J Integr Plant Biol. ›› 1988, Vol. 30 ›› Issue (3): -.

• Research Articles •    

A Study on some Symptoms of the Declining and Mortal Pinus massoniana Lamb. Forest on Nanshan Mountain in Chongqing

Liu Hou-tain, Zhang Wei-ping, Shen Ying-wa, Du Xiao-ming, Zou Xiao-yan, Liu Ruo-an, Ma Liang-qingo Du Shi-cai, Lan Kang-hou, Lou Ren, Lou Jia-ju and Tang Qin   

Abstract: In 1982, some trees in a 1800 ha forest of masson pine on Nanshan Mountain. Chongqing,were found to be dying, since then, half of the trees have died off and the whole forest isin danger. On damaged trees, the needle became spotted blotch, dieback and even yellow at all, its internal tissue had been destroyed and early defoliated; the root system was undeveloped,and had few rootlets; the branch decreased and died; the growth of stem in height and diameter were weakened. It is showed that the plant has been growing unhealthily. It was alsoknown by the stem analysis that shows the phenomenon of growth weakening since 1967. The result of preliminary study suggests that the declining and dying of masson pineforest in Nanshan Mountain maybe related to environmental pollution.

Key words: Pinus massoniana Lamb., Symptom Mortality of Environmental pollution

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2021 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
备案号:京ICP备16067583号-22