典型文献
Spatial patterns of leaf nitrogen and phosphorus stoichiometry across southeast to central Tibet
文献摘要：
Leaf N and P stoichiometry in terrestrial ecosystems has been widely investigated in recent years owing to the importance of these elements in improving the predicted vegetation responses to global changes.The vertical distribution of leaf N and P stoichiometry has attracted increasing attention because of the dramatic changes in environmental factors at regional scales.However,the characteristics of leaf N and P stoichiometry in the southeast Qinghai-Tibet plateau(SET)are not clear,although this area is sensitive to global change.Here,we analyzed the leaf N and P concentrations in dominant plant species on natural altitudinal gradients on the Duoxiongla(DXL),Sejila(SJL),Mila(ML),and Gangbala(GBL)mountains across the SET all the way to central Tibet.Our results showed that the leaf N concentrations were comparable among the regions,whereas the leaf P concentrations dramatically decreased from SET to central Tibet(CT).The leaf N concentrations were 23.6,21.3,20.8,and 22.4 g kg-1,and the leaf P concentrations were 2.40,2.49,1.94,and 1.59 g kg-1 on the SJL,DXL,ML and GBL mountains,respectively.The leaf N/P ratios on the DXL,SJL,ML,and GBL mountains were 8.81,10.3,11.2,and 14.2,respectively.Considering the increasing trend of the leaf N/P ratio from southeast Qinghai-Tibet plateau to central Tibet,N limitation might widely exist in well vegetated ecosystems in the Qinghai-Tibet plateau.
文献关键词：
中图分类号：
作者姓名：
WANG Wei;ZHAO Jia-min;XING Zhen
作者机构：
College of Resources and Environmental Sciences,Tibet Agriculture&Animal Husbandry University,Nyingchi 860000,China;Research institute of Tibet Plateau Ecology,Tibet Agriculture&Animal Husbandry University,Nyingchi 860000,China
文献出处：
引用格式：
[1]WANG Wei;ZHAO Jia-min;XING Zhen-.Spatial patterns of leaf nitrogen and phosphorus stoichiometry across southeast to central Tibet)[J].山地科学学报（英文版）,2022(09):2651-2663
A类：
Duoxiongla,DXL,Sejila,Mila,Gangbala
B类：
Spatial,patterns,leaf,nitrogen,phosphorus,stoichiometry,across,southeast,central,Tibet,Leaf,terrestrial,ecosystems,has,been,widely,investigated,recent,years,owing,importance,these,elements,improving,predicted,vegetation,responses,global,changes,vertical,distribution,attracted,increasing,attention,because,environmental,factors,regional,scales,However,characteristics,Qinghai,plateau,SET,not,clear,although,this,area,sensitive,Here,analyzed,concentrations,dominant,plant,species,natural,altitudinal,gradients,SJL,ML,GBL,mountains,way,Our,results,showed,that,were,comparable,among,regions,whereas,dramatically,decreased,from,respectively,ratios,Considering,trend,limitation,might,exist,well,vegetated
AB值：
0.435738
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