当前位置: 首页 > 文章 > 西藏色季拉山急尖长苞冷杉幼苗种群结构及空间格局研究 山东林业科技 2013,43 (5) 1-5+57
Position: Home > Articles > The Population Structure and Spatial Distribution Pattern of Abies georgei var.smithii Seedling Journal of Shandong Forestry Science and Technology 2013,43 (5) 1-5+57

西藏色季拉山急尖长苞冷杉幼苗种群结构及空间格局研究

作  者:
王瑞红;向巴曲珍;潘刚
单  位:
西藏农牧学院高原生态所
关键词:
急尖长苞冷杉;幼苗;种群结构;分布格局
摘  要:
在色季拉山海拔3700m~4200m沿垂直等高线方向设置固定样地样方调查的基础上,分析急尖长苞冷杉幼苗的种群结构、空间分布格局。结果表明:色季拉山不同海拔不同坡向各年龄级及高度级急尖长苞冷杉幼苗均有分布,年龄以6年以下生为主,高度以Ⅳ高度级以下为主;色季拉山急尖长苞冷杉幼苗总体上呈聚集分布,在阳坡3700m、阳坡3800m、阳坡3900m、阴坡3900m、阴坡4100m处聚集程度极显著;在调查区域内,不同海拔同一坡向急尖长苞冷杉幼苗呈正态分布,且幼苗数量比较丰富,有较好的天然更新基础。
译  名:
The Population Structure and Spatial Distribution Pattern of Abies georgei var.smithii Seedling
作  者:
WANG Ruihong;Xiang baquzhen;PAN Gang;Institute of plateau Ecology,Tibet Agriculture and Animal Husbandry college;
关键词:
Abies georgei var.smithii;;seedling;;population structure;;spatial distribution pattern
摘  要:
Based on a comprehensive investigation on Abies georgei var.smithii in different slopes between the altitudes 3700 to 4200mat the Mountain Sejila.Analysis was carried out on the seedlings population structure and spatial distribution pattern of Abies georgei var.smithii.The results showed that:on the different altitudes and different slopes each age and height seedlings of Abies georgei var.smithii were distributed,the age mainly below 6 years,height was dominated below gradeⅣ;At the Mountain Sejila,seedlings of Abies georgei var.smithii were generally aggregated distribution,the aggregated distribution in sunny slope 3700m,3800m,3900mand shady 3900m,4100mplace were very significant;In the survey area,the same slope at different altitudes the seedlings of Abies georgei var.smithii showed a normal distribution,and the number of seedlings were riched,a better basis for natural regeneration.

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