黄河中游湿地优势植物水分利用的同位素研究

摘要
图/表
参考文献
相关文章 (13)

全文: PDF (720 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要在黄河流域生态保护和高质量发展战略背景下，探究沿黄湿地植物水分利用来源是揭示黄河湿地生态系统演替机制的重要基础.本文以汾河入黄典型河口湿地为研究区，分析旱季（5月）和雨季（9月）不同水源（降水、土壤水、地下水和河水）和优势植物的氢氧同位素特征，辨析湿地水分的补给来源和植物水分利用比例，探讨植物干湿季水分利用策略.结果发现，湿地地下水δ¹⁸O、δD值同当地降水和汾河水相比明显贫化，地下水接受当地降水的有效补给仅在雨季，地下水主要来自黄河水侧渗并向汾河排泄.浅层土壤水（0~20cm）主要受降水补给，深层土壤水（20~80cm）则来自毛细地下水和汾河水补给.旱季，不同植物出现了水分利用的生态位分离现象，小型草本小香蒲（Typha minima，（46%±7%））和假苇拂子茅（Calamagrostis pseudophragmites，（95%±1%））对浅层土壤水利用率最高，大型草本水莎草（Juncellus serotinus）主要利用深层土壤水和地下水（89%±23%），而芦苇（Phragmites australis）主要利用河水、地下水和深层土壤水（86%±19%）；雨季草本植物均主要利用深层土壤水、地下水和河水，表现出水分利用的生态位重叠.灌木柽柳（Tamarix chinensis）的水源存在季节转换，旱季均衡利用多种水源，雨季主要利用浅层土壤水（68%±5%）.在未来暖干气候背景下，柽柳灵活的水分利用模式具有更大的生存优势，而草本植物间的水分竞争可能加剧.研究结果可加强对黄河中游湿地生态系统演变机制的认识，为湿地生态环境建设提供科学依据.

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	许秀丽
	李云良
	郭强

关键词 ：黄河中游, 植物水分利用, 水源补给, 氢氧同位素, 河口湿地

Abstract：Plant water source along the Yellow River is considered to be a foundation to reveal mechanisms of regional wetland evolution, due to the national strategy of ecological protection and high quality development of the Yellow River basin. This study investigated the characteristics of hydrogen and oxygen isotopes of rainfall, river water, groundwater, soil water and the xylem water for five dominant plants in the typical dry and rainy seasons during 2019, taking the Fen River estuary wetland as an example. The replenishment water sources of the Fen River wetland were explored using the relationship of δ¹⁸O and δD. The proportions of water uptake by different plants were further quantified using a direct inference method and the IsoSource mixing model. Results show that the isotope values of the wetland groundwater were much lower than those of rainfall and the Fen River. Wetland groundwater was rarely replenished by the local rainfall and mainly supplied by the Yellow River water. The shallow soil water at 0~20cm depth was mainly supplied by rainfall, while the deep soil water at 20~80cm depth was recharged by upward fluxes of groundwater and Fen River water. The proportions of plant water source were different among species. In the dry season, herbaceous plants showed niche separation of water use. The Typha minima and Calamagrostis pseudophragmites mainly used shallow soil water, while the Juncellus serotinus mainly used deep soil water and groundwater (89%±23%). The Phragmites australis mainly used the Fen River water, groundwater and deep soil water (86%±19%). However, all of the three herbaceous plants used deep soil water, groundwater and river water in the rainy season, demonstrating a niche overlap of the plant water use. Additionally, water sources of Tamarix chinensis exhibited a seasonal shift, characterizing by multiple sources in the dry season and shallow soil water (68%±5%) in the rainy season. Under future warm and dry climate conditions, T. chinensis is likely to exhibit distinctly survive advantages because of the strong plasticity of water use, while the herbaceous plants may be influenced by intense water competition. The findings of this study could provide significant scientific references for the wetland ecosystem construction in the Yellow River basin, contributing to an improved understanding of the wetland evolution mechanism.

Key words： middle reaches of the Yellow River plant water source water recharge hydrogen and oxygen isotope estuary wetland

收稿日期: 2023-03-30

PACS:

X173

基金资助:江苏第二师范学院引进人才科研启动项目（928201/030）；中国科学院青年创新促进会项目（Y9CJH01001）；山西省应用基础研究项目（201801D221052）

通讯作者: 李云良,研究员,yunliangli@niglas.ac.cn E-mail: yunliangli@niglas.ac.cn

作者简介: 许秀丽(1987-),山西忻州,副教授,博士,主要研究湿地水文过程及生态效应.发表论文10余篇.xlxu1987@163.com.

引用本文:

许秀丽, 李云良, 郭强. 黄河中游湿地优势植物水分利用的同位素研究[J]. 中国环境科学, 2023, 43(11): 6079-6089. XU Xiu-li, LI Yun-liang, GUO Qiang. Stable isotopes research on water sources of dominant plants in a river wetland at the middle reaches of the Yellow River. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(11): 6079-6089.

链接本文:

http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2023/V43/I11/6079

[1]	Xu H, Zhang Z Q, Xiao J F, et al. Environmental and canopy stomatal control on ecosystem water use efficiency in a riparian poplar plantation [J]. Agricultural and Forest Meteorology, 2020,287(C):107953.
[2]	牛玉国,张金鹏.对黄河流域生态保护和高质量发展国家战略的几点思考[J]. 人民黄河, 2020,42(11):1-4. Niu Y G, Zhang J P. Thoughts on the national strategy of eological Protection and High Quality Development in the Yellow River Basin [J]. Yellow River, 2020,42(11):1-4.
[3]	张金良.黄河流域生态保护和高质量发展水战略思考[J]. 人民黄河, 2020,42(4):1-6. Zhang J L. Water strategy for ecological protection and high quality development in the Yellow River basin [J]. Yellow River, 2020,42(4):1-6.
[4]	黄文海,高熠,席春辉,等.黄河下游湿地演变与实测径流相关性研究[J]. 水生态学杂志, 2022,45(3):1-7. Huang W H, Gao Y, Xi C H, et al. Correlation analysis of wetland evolution and measured runoff in the lower Yellow River [J]. Journal of Hydro-ecology, 2022,45(3):1-7.
[5]	仇志强,毛德华,相恒星,等.5个时期黄河流域湿地格局及其变化研究[J]. 湿地科学, 2021,19(4):518-526. Qiu Z Q, Mao D H, Xiang H X, et al. Patterns and changes of wetlands in the Yellow River basin for 5periods [J]. Wetlands, 2021,19(4):518-526.
[6]	张一然,文小航,罗斯琼,等.近20年若尔盖湿地植被覆盖变化与气候因子关系研究[J]. 高原气象, 2022,41(2):317-327. Zhang Y R, Wen X H, Luo S Q, et al. Study on the relationship between vegetation cover change and climate factors in Zoige wetland in recent 20Years [J]. Plateau Meteorology, 2022,41(2):317-327.
[7]	洪佳,卢晓宁,王玲玲.1973~2013年黄河三角洲湿地景观演变驱动力[J]. 生态学报, 2016,36(4):924-935. Hong J, Lu X N, Wang L L. Quantitative analysis of the factors driving evolution in the Yellow River delta wetland in the past 40years [J]. Acta Ecologica Sinica, 2016,36(4):924-935.
[8]	郭云,梁晨,李晓文.基于系统保护规划的黄河流域湿地优先保护格局[J]. 应用生态学报, 2018,29(9):3024-3032. Guo Y, Liang C, Li X W. Priority conservation pattern of wetlands in the Yellow River basin based on systematic conservation planning [J]. Chinese Journal of Applied Ecology, 2018,29(9):3024-3032.
[9]	Yu D H, Guang X, Wang X J, et al. The impact of runoff flux and reclamation on the spatiotemporal evolution of the Yellow River estuarine wetlands [J]. Ocean and Coastal Management, 2021,212:105804.
[10]	上官铁梁,宋伯为,朱军,等.黄河中游湿地资源及可持续利用研究[J]. 干旱区资源与环境, 2005,19(1):7-13. ShangGuan T L, Song B W, Zhu J, et al. A study on the wetland resources of the mid-Yellow River and their sustainable utilization [J]. Journal of Arid Land Resources and Environment, 2005,19(1):7-13.
[11]	郭东罡,上官铁梁,白中科,等.黄河中游连伯滩湿地景观格局变化[J]. 生态学报, 2011,31(18):5192-5198. Guo D G, Shangguan T L, Bai Z K, et al. Wetland landscape transition pattern of Lianbo beach along the middle Yellow River [J]. Acta Ecologica Sinica, 2011,31(18):5192-5198.
[12]	Guo H L, He X H, Chen J, et al. Research of the distribution of natural vegetation under different disturbances in wetland of lower Yellow River [J]. Procedia Environmental Sciences, 2011,10:313-318.
[13]	He X H, Hörmann G, Strehmel A, et al. Natural and anthropogenic causes of vegetation changes in riparian wetlands along the lower reaches of the Yellow River, China [J]. Wetlands, 2015,35:391-399.
[14]	王鸿祥,黄朴凡,郭文献,等.黄河中下游湿地动态演变及影响因素分析[J]. 水电能源科学, 2022,40(6):14-18. Wang H X, Huang P F, Guo W X, et al. Analysis of wetland dynamic evolution and influencing factors in the middle and lower reaches of the Yellow River [J]. Water Resources and Power, 2022,40(6):14-18.
[15]	马辉英,杨晓东,吕光辉,等.新疆艾比湖湿地自然保护区荒漠优势种体内的水分来源[J]. 生态学报, 2017,37(3):829-840. Ma H Y, Yang X D, Lü G H, et al. Water sources of dominant desert species in Ebinur lake wetland nature reserve, Xinjiang, China [J]. Acta Ecologica Sinica, 2017,37(3):829-840.
[16]	Zhang C C, Li X Y, Wu H W, et al. Differences in water-use strategies along an aridity gradient between two coexisting desert shrubs (Reaumuria soongorica and Nitraria sphaerocarpa):Isotopic approaches with physiological evidence [J]. Plant Soil, 2017,419:169-187.
[17]	Dawson T E, Ehleringer J R. Streamside trees that do not use stream water [J]. Nature, 1991,350:335-337.
[18]	Ehleringer J R, Dawson T E. Water uptake by plants:Perspectives from stable isotopes composition [J]. Plant Cell and Environment, 1992,15:1073-1082.
[19]	Ward D, Wiegand K, Getzin S. Walter's two-layer hypothesis revisited:Back to the roots [J]. Oecologia, 2013,172(3):617-630.
[20]	Zhang X, Xiao Y, Wan H, et al. Using stable hydrogen and oxygen isotopes to study water movement in soil-plant-atmosphere continuum at Poyang Lake wetland, China [J]. Wetlands Ecology and Management, 2017,25:221-234.
[21]	Geris J, Tetzlaff D, McDonnell J J, et al. Spatial and temporal patterns of soil water storage and vegetation water use in humid northern catchments [J]. Science of the Total Environment, 2017,595:486-493.
[22]	邵鹏飞.汾河下游河川径流变化特性分析[J]. 山西水利科技, 2012, 2:90-94. Shao P F. Analysis on runoff variation characteristics at lower Fen river [J]. Shanxi Hydraulic Science and Technology. 2012,2:90-94.
[23]	Phillips D L, Gregg J W. Source partitioning using stable isotopes:coping with too many sources [J]. Oecologia, 2003,136(2):261-269.
[24]	翟远征,王金生,滕彦国,等.北京市不同水体中D和18O组成的变化及其区域水循环指示意义[J]. 资源科学, 2011,33(1):92-97. Zhai Y Z, Wang J S, Teng Y G, et al. Variations of δD and δ18O in water in Beijing and their implications for the local water cycle [J]. Resources Science, 2011,33(1):92-97.
[25]	于晓雯,刘华民,王立新,等.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, 2021,41(5):75-82,91. Yu X W, Liu H M, Dong S G, et al. Analysis on water sources of riverbank vegetation in tributary of Yellow River based on stable isotope technique [J]. Bulletin of Soil and Water Conservation, 2021, 41(5):75‒82.
[26]	Silvertown J, Araya Y, Growing D. Hydrological niches in terrestrial plant communities:A review [J]. Journal of Ecology, 2015,103(1):93-108.
[27]	Wu J E, Liu W J, Chen C F. How do plants share water sources in a rubber-tea agroforestry system during the pronounced dry season [J]? Agriculture, Ecosystems & Environment, 2017,236:69-77.
[28]	Zhao Y, Wang L. Plant water use strategy in response to spatial and temporal variation in precipitation patterns in China:A stable isotope analysis [J]. Forests, 2018,9(3):123.
[29]	周海,郑新军,唐立松,等.准噶尔盆地东南缘多枝柽柳、白刺和红砂水分来源的异同[J]. 植物生态学报, 2013,37(7):665-673. Zhou H, Zheng X J, Tang L S, et al. Differences and similarities between water sources of Tamarix ramosissima, Nitraria sibirica and Reaumuria soongorica in the southeastern Junggar Basin [J]. Chinese Journal of Plant Ecology, 2013,37(7):665-673.
[30]	朱林,许兴,毛桂莲.宁夏平原北部地下水埋深浅地区不同灌木的水分来源[J]. 植物生态学报, 2012,36(7):618-628. Zhu L, Xu X, Mao G L. Water sources of shrubs grown in the northern Ningxia Plain of China characterized by shallow groundwater table [J]. Chinese Journal of Plant Ecology, 2012,36(7):618-628.
[31]	麦尔哈巴·尼加提,比拉力·依明,师庆东,等.沙漠腹地达里雅布依绿洲柽柳幼苗的水分利用来源[J]. 干旱区资源与环境, 2021,35(8):159-166. Marhaba N, Bilal E M, Shi Q D, et al. Water sources of Tamarix sp.seedlings at the Daryaboyi oasis in the hinterland of desert [J]. Journal of Arid Land Resources and Environment, 2021,35(8):159-166.
[32]	徐华山,赵同谦,孟红旗,等.滨河湿地地下水水位变化及其与河水响应关系研究[J]. 环境科学, 2011,32(2):362-367. Xu H S, Zhao T Q, Meng H Q, et al. Relationship between groundwater level in riparian wetlands and water level in the river [J]. Environmental Science, 2011,32(2):362-367.
[33]	Wang L, Shu Z K, Wang G Q, et al. Analysis of future meteorological drought changes in the Yellow River basin under climate change [J]. Water, 2022,14(12):1896-1896.