Expanded Gap Space Nutrition Index of Mangrove | 红树林扩展林窗空间营养指数
2013
Huang Jianjian, Central South University of Forestry and Technology, Changsha (China) | Li Jiping, Central South University of Forestry and Technology, Changsha (China) | Liu Suqing, Central South University of Forestry and Technology, Changsha (China)
chinois. 提出以林窗空间体积代替林窗面积进行林窗研究的方法，研究广东湛江高桥红树林保护区林窗空间体积对林窗秋茄幼苗生长的影响。结果表明：秋茄林窗空间体积能显著影响秋茄幼苗的生长，林窗空间体积为120～160m. 时秋茄幼苗可获得最佳生长空间，林窗空间体积过大会抑制秋茄幼苗生长。根据林窗具有影响幼苗高和冠幅的空间特征，结合盖度的生态学含义，提出红树林林窗空间营养指数新概念，给出其定义和量化公式，并进行实例计算，结果表明Ⅳ级（林穿空间体积为120～160m. ）林窗空间营养指数最高。
Afficher plus [+] Moins [-]anglais. This article puts forward the research method of gap space volume instead of gap plane area to develop the survey of the forest gap space size＇ s impact on the seedlings growth. This method was referenced to study the forest gap Kandelia candel seedlings of health Kandelia candel forest in Mangrove Nation Natural Reserve at Zhanjiang, Guangdong province. The result showed that the forest gap space size could significantly affect the growth of Kandelia candel seedlings. The best growth space for Kandelia candel seedlings in the forest gap space volume was 120 - 160 m3. Fm＇e~t gap space volume is too large to inhibit the Kandelia candel seedlings growth. Based on the space characteristics of ti~e seedling height and crown breadth influenced by the forest gap, and combined with the ecology meaning of coverage, this paper propose the new concept of mangrove forest gap space nutrition index, and gives it the definition and quantitative formula, and proceeds the calculation of case. The result indicates that the highest index is the IV gap space nutrition index.
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