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| 祁连山青海云杉林空间结构分析 | |
| 引用本文： | 金铭,李毅,刘贤德,赵维俊,赵中华,敬文茂.祁连山青海云杉林空间结构分析[J].干旱区地理,2012,35(4):587-593. |
| 作者姓名： | 金铭 李毅 刘贤德 赵维俊 赵中华 敬文茂 |
| 作者单位： | 1. 甘肃农业大学林学院,甘肃兰州730070;甘肃省祁连山水源涵养林研究院,甘肃张掖734000 2. 甘肃农业大学林学院,甘肃兰州,730070 3. 甘肃省祁连山水源涵养林研究院,甘肃张掖,734000 4. 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091 |
| 基金项目： | 国家林业局林业公益性行业科研专项，甘肃省科技计划 |
| 摘 要： | 通过调查祁连山青海云杉天然林1块100 m×100 m的大样地，利用其直径分布和混交度、角尺度、大小比数、开敞度4种结构参数对其空间结构进行了分析，结果表明：（1）青海云杉直径分布表明该林分是典型的异龄林直径结构；（2）青海云杉林地青海云杉为顶级群落且呈单种聚集，空间隔离程度为零度混交；（3）青海云杉直径大小比数和树高大小比数平均数均为0.49，生长上处于中庸状态，大小分化程度一般；（4）青海云杉林角尺度分布呈正态分布，其平均值为0.526，从林分水平分布格局上看，青海云杉分布是以团状分布的；（5）青海云杉开敞度大小为1.667，生长空间很充足。相关研究结果对于今后青海云杉林的合理经营能起到一定的借鉴意义。 |
| 关 键 词： | 祁连山 青海云杉 直径分布 混交度 大小比数 角尺度 开敞度 |
| 收稿时间： | 2011-12-07; |
Spatial structure characteristic of Picea crassifolia in Qilian Mountains |
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| JIN Ming , LI Yi , LIU Xian-de , ZHAO Wei-jun , ZHAO Zhong-hua , JING Wen-mao.Spatial structure characteristic of Picea crassifolia in Qilian Mountains[J].Arid Land Geography,2012,35(4):587-593. | |
| Authors: | JIN Ming LI Yi LIU Xian-de ZHAO Wei-jun ZHAO Zhong-hua JING Wen-mao |
| Institution: | 1College of Forestry,Gansu Agricultural University, Lanzhou 730070, Gansu, China;2Academy of Water Resources Conservation Forests in Qilian Mountains of Gansu Province, Zhangye 734000, Gansu, China;3Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration Research Institute of Forestry, CAF Beijing 100091,China. |
| Abstract: | Based on the investigation of one large plot which is 100 m×100 m of Picea crassifolia in the Qilian Mountains, using 4 kinds of structural parameters of Picea crassifolia, which are diameter distribution and mingling, uniform angle index, neighborhood comparison and open degree, to analyze its spatial structure, the results show as follows: (1)The diameter distribution of Picea crassifolia stands indicates that it is typical uneven aged diameter structure; (2) Picea crassifolia is climax community and single gathered stands, space isolation degree is zero nitrogen fixation;(3) Mean value of diameter neighborhood comparison and height neighborhood comparison of Picea crassifolia are 0.49, its growth is in moderation state, and size differentiation degree is general; (4) Uniform angle index of Picea crassifolia is normal distribution and average of it is 0.526, and distribution of Picea crassifolia is round state from the stand level distribution pattern; (5) Open degree of Picea crassifolia is 1.667, for the growth space is very sufficient. The results of the study can play a certain role in Picea crassifolia reasonable management. |
| Keywords: | Qilian Mountains Picea crassifolia diameter distribution mingling neighborhood comparison uniform angle index open degree |
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