Analysis on Water Sources of Riverbank Vegetation in Tributary of Yellow River Based on Stable Isotope Technique

doi:10.13961/j.cnki.stbctb.2021.05.011

Home > Archive>Volume 41, Issue 5, 2021 >75-82,91. DOI:10.13961/j.cnki.stbctb.2021.05.011

Analysis on Water Sources of Riverbank Vegetation in Tributary of Yellow River Based on Stable Isotope Technique
DOI:
                        10.13961/j.cnki.stbctb.2021.05.011
                    
Author:
                        Yu XiaowenYu Xiaowen
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
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Liu HuaminLiu Huamin
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China;Collaborative Innovation Center for Grassland Ecological Security(Jointly Supported by the Ministry of Education of China and Inner Mongolia Autonomous Region), Hohhot, Inner Mongolia 010021, China;Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Hohhot, Inner Mongolia 010021, China
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Wang LixinWang Lixin
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China;Collaborative Innovation Center for Grassland Ecological Security(Jointly Supported by the Ministry of Education of China and Inner Mongolia Autonomous Region), Hohhot, Inner Mongolia 010021, China;Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Hohhot, Inner Mongolia 010021, China
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Wang QiWang Qi
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
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Liu XuhuaLiu Xuhua
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
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Wen LuWen Lu
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China;Collaborative Innovation Center for Grassland Ecological Security(Jointly Supported by the Ministry of Education of China and Inner Mongolia Autonomous Region), Hohhot, Inner Mongolia 010021, China;Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Hohhot, Inner Mongolia 010021, China
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Dong ShaogangDong Shaogang
College of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China;Collaborative Innovation Center for Grassland Ecological Security(Jointly Supported by the Ministry of Education of China and Inner Mongolia Autonomous Region), Hohhot, Inner Mongolia 010021, China;Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Hohhot, Inner Mongolia 010021, China
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Pan BaozhuPan Baozhu
State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xian University of Technology, Xian, Shaanxi 710048, China
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Clc Number:Q945.17+1;S124+.2
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Abstract:

[Objective] The hydrogen and oxygen isotope characteristics of plant water under different water gradients were analyzed and compared in order to provide a theoretical basis for the selection of suitable species for ecological protection, erosion control, and sand control in the Yellow River basin.[Methods] Using hydrogen and oxygen stable isotope technology, based on the HYSPLI4 air mass trajectory model and the Bayesian mixed model MixSIAR, the potential water utilization efficiency of dominant plants under different water gradients along the banks of a major tributary of the Yellow River, was analyzed, and water utilization strategies of different plants were then proposed.[Results] The atmospheric vapor was mainly affected by the local evaporation air mass and northwest monsoonal transport during the sampling period. Shallow soil water (0-30 cm) was the main water source for plants in the floodplain. On terraces of the river valley, herbaceous plants mainly used shallow and middle soil water (0-70 cm), while shrubs and tall herbs used water from deeper soil layers (70-100 cm). The phenomenon of ecohydrologic niche separation between plants was apparent.[Conclusion] When water is scarce, shrubs are more competitive because of their water use patterns. Shrubs are suitable species for ecological protection, erosion control, and sand control in the Yellow River basin.

Key words:stable hydrogen and oxygen isotopes;riparian vegetation;plant water source;MixSIAR model;tributaries of the Yellow River

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于晓雯,刘华民,王立新,王奇,刘旭华,温璐,董少刚,潘保柱.基于稳定同位素技术的黄河支流河岸植被水分来源解析[J].水土保持通报英文版,2021,41(5):75-82,91

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Received:April 01,2021
Revised:June 07,2021
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Online: October 25,2021
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