文献类型：期刊文献

中文题名：5种黄檀族珍贵树种碳、氮、磷化学计量

英文题名：Carbon, Nitrogen, and Phosphorush Stoichiometry of Leaves, Stems and Roots with Five Rosewood Species of Dalbergieae

作者：赵坤坤[1] 许涵[2] 施国政[1] 张晓凤[3] 杨繁[1] 陈仁利[1]

第一作者：赵坤坤

机构：[1]中国林业科学研究院热带林业研究所试验站,海南乐东黎族自治县572500;[2]中国林业科学研究院热带林业研究所,广东广州510520;[3]海南省林业科学研究院(海南省红树林研究院),海南海口571100

年份：2022

卷号：38

期号：3

起止页码：119-127

中文期刊名：林业与环境科学

外文期刊名：Forestry and Environmental Science

基金：海南热带天然林碳汇计量监测与热带人工林营造技术研究(CAFYBB2018MB014)。

语种：中文

中文关键词：黄檀族;5种珍贵树种;碳;氮;磷;化学计量

外文关键词：Dalbergieae;five rosewood species;C;N;P;stoichiometry

分类号：S718.43

摘要：为了解珍贵树种在环境适应中的资源获取与生长策略,对巴里黄檀Dalbergia bariensis、交趾黄檀Dalbergia cochinchinensis、降香黄檀Dalbergia odorifera、大果紫檀Pterocarpus macrocarpus、檀香紫檀Pterocarpus santalinus叶、茎、根中C、N、P化学计量特征进行分析。结果显示,(1)5种黄檀族树种叶片有机物含量在中国地区处于平均水平,叶片具有高N低P的养分特征,其中交趾黄檀可能是一种潜在的高碳汇树种;(2)黄檀族树种的C元素主要储藏在茎中,N、P元素的分配则趋向叶片;(3)黄檀族树种具有较低养分利用效率和较高生长速率,生长过程主要受土壤P元素限制;(4)生态化学计量比变异分析中,C元素的变异系数最小。
Ecological stoichiometry is widely used as an indicator of the obtain resources and growth strategy of plants. This paper analyzed the carbon(C), nitrogen(N), and phosphorus(P) stoichiometry in leaves, stems and roots of Dalbergia bariensis, Dalbergia cochinchinensis, Dalbergia odorifera, Pterocarpus macrocarpus and Pterocarpus santalinus. Our results showed that:(1) the organic matter content in leaves of Dalbergieae was at a moderate level in China and the leaves had a nutrient characteristics of high nitrogen and low phosphorus. The Dalbergia cochinchinensis may have high carbon sink capacity.(2) The stem of Dalbergieae had highest carbon content, and the nitrogen and phosphorus contents in leaves were significantly higher than those in stems and roots.(3) The five rosewood species had lower nutrient use efficiency, higher growth rate, and the growth was mainly limited by phosphorus in soil.(4) Coefficient variation of ecological stoichiometry showed that the value of carbon content was smallest among all plants. The results of this study can provide a theoretical basis for the scientific cultivation, planting planning and sustainable management of valuable tree species plantation.