文献类型：期刊文献

中文题名：Seasonal dynamics of foliar δ^(13)C and nutrient concentration of Chinese chastetree and spine jujube in foothill rock outcrop habitat of the southern Taihang Mountains, Central China

英文题名：Seasonal dynamics of foliar δ^(13)C and nutrient concentration of Chinese chastetree and spine jujube in foothill rock outcrop habitat of the southern Taihang Mountains, Central China

作者：Chunxia He[1,2] Jinsong Zhang[1,2] Ping Meng[1,2] Jun Gao[1,2]

第一作者：何春霞;Chunxia He

机构：[1]Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry,Chinese Academy of Forestry;[2]Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University

年份：2019

卷号：30

期号：1

起止页码：45-56

中文期刊名：林业研究：英文版

收录：CSTPCD;;Scopus;CSCD:【CSCD2019_2020】；

基金：supported by the financial assistance provided by the National Natural Science Foundation of China(No.31400385);the National Key Technologies R&D Program of China(No.2015BAD07B0202);the Specialized Research Fund for Young Scholars of the Research Institute of Forestry,Chinese Academy of Forestry(No.RIF2013-08);the Fundamental Research Funds for the Central Non-profit Research Institution of CAF(No.CAFYBB2014QB027)

语种：英文

中文关键词：Global;climatic;change;Agroforestry;Natural;regeneration;Deciduous;plant;Arid;land

外文关键词：Global climatic change;Agroforestry;Natural regeneration;Deciduous plant;Arid land

分类号：S718.5

摘要：In this study, in situ investigation was conducted on Chinese chastetree(Vitex negundo var. heterophylla)and spine jujube(Ziziphus jujuba var. spinosa) during early, developed, and closing succession stages. Monthly data were recorded for foliar δ^(13)C values and foliar N, P,and K concentrations from May to October. Foliar δ^(13)C values declined with time and differences by succession stage varied by species. Older spine jujube displayed higher foliar N concentration while foliar P concentration was inversely related with N. Chinese chastetree had lower foliar K concentration than spine jujube. Foliar C/N ratio declined during the dry season and increased in the wet season. Foliar N/P ratio increased during the dry season and declined to its initial level until October, when it increased again. Foliar δ^(13)C value was positively correlated with foliar N concentration. Foliar P and K concentrations were positively correlated to each other. In conclusion, the two shrubs had contrasting strategies of water use efficiency during their succession, but water use efficiency of both species was promoted by N availability and limited by P availability.
In this study, in situ investigation was conducted on Chinese chastetree(Vitex negundo var. heterophylla)and spine jujube(Ziziphus jujuba var. spinosa) during early, developed, and closing succession stages. Monthly data were recorded for foliar δ^(13)C values and foliar N, P,and K concentrations from May to October. Foliar δ^(13)C values declined with time and differences by succession stage varied by species. Older spine jujube displayed higher foliar N concentration while foliar P concentration was inversely related with N. Chinese chastetree had lower foliar K concentration than spine jujube. Foliar C/N ratio declined during the dry season and increased in the wet season. Foliar N/P ratio increased during the dry season and declined to its initial level until October, when it increased again. Foliar δ^(13)C value was positively correlated with foliar N concentration. Foliar P and K concentrations were positively correlated to each other. In conclusion, the two shrubs had contrasting strategies of water use efficiency during their succession, but water use efficiency of both species was promoted by N availability and limited by P availability.