摘要
The growth process of Chinese fir trees under the pattern of reserving broad leaved tree species in Chinese fir plantation and in pure Chinese fir stand(control) were studied. The results showed that comparing with the control, the tree height, D.B.H and tree volume increment of Chinese fir under the pattern was a little slower in the early seven years and higher at 8～22 5 year old. After 22 5 year old the increment declined hardly (though total increment was higher than the control). All these reflected the effect of tree competition and soil fertility development on the tree growth of Chinese fir. In order to cultivate large timber under the pattern, the relationship of Chinese fir and broad leaved tree species must be adjusted in time and the broad leaved trees existed in the same forest canopy with Chinese fir must be cut over at about 20 year old.
The growth process of Chinese fir trees under the pattern of reserving broad leaved tree species in Chinese fir plantation and in pure Chinese fir stand(control) were studied. The results showed that comparing with the control, the tree height, D.B.H and tree volume increment of Chinese fir under the pattern was a little slower in the early seven years and higher at 8～22 5 year old. After 22 5 year old the increment declined hardly (though total increment was higher than the control). All these reflected the effect of tree competition and soil fertility development on the tree growth of Chinese fir. In order to cultivate large timber under the pattern, the relationship of Chinese fir and broad leaved tree species must be adjusted in time and the broad leaved trees existed in the same forest canopy with Chinese fir must be cut over at about 20 year old.
出处
《林业科学》
CAS
CSCD
北大核心
2000年第z01期143-147,共5页
Scientia Silvae Sinicae
基金
福建省自然科学基金!资助项目 (资助号F991)
关键词
栽杉留阔
杉阔混交林
生长过程
杉木
可持续经营
Reserving broad leaved tree species in Chinese fir plantation, Mixed forest of Chinese fir and broad leaved tree species, Pure Chinese fir plantation, Mean increment, Current annual increment, Growth process
