沙漠腹地达理雅博依天然绿洲植物群落特征分析

张文奇; 周小龙; 尼加提·卡斯木; 迪丽尼格尔·艾合买提; 比拉力·依明; 李浩; 师庆东

doi:10.13568/j.cnki.651094.2019.03.004

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沙漠腹地达理雅博依天然绿洲植物群落特征分析

专栏:绿洲生态学 | 更新时间：2026-01-21

- 沙漠腹地达理雅博依天然绿洲植物群落特征分析
- 沙漠腹地达理雅博依天然绿洲植物群落特征分析
- 新疆大学学报（自然科学版中英文） 2019年36卷第3期页码：276-286
- 作者机构：
  
  1. 新疆大学资源与环境科学学院
  2. 绿洲生态教育部重点实验室
  3. 新疆大学干旱生态环境研究所
- 作者简介：
- 基金信息：
  
  国家自然科学基金(U1703237)
- DOI：10.13568/j.cnki.651094.2019.03.004
  中图分类号： Q948
- 纸质出版：2019
- 稿件说明：
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[1]张文奇,周小龙,尼加提·卡斯木,等.沙漠腹地达理雅博依天然绿洲植物群落特征分析[J].新疆大学学报(自然科学版),2019,36(03):276-286.
[1]张文奇,周小龙,尼加提·卡斯木,等.沙漠腹地达理雅博依天然绿洲植物群落特征分析[J].新疆大学学报(自然科学版),2019,36(03):276-286. DOI： 10.13568/j.cnki.651094.2019.03.004.

DOI：10.13568/j.cnki.651094.2019.03.004.

摘要

达里雅博依绿洲地处塔克拉玛干大沙漠腹地

是人迹罕至的天然绿洲.在这种特殊生境下

探明当地植被的生长状况、群落组成和结构特征等信息对该地区的发展及后续研究具有重要意义.本研究在绿洲内部随机选取26个样方

利用经典样方法进行实地调查

记录样方内乔木、灌木和草本植物的多度和常见的基本指标(高度、冠幅、胸径和枯枝率).利用单因素方差分析和关联系数等统计方法对绿洲植物群落的物种组成

功能性状变化

年龄结构、健康状况和种间关系进行分析讨论.结果表明:(1)达理雅博依绿洲被子植物共有18个种

涵盖了10科15属.(2)胡杨的相对多度、相对盖度、相对高度从南到北逐渐增加;柽柳相对盖度由南向北呈下降趋势

相对多度在中部最高;芦苇主要分布在绿州南部.(3)柽柳种群年龄结构表现为金字塔形

处在一个高繁殖率的时期;胡杨种群年龄结构表现为倒金字塔形

属于衰退型种群;衰退型胡杨数量占绿洲内胡杨总数的比例最高(40%)

健康型的胡杨数量很少.(4)研究结果暗示胡杨与柽柳之间存在相互促进作用

二者间可能在水分和养分的利用方式上存在生态位的分化

进而降低了对资源的竞争.

Abstract

Daliyaboyi oasis is located in the hinterland of Taklamakan Desert

only thousands of people live on this oasis due to the poor natural condition. In this special habitat

it is of great significance to explore the growth status

community composition and structural characteristics of local vegetation for the development and followup research of this area. In total

26 plots were conducted randomly in middle July in 2018 and the abundance and basic indicators(height

crown breadth

diameter at breast height and ratio of deadwood) of each tree

wood and herb were recorded. Species composition

functional traits variations

population age structure and health conditions of dominant species and the interact relationships between dominant species were analyzed by one-way ANOVA and correlation coefficient. Our results showed that:(1) there were a total of 10 families

15 genera and18 species of angiosperms in Daliyaboyi Oasis.(2) The relative abundance

relative height and relative cover of Populus euphratica were increased from south to north in this oasis; The relative coverage of Tamarix is decreasing from south to north

and the relative abundance is the highest in the middle; Phragmites australis distributed mainly in the south oasis.(3) The age structure of the Tamarix population was pyramidal patterns

it was belong to increasing; The age structure of Populus euphratica was reversed pyramid patterns

the population of Populus euphratica was belong to descending; we found that the ratio of senesced individuals was the highest(40%)

but the health individuals were scarce.(4) Our results also indicated that facilitation effect existed between Populus euphratica and Tamarix

the two species may use water and nutrient via in different utilization ways thus induced stable niche division and reduced resources competition.

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