沙漠腹地天然绿洲胡杨和柽柳叶片δ13C值对不同地下水埋深的响应

doi:10.13287/j.1001-9332.202004.004

应用生态学报 ›› 2020, Vol. 31 ›› Issue (4): 1083-1087.doi: 10.13287/j.1001-9332.202004.004

沙漠腹地天然绿洲胡杨和柽柳叶片δ¹³C值对不同地下水埋深的响应

麦尔哈巴·尼加提^1,2, 戴岳^1,2,3*, 师庆东^1,2, 李涛^1,2, 肖合来提·巴义^1,2, 安外尔·阿布杜热伊木^1,2

¹新疆大学资源与环境科学学院, 乌鲁木齐 830046;
²绿洲生态教育部重点实验室, 乌鲁木齐 830046;
³新疆大学干旱生态环境研究所, 乌鲁木齐 830046

收稿日期:2019-11-20 出版日期:2020-04-20 发布日期:2020-04-20
通讯作者: *E-mail: happydaiyue@163.com
作者简介:麦尔哈巴·尼加提, 女, 1995年生, 硕士研究生。主要从事植物生态学研究。E-mail: 1102864406@qq.com
基金资助:
国家自然科学基金青年基金项目(31800613)和国家自然科学基金新疆联合基金重点项目(U1703237)资助

Response of foliar δ¹³C in Populus euphratica and Tamarix sp. to different groundwater depths in the oasis of desert hinterland

MARHABA·Nijat^1,2, DAI Yue^1,2,3*, SHI Qing-dong^1,2, LI Tao^1,2, XIAO HELAITI·Bayi^1,2, ANWAIER·Abudureyimu^1,2

¹College of Resource and Environmental Sciences, Xinjiang University, Urumqi 830046, China;
²Key Laboratory of Oasis Ecology, Ministry of Education, Urumqi 830046, China;
³Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China.

Received:2019-11-20 Online:2020-04-20 Published:2020-04-20
Contact: *E-mail: happydaiyue@163.com
Supported by:
This work was supported by the Youth Fund Project of National Natural Science Foundation of China (31800613) and the Key Project of Joint Xinjiang and National Natural Science Foundation of China (U1703237).

摘要/Abstract

摘要： 干旱区植物的水分利用效率对植物的分布及水分利用状况具有重要意义。基于不同地下水埋深条件下沙漠腹地绿洲优势种胡杨和柽柳叶片δ¹³C值,分析了胡杨和柽柳的水分利用效率对不同地下水埋深的响应。结果表明: 随着地下水埋深由2.1 m增加到4.3 m,柽柳叶片的δ¹³C值先略有增加后处于较为稳定状态,柽柳采取较为稳定的水分利用效率适应干旱环境;胡杨叶片的δ¹³C值呈现先略有减小后增加的趋势,胡杨通过提高水分利用效率的策略适应干旱胁迫。同一地下水埋深条件下柽柳叶片的δ¹³C值高于胡杨叶片,表明柽柳的水分利用效率高于胡杨。

关键词: 地下水埋深, 沙漠腹地, 水分利用效率, δ¹³C

Abstract: Water use efficiency of plants in arid regions plays a key role in affecting the distribution and water use of plants. We analyzed the responses of water use efficiency of Populus euphratica and Tamarix sp. to different groundwater depths by measuring foliar δ¹³C of the two dominant species in a desert hinterland. The results showed that as the groundwater depth increased from 2.1 m to 4.3 m, foliar δ¹³C of Tamarix sp. increased slightly and remained relatively stable. Tamarix sp. had a more stable water use efficiency to adapt to the arid environment. Foliar δ¹³C of P. euphratica first slightly decreased and then increased. P. euphratica improved its water use efficiency to adapt to drought stress. At the same groundwater depth, foliar δ¹³C of Tamarix sp. was higher than that of P. euphratica, indicating that water use efficiency of Tamarix sp. was higher than that of P. euphratica.

Key words: water use efficiency, hinterland of the desert, groundwater depth, δ¹³C

麦尔哈巴·尼加提, 戴岳, 师庆东, 李涛, 肖合来提·巴义, 安外尔·阿布杜热伊木. 沙漠腹地天然绿洲胡杨和柽柳叶片δ¹³C值对不同地下水埋深的响应[J]. 应用生态学报, 2020, 31(4): 1083-1087.

MARHABA·Nijat, DAI Yue, SHI Qing-dong, LI Tao, XIAO HELAITI·Bayi, ANWAIER·Abudureyimu. Response of foliar δ¹³C in Populus euphratica and Tamarix sp. to different groundwater depths in the oasis of desert hinterland[J]. Chinese Journal of Applied Ecology, 2020, 31(4): 1083-1087.

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沙漠腹地天然绿洲胡杨和柽柳叶片δ¹³C值对不同地下水埋深的响应

Response of foliar δ¹³C in Populus euphratica and Tamarix sp. to different groundwater depths in the oasis of desert hinterland

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