干旱区生态环境知识资源中心(Arid): Growth responses of Picea mongolica seedlings to defoliation rate

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	Growth responses of Picea mongolica seedlings to defoliation rate
	Zou Chunjing; Han Shijie; Qi Shuyan; Xu Wenduo; Li Daotang
来源期刊	Journal of Environmental Sciences
ISSN	1001-0742
出版年	2005
卷号	17 期号:2 页码:232-236
英文摘要	Picea mongolica W. D. Xu. is an endemic species in China. The spruce forest is only found in semi-arid habitat in Inner Mongolia Autonomous Region of China. Based on the simulative defoliation experiment, it was proved that Picea mongolica seedlings had the compensatory and overcompensatory effects under the certain defoliation rate. The results of variance analysis on growth indexes showed that in PM Ⅰ (natural regeneration seedlings under Picea mongolica forest), the differences of H1 (height in June 23) and H2 (height in September 3) were extremely significant, and the difference of D(diameter at the breast height) were not significant. In PM Ⅱ (artificial regeneration seedlings under Betula platyphylla Suk. forest), the difference of H1 was significant, the difference of H2 was not significant, and the difference of D was extremely significant. The regression equations were established and the compensatory and overcompensatory points were obtained. In PM Ⅰ , the compensatory points of H1, H2, and D were 0.7628, 0.7436, 0.5725, and the overcompensatory points were 0.6056, 0.5802 and 0.2909 respectively. In PM Ⅱ, the compensatory points of H1, H2, and D are 0.5012, 0.3421, 0.2488, and the overcompensatory points are 0.4137, 0.2633 and 0.0747 respectively. These results suggested that the induction of compensatory growth mechanisms in spruce seedlings required a threshold level of defoliation, and the insects in Picea mongolica forest could be controlled in a certain degree.
英文关键词	Picea mongolica W. D. Xu. compensate overcompensate growth defoliation rate
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1918807
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334881
作者单位	Zou Chunjing, College of Life Science & Biotechnology, Shanghai Jiaotong University, Shanghai 200030, China.; Li Daotang, College of Life Science & Biotechnology, Shanghai Jiaotong University, Shanghai 200030, China.; Han Shijie, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, LiaoNing 110016, China.; Qi Shuyan, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, LiaoNing 110016, China.; Xu Wenduo, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, LiaoNing 110016, China.
推荐引用方式 GB/T 7714	Zou Chunjing,Han Shijie,Qi Shuyan,et al. Growth responses of Picea mongolica seedlings to defoliation rate[J],2005,17(2):232-236.
APA	Zou Chunjing,Han Shijie,Qi Shuyan,Xu Wenduo,&Li Daotang.(2005).Growth responses of Picea mongolica seedlings to defoliation rate.Journal of Environmental Sciences,17(2),232-236.
MLA	Zou Chunjing,et al."Growth responses of Picea mongolica seedlings to defoliation rate".Journal of Environmental Sciences 17.2(2005):232-236.