华北落叶松边材透水性与叶面积空间分布的相关性的探讨*

林业科学 ›› 1995, Vol. 31 ›› Issue (3): 269-274.

华北落叶松边材透水性与叶面积空间分布的相关性的探讨^*

刘志刚¹,马钦彦¹,潘向丽²

1. 北京林业大学森林资源与环境学院, 北京 100083
2. 广西南宁市郊区林业局, 南宁 530001

收稿日期:1994-01-14 出版日期:1995-05-25 发布日期:1995-05-25

AN APPROACH TO RELATIONSHIP BETWEEN SAPWOOD PERMEABILITY AND DISTRIBUTION OF LEAF AREA FOR LARIX PRINCIPIS-RUPPRECHTII

Zhigang Liu¹,Qinyan Ma¹,Xiangli Pan²

1. College of Forest Resources and Environment BFU Beijing 100083
2. Suburbs Forestry Bureau Nanning Nanning 530001

Received:1994-01-14 Online:1995-05-25 Published:1995-05-25

摘要/Abstract

摘要：

对华北落叶松林单木累积叶面积、树干边材面积、树干边材透水率及透水量的垂直分布规律及其相互关系进行了探讨。研究表明, 引入树干边材面积与边材透水率的积可明显提高估测树冠叶面积垂直分布的精度, 进而为精确估测林分的叶面积空间分布提供了新途径。

关键词: 透水性, 累积叶面积, 边材面积, 华北落叶松, 垂直分布

Abstract:

The vertical distribution of cumulative leaf area, bole sapwood area, bole sapwood permeability and sapwood area sapwood permeability, the relationships between cumulative leaf area and sapwood area and between cumulative leaf area and sapwood area sapwood permeability for individual trees of Larix principis-rupprechtii Mayr were examined using a physiological analysis based on Darcy's law. Sapwood area and sapwood area sapwood permeability decreased linearly within the crown with increasing height above the ground.Below the crown, the change trend of sapwood area turned out contrary to the sapwood area sapwood permeability, Sapwood area sapwood permeability allowed an accurate prediction of leaf area. The sapwood resistances to water flow from the ground to the 6.5m height above the ground, from the ground to the base of the live crown and from the base of live crown to the 6.5m height above the ground, were respectively 0.93241 atm. s. cm^-8, 0.33000 atm.s. cm^-8 that was 35.39 percentage of the total resistance and 0.60241 atm. s.cm^-8 that was 64.61 percentage of the total resistance.

Key words: Permeability, Cumulative leaf area, Sapwood area, Larix principis-rupprchtii, Vertical distribution

刘志刚,马钦彦,潘向丽. 华北落叶松边材透水性与叶面积空间分布的相关性的探讨^*[J]. 林业科学, 1995, 31(3): 269-274.

Zhigang Liu,Qinyan Ma,Xiangli Pan. AN APPROACH TO RELATIONSHIP BETWEEN SAPWOOD PERMEABILITY AND DISTRIBUTION OF LEAF AREA FOR LARIX PRINCIPIS-RUPPRECHTII[J]. Scientia Silvae Sinicae, 1995, 31(3): 269-274.

图/表 2

参考文献 14

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