克里雅河尾闾沙漠腹地绿洲胡杨年轮特征分析  

Analysis of Annual Rings Characteristics of Populus euphratica at the Oasis of the Tail of Keriya River in the Taklimakan Desert

作　　者：安外尔·阿卜杜热伊木 戴岳 师庆东[1,2] 张峰 Anwaier Abudureyimu;DAI Yue;SHI Qingdong;ZHANG Feng(School of Ecology and Environment,Xinjiang University,Urumqi Xinjiang 830017,China;Key Laboratory of Oasis Ecology,Urumqi Xinjiang 830017,China;School of Geographical Sciences and Key Laboratory of Smart City and Environment Modeling of Higher Education Institute,Xinjiang University,Urumqi Xinjiang 830017,China)

机构地区：[1]新疆大学生态与环境学院,新疆乌鲁木齐830017 [2]新疆绿洲生态自治区重点实验室,新疆乌鲁木齐830017 [3]新疆大学地理科学学院智慧城市与环境建模自治区普通高校重点实验室,新疆乌鲁木齐830017

出　　处：《新疆大学学报（自然科学版）（中英文）》2022年第2期213-218,共6页Journal of Xinjiang University(Natural Science Edition in Chinese and English)

基　　金：国家自然科学新疆联合基金重点项目(U1703237);国家自然科学基金地区基金项目(32160260);国家自然科学基金青年基金项目(31800613);国家自然科学基金项目(U1503381)。

摘　　要：本文以塔克拉玛干沙漠腹地克里雅河尾闾达理雅博依绿洲的胡杨群落、胡杨-柽柳群落中的16棵胡杨(Populus euphratica)为研究对象,利用树木年轮学方法测取胡杨年轮的宽度,结合单因素方差分析对比了三处观测点胡杨年轮2010―2018年的生长特征.结果表明:(1)2010―2018年胡杨年轮宽度总体上随着时间呈现变窄的趋势;(2)该绿洲西部的胡杨群落,胡杨年轮宽度随着时间的推移呈现窄-宽-窄的特征,年际差异极显著(P=0.006<0.05),该绿洲中部的胡杨群落年轮宽度随着时间无明显变化规律,年际差异极显著(P=0.005<0.05);(3)该绿洲西部的胡杨-柽柳群落中,胡杨年轮宽度随着时间呈现变窄的趋势,年际差异不显著(P=0.746>0.05);(4)胡杨群落中洪水与地下水埋深的变化、种内竞争及河流水量的变化均有可能影响胡杨的年轮宽度变化;(5)胡杨-柽柳群落中胡杨与柽柳的种间竞争可能影响胡杨的年轮宽度变化.In this paper, sixteen Populus euphratica in P. euphratica community and P. euphratica-Tamarix sp.community were chosen as the research object at the oasis of the tail of Keriya River in the Taklimakan Desert.The tree ring method was used to obtain tree ring width of P. euphratica at three observation points and variation of tree ring width of sampling were compared through the one-way ANOVA in 2010―2018. The result shows that:(1) Generally, annual ring width of P. euphratica at three observation points showed a trend of narrowing from 2010 to 2018;(2) Tree ring width of P. euphratica growing in the western oasis of P. euphratica community presented the trends of narrowing-widing-narrowing with time, the interannual difference was significant(P =0.006<0.05);Tree ring width of P. euphratica growing in the central oasis of P. euphratica community had no obvious regularity with time, the interannual difference was significant(P =0.005<0.05);(3) The annual ring width of P. euphratica growing in the western oasis of P. euphratica-Tamarix sp. community presented a trend of narrowing with time, however,the interannual difference was not significant(P =0.746>0.05);(4) Changes in flood and groundwater depth, intraspecies competition and river water quantity in P. euphratica community may affect the annual ring width of P.euphratica;(5) The interspecific competition existed between P. euphratica and Tamarix sp. in Populus euphraticaTamarix sp. community may affect the annual ring width of P. euphratica.

关 键 词：达理雅博依 尾闾 年轮宽度 胡杨 年际差异 

分 类 号：Q948.1[生物学—植物学]