防火林带不同树种枝叶持水率研究

doi:10.3969/j.jssn.1000-2006.2011.05.034

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南京林业大学学报（自然科学版） ›› 2011, Vol. 35 ›› Issue (05): 151-154.doi: 10.3969/j.jssn.1000-2006.2011.05.034

防火林带不同树种枝叶持水率研究

江津凡,万福绪*

南京林业大学,江苏省林业生态工程重点实验室,江苏南京210037

出版日期:2011-09-30 发布日期:2011-09-30
基金资助:
收稿日期：2010-09-07修回日期：2010-12-20基金项目：江苏省农业三项工程项目(013010068)作者简介：江津凡(1984—),硕士生。*万福绪(通信作者),教授。Email:fxwan@njfu.edu.cn。

Study on leaves and branches moisture of eight different tree species for fireprevention forest belts in Xuyi county,China

JIANG Jinfan,WAN Fuxu*

Jiangsu Key Laboratory of Forestry Ecological Engineering, Nanjing Forestry University, Nanjing 210037, China

Online:2011-09-30 Published:2011-09-30

摘要/Abstract

摘要： 通过对盱眙香樟、女贞、侧柏、广玉兰、杨树、海桐、油茶和淡竹等8种树种的鲜枝叶含水率和枯枝叶最大持水率的测定,分析了不同木质可燃物的失水率。结果表明:(1)杨树的鲜叶含水率、鲜枝含水率、枯叶最大持水率和枯枝最大持水率等4种含水率都明显大于其他树种,女贞、广玉兰、海桐、油茶等4种植物的4种含水率也相对较高;侧柏和淡竹除了枯叶最大持水率稍高外,其他3种含水率较低,香樟枯枝最大持水率较低,其他3种含水率中等。(2)广玉兰和杨树的鲜叶和鲜枝失水速率都是最慢的,而侧柏和油茶较快,其他树种为中等失水速率;枯枝叶失水都较慢的有杨树、广玉兰和女贞,其次为香樟、侧柏,其他树种有的枯叶失水快,有的枯枝失水快。

Abstract: The moisture of fresh leaves and branches and the maximum waterholding rate of withered leaves and branches at 8 tree species in Xuyi county were determined in laboratory, and different fuel moisture loss were analyzed. The results showed that the moisture of fresh leaves, fresh branches, leaf litter and branch litter in Populus tomentosa was the highest among the 8 tree species. Ligustrum lucidum, Magnolia grandiflora Linn., Pittosporum tobira and Camellia oleifera Abel. were in the second. The maximum waterholding rate of leaf litter in Platycladus orientalis and Phyllostachys glauca McClure was higher than those in the other 6 tree species. However, the maximum waterholding rate in fresh leaves, fresh branches and branch litter were lower than those of the others. The maximum waterholding rate of withered branches in Cinnamomum camphora Presl. was significant lower, and of fresh leaves, fresh branches and leaf liter were in medium. On the other hand, fresh leaves and branches moisture loss in M. grandiflora Linn. and P. tomentosa was the slowest, while P. orientalis and C.oleifera Abel were the fastest. Withered leaves which had slow moisture loss were P. tomentosa, M.grandiflora linn and L. lucidum, but C. camphora Presl. loss moisture faster than other tree species for withered leaves.

中图分类号:

S7185

江津凡,万福绪. 防火林带不同树种枝叶持水率研究[J]. 南京林业大学学报（自然科学版）, 2011, 35(05): 151-154.

JIANG Jinfan,WAN Fuxu*. Study on leaves and branches moisture of eight different tree species for fireprevention forest belts in Xuyi county,China[J].Journal of Nanjing Forestry University (Natural Science Edition), 2011, 35(05): 151-154.DOI: 10.3969/j.jssn.1000-2006.2011.05.034.

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防火林带不同树种枝叶持水率研究

Study on leaves and branches moisture of eight different tree species for fireprevention forest belts in Xuyi county,China

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