Volume 32 Issue 2
Mar.  2015
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GONG Hede, YAN Teng, PENG Yihang, ZHENG Li, MA Yuewei. Seedling growth of Symplocos ramosissima with manually controlled experimental conditions in the Ailaoshan Mountains, Yunnan Province[J]. Journal of Zhejiang A&F University, 2015, 32(2): 237-243. doi: 10.11833/j.issn.2095-0756.2015.02.010
Citation: GONG Hede, YAN Teng, PENG Yihang, ZHENG Li, MA Yuewei. Seedling growth of Symplocos ramosissima with manually controlled experimental conditions in the Ailaoshan Mountains, Yunnan Province[J]. Journal of Zhejiang A&F University, 2015, 32(2): 237-243. doi: 10.11833/j.issn.2095-0756.2015.02.010

Seedling growth of Symplocos ramosissima with manually controlled experimental conditions in the Ailaoshan Mountains, Yunnan Province

doi: 10.11833/j.issn.2095-0756.2015.02.010
  • Received Date: 2014-05-19
  • Rev Recd Date: 2014-10-10
  • Publish Date: 2015-04-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Seedling growth of Symplocos ramosissima with manually controlled experimental conditions in the Ailaoshan Mountains, Yunnan Province

doi: 10.11833/j.issn.2095-0756.2015.02.010

Abstract: It is very important to study the seedlings growth under the condition of moisture and light. To observe the habitat preference of Symplocos ramosissima seedlings in the Ailaoshan Mountains, Yunnan Province, seedlings were transplanted in different environmental conditions. The basal stem diameter, height, leaf number, specific leaf area(SLA), root shoot ratio, relative mass growth rate, total dry weight and survival rate of seedling were measured both in forest habitats (including understory, gap center, and gap edge) and artificially created shading conditions outside of the forest. Results of early growth showed higher values in gap center than in gap edge and the lowest under the forest canopy. Artificial shading experiments revealed a positive relationship to an increase in light intensity; whereas SLA decreased. Also, visible light intensity increased. With artificial shading even for similar light intensities, seedling growth was better than in forest habitats. At a light level of 28.36%, seedling growth was highest at 38.00% soil moisture content, and at an 8.10% light level it was best at 48.0% soil moisture content. Early growth at 2.4% light exhibited no pattern with soil moisture. At 20.00% soil moisture (drought stress) and 28.4% light, seedlings grew slowly. Thus, low soil moisture and drought stress can inhibit the growth of seedlings, but seedling growth of S. ramosissima at low light levels was not sensitive to the soil moisture gradient. [Ch, 3 tab. 23 ref.]

GONG Hede, YAN Teng, PENG Yihang, ZHENG Li, MA Yuewei. Seedling growth of Symplocos ramosissima with manually controlled experimental conditions in the Ailaoshan Mountains, Yunnan Province[J]. Journal of Zhejiang A&F University, 2015, 32(2): 237-243. doi: 10.11833/j.issn.2095-0756.2015.02.010
Citation: GONG Hede, YAN Teng, PENG Yihang, ZHENG Li, MA Yuewei. Seedling growth of Symplocos ramosissima with manually controlled experimental conditions in the Ailaoshan Mountains, Yunnan Province[J]. Journal of Zhejiang A&F University, 2015, 32(2): 237-243. doi: 10.11833/j.issn.2095-0756.2015.02.010

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