Growth strategy of <i>Rhus typhina</i> clonal ramets in the hilly area of the Taihang Mountains

ZHANG Ming-ru; WEN Guo-sheng; YAN Wen-hong; HOU ping; ZHAI Ming-pu; ZHANG Jin

Volume 25 Issue 3

Jun. 2018

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ZHANG Ming-ru, WEN Guo-sheng, YAN Wen-hong, HOU ping, ZHAI Ming-pu, ZHANG Jin. Growth strategy of Rhus typhina clonal ramets in the hilly area of the Taihang Mountains[J]. Journal of Zhejiang A&F University, 2008, 25(3): 282-288.

Citation:

ZHANG Ming-ru, WEN Guo-sheng, YAN Wen-hong, HOU ping, ZHAI Ming-pu, ZHANG Jin. Growth strategy of Rhus typhina clonal ramets in the hilly area of the Taihang Mountains[J]. Journal of Zhejiang A&F University, 2008, 25(3): 282-288.

Growth strategy of Rhus typhina clonal ramets in the hilly area of the Taihang Mountains

1.
School of Tourism and Health, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China;
2.
School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China;
3.
Department of Tourism, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China;
4.
Key Laboratory for Silviculture of the Ministry of Education, Beijing Forestry University, Beijing 100083, China

Received Date: 2007-05-10
Rev Recd Date: 2007-11-02
Publish Date: 2008-06-10

Abstract

To understand the growth strategies of clonal ramets from Rhus typhina, an exotic tree species, in the shrub-grassland of the hilly area of the Taihang Mountains in north China, a relevant analysis was conducted on the heterogeneous growth characteristics of R. typhina clonal ramets in two different habitats, farmland and shrub-grassland, using a continuous quadrat method. The major results for clonal ramets of R. typhina were as follows:1) the front part of the lateral root diameter was two times larger than the back, and growth rates of crown width were faster than the height;2) there was a power function relationship for crown width and tree height, with the heterogeneous growth of the front and back parts of the lateral root diameter more stable on farmland than in the shrub-grassland; and 3) ramets on farmland were 31 times greater than in the shrub-grassland ecotype. A growth strategy with much faster lateral branch and leaf growth than tree height, enabled clonal ramets of R. typhina to form a dominant synusium resulting in gradual disappearance of the native deciduous shrub and grass synusiums.
- silviculture,
- Rhus typhina,
- allometry,
- colonize,
- shrub-grassland

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Growth strategy of Rhus typhina clonal ramets in the hilly area of the Taihang Mountains

1. School of Tourism and Health, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China;

2. School of Forestry and Biotechnology, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China;

3. Department of Tourism, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China;

4. Key Laboratory for Silviculture of the Ministry of Education, Beijing Forestry University, Beijing 100083, China

Received Date: 2007-05-10

Rev Recd Date: 2007-11-02

Publish Date: 2008-06-10

Key words:

Abstract: To understand the growth strategies of clonal ramets from Rhus typhina, an exotic tree species, in the shrub-grassland of the hilly area of the Taihang Mountains in north China, a relevant analysis was conducted on the heterogeneous growth characteristics of R. typhina clonal ramets in two different habitats, farmland and shrub-grassland, using a continuous quadrat method. The major results for clonal ramets of R. typhina were as follows:1) the front part of the lateral root diameter was two times larger than the back, and growth rates of crown width were faster than the height;2) there was a power function relationship for crown width and tree height, with the heterogeneous growth of the front and back parts of the lateral root diameter more stable on farmland than in the shrub-grassland; and 3) ramets on farmland were 31 times greater than in the shrub-grassland ecotype. A growth strategy with much faster lateral branch and leaf growth than tree height, enabled clonal ramets of R. typhina to form a dominant synusium resulting in gradual disappearance of the native deciduous shrub and grass synusiums.

Growth strategy of Rhus typhina clonal ramets in the hilly area of the Taihang Mountains

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