| 溪县天然常绿阔叶林研究Ⅰ.面积动态和转型 |
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| 引用本文： | 陈清平.溪县天然常绿阔叶林研究Ⅰ.面积动态和转型[J].福建林学院学报,2001,21(1). |
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| 作者姓名： | 陈清平 |
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| 作者单位： | 明溪县森林资源管理站, |
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| 摘 要： | 以明溪县森林资源清查体系的天然常绿阔叶林固定样地的初查、复查资料为基础，对间隔11 a的天然常绿阔叶林的变化和转型进行分析.结果表明：1985年的天然常绿阔叶林，在11 a中转型率达到37.4%，年均转型率为4.2%；其它林型(人工林、针叶林等)和地类(采伐迹地和宜林地等)转型和新增的天然常绿阔叶林占现有(1996年)阔叶林的27.8%.由于马尾松成为首选的择伐木，天然阔叶林中的针叶树大量减少，天然阔叶林趋于纯林化，1985年留存下的天然常绿阔叶林中近、成过熟林人为干扰为轻度、中度和严重的各占1/3左右，至少要禁伐11～13 a才可以恢复到1985年的森林景观水平.
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| 关 键 词： | 天然阔叶林 转型 |
Studies on the Natural Evergreen Broad-leaved Forest in Mingxi County Ⅰ.Area Dynamic and Type Change |
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| CHEN Qing-ping.Studies on the Natural Evergreen Broad-leaved Forest in Mingxi County Ⅰ.Area Dynamic and Type Change[J].Journal of Fujian College of Forestry,2001,21(1). |
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| Authors: | CHEN Qing-ping |
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| Abstract: | Based on the data of the initial investigation and reexamination of the natural ever-green broad-leaved forest for forest resources checking, this paper analyzed the dynamic of the natural ever-green broad-leaved forest during 11 years. The results showed that the change rate of the natural ever-green broad-leaved forest from 1985 was reached 37.4 percent during 11 years which mean it was 4.2 percent per year; that the numbers of other forest types (plantation, needle-leaved, et al.) and land use types (cutover, land suitable for planting, et al.) having been changed their type and the added natural ever-green broad-leaved forest accounted for 27.8 percent of the broad-leaved forests in 1996. Because pinus massoniana tree become the first tree for selective cutting, the needle-tree in the natural evergreen broad-leaved forest deduced fast and the natural evergreen broad-leaved forest tended to become pure broad-leaved forest. The forests disturbed by light, middle and serious degree were almost equally in young, middle, mature and over-mature forests kept from 1985, we must spent at least 11～13 years to renew the forest landscape level in 1985 by forbidding cutting |
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