摘要
在杨梅与乔灌木和毛竹混生的生境下,杨梅叶幕层光强显著减弱,土层中根量减少,死根增多,叶片光合速率明显下降,从而影响到杨梅的生长和结果。通过疏伐杨梅树冠周围林木,并实行土壤垦复和施肥,改善了叶幕层光强和土层中根系生长环境,光合速率相应提高,促进了杨梅的生长和结果。
Conclusions, which are obtained by means. of two-year observing outdoors as well as analysing indoors, are that the light intensity in the leaf curtain layer of Chinesebayberry decreases markedly on condition that bamboo, trees and shrubs grow together, thatthe number of roots of Chinese bayberry in the soil decreases while the dead roots increaseand that the photosynthetic speed of leaves slows down considerably, which all affect thegrowth and fruit bearing of Chineas bayberry. Therefore, the photosynthetic speed as wellas the light intensity of leaf curtain layer of Chinese bayberry can be raised and the rootgrowth condition in the soil improved, all of which promote the growth and fruit bearingof Chinese bayberry, if the bamboo and tree growing around Chinese bayberry are cut outand the soil is harrowed and fertilized at the same time.
出处
《浙江林业科技》
北大核心
1990年第2期6-10,共5页
Journal of Zhejiang Forestry Science and Technology
