云南松不同部位氮、磷、钾储量分配及异速生长研究
Distribution of Nitrogen,Phosphorus and Potassium Reserves and Allometric Growth in Different Parts of Pinus yunnanensis
黄德帅 1王雪纯 1王瑜 2蔡年辉 2陈诗 2邓桂香3
作者信息
- 1. 西南林业大学 林学院,云南 昆明 650224
- 2. 西南林业大学 西南山地森林资源保育与利用教育部重点实验室,云南 昆明 650224;西南林业大学 云南省高校林木遗传改良与繁育重点实验室,云南 昆明 650224
- 3. 云南省林木种苗工作总站,云南 昆明 650215
- 折叠
摘要
为更好进行云南松苗木培育,提升云南松苗木质量,通过对 2 年生云南松苗木生长性状及不同部位氮(N)、磷(P)、钾(K)储量进行统计以及相关性、异速生长分析,研究云南松氮、磷、钾储量.结果表明,云南松幼苗生长2 年后,其地下部位氮、磷、钾分配大小依次为钾储量>氮储量>磷储量;氮、磷、钾在土壤中的分配比例为氮储量>磷储量>钾储量;地上部位氮、磷、钾储量占单株氮、磷、钾储量的比例为钾储量>磷储量>氮储量;磷和钾在地下部位的累积速率大于地上部位的累积速率.以期为云南松苗木培育提供理论参考,为实际生产提供一定理论依据.
Abstract
In order to better cultivate Pinus yunnanensis seedlings and improve the quality of P.yunnanensis,seedlings,the growth characters and reserves of nitrogen(N),phosphorus(P)and potassium(K)in different parts of 2-year-old P.yunnanensis seedlings were studied by descriptive statistics,correlation a-nalysis and allometric analysis.The results showed that the distribution of N,P and K in the under-ground parts of 2-year-old P.yunnanensis seedlings was K>N>P;the proportion distribution of reserves in soil was N>P>K;the proportion of aboveground parts to reserves per plant was K>P>N;the accu-mulation rate of P and K in underground parts was faster than that in aboveground parts.The research re-sults aim to provide theoretical reference for the cultivation of P.yunnanensis seedlings and provide a cer-tain theoretical basis for actual production.
关键词
云南松/氮储量/磷储量/钾储量/储量分配/异速生长Key words
Pinus yunnanensis/nitrogen,phosphorus and potassium/reserves distribution/allometric growth引用本文复制引用
基金项目
云南省万人计划青年拔尖人才项目(09901-80201441)
出版年
2024
NETL
NSTL
维普
万方数据