixture Loess Plateau 

摘      要：We examined how afforestation patterns impact carbon(C),nitrogen(N),and phosphorus(P)stoichiometry in the plant-litter-soil *** leaf,branch,stem,and root,litter,and soil samples were collected from mixedspecies plantations of Robinia pseudoacacia with Amygdalus davidiana(RPAD),*** with Armeniaca sibirica(RPAS),and monocultures of ***(RP),***(AD),and ***(AS)in the Loess Hilly *** results showed that in mixed-species plantations,*** had lower leaf N and P concentrations than in monocultures,while both *** and *** had higher leaf N and P *** P limited tree growth in both afforestation *** *** with *** or *** reduced N-limitation during litter *** soil total N and P concentrations were higher in RPAS than in RPAD,and both were higher than the corresponding *** average soil C:N ratio was the smallest in RPAS,while the average soil C:P ratio was larger in RPAS than in RP.A positive correlation between N and P concentrations,and between C:N and C:P ratios,was found in litter and all plant organs of mono-and ***,for N concentration and C:N ratio,the correlations between plant(i.e.,leaf,branch,root)and litter and between plant and soil were inverse between plantation *** has an increased litter decomposition rate to release N and P,while RPAS has a faster rate of soil N *** was the best plantation(mixed)to improve biogeochemical cycling,as soil nutrient restrictions,particularly for P-limitation,on trees growth were *** study thus provides insights into suitable tree selection and management by revealing C:N:P stoichiometry in the plant-litter-soil system under different afforestation patterns.