The growth and composition of natural stands of birch
The growth and composition of natural stands of birch
复制标题
天然桦木林的生长和组成
DOI：
10.1007/bf01666212
复制
发表时间：
1959
期刊：
影响因子：
4.9
通讯作者：
H. Madgwick
中科院分区：
文献类型：
--
作者：
J. Ovington;H. Madgwick
SummarySample trees up to 55 years of age from nine natural woodlands of birch at Holme Fen Nature Reserve were analysed for sodium, potassium, calcium, magnesium, phosphorus, and nitrogen. Data are given of the amounts of these elements in the leaves, branches, boles, and in some cases of roots for the sample trees and the stock of the tree stands. The average annual uptake of nutrients and the return of nutrients to the soil as the woodlands mature are estimated.
