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| Stable isotope analysis of water sources for Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China |
Jinhu ZHANG1,2, Nai'ang WANG1,*( ), Zhenmin NIU1, Jie SUN1, Chunyu DONG3, LyuLyu ZHANG1 |
1 College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
2 State Key Laboratory Breeding Base of Gansu Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou 730070, China
3 Department of Geography, University of California, California 90095, USA |
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Abstract The complex interactions in desert ecosystems between functional types and environmental conditions could be reflected by plant water use patterns. However, the mechanisms underlying the water use patterns as well as the water sources of Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China, remain unclear. This study investigated the water sources and water use patterns of T. laxa using the stable oxygen isotope method. The δ18O values of xylem water, soil water in different layers (0-200 cm), rainwater, snow water, lake water, atmospheric water vapor, condensate water, and groundwater were measured. The sources of water used by T. laxa were determined using the IsoSource model. The results indicate that T. laxa mainly relies on soil water. At the beginning of the growing season (in May), the species is primarily dependent on water from the middle soil layer (60-120 cm) and deep soil layer (120-200 cm). However, it mainly absorbs water from the shallow soil layer (0-60 cm) as the rainy season commences. In September, water use of T. laxa reverts to the deep soil layer (120-200 cm). The water use patterns of T. laxa are closely linked with heavy precipitation events and soil water content. These findings reveal the drought resistance mechanisms of T. laxa and are of significance for screening species for ecological restoration.
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Received: 28 November 2017
Published: 07 November 2018
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| [1] | Allison G B.1982. The relationship between 18O and deuterium in water in sand columns undergoing evaporation. Journal of Hydrology, 55(1-4): 163-169. | | [2] | Cao L Y, Lu Q, Lin G H.2002. Review and perspective on hydrogen stable isotopes technique in tracing plant water sources researches. Acta Ecoloica Sinica, 22(1): 111-117. (in Chinese) | | [3] | Cui Y Q, Ma J Y, Feng Q, et al.2017. Water sources and water-use efficiency of desert plants in different habitats in Dunhuang, NW China. Ecological Research, 32(2): 1-16. | | [4] | Dai Y, Zheng X J, Tang L S, et al.2015. Stable oxygen isotopes reveal distinct water use patterns of two Haloxylon species in the Gurbantonggut Desert. Plant and Soil, 389(1-2): 73-87. | | [5] | Dansgaard W.1964. Stable isotopes in precipitation. Tellus, 16(4): 436-468. | | [6] | Dawson T E.1993. Water sources of plants as determined from xylem-water isotopic composition: perspectives on plant competition, distribution, and water relations. In: Ehleringer J R, Hall A E, Farquhar G D. Stable Isotopes and Plant Carbon-Water Relations.San Diego:Academic Press, 465-496. | | [7] | Dawson T E.1996. Determining water use by trees and forests from isotopic, energy balance and transpiration analyses: the roles of tree size and hydraulic lift. Tree Physiology, 16(1-2): 263-272. | | [8] | Dawson T E, Ehleringer J R.1998. Plants, isotopes, and water use: a catchment-level perspective. In: Kendall C, McDonnel J J. Isotope Tracers in Catchment Hydrology. Amsterdam:Elsevier Science, 165-202. | | [9] | Dong C Y, Wang N A, Chen J S, et al.2016. New observational and experimental evidence for the recharge mechanism of the lake group in the Alxa Desert, north-central China. Journal of Arid Environments, 124: 48-61. | | [10] | Dong Z B, Wang T, Wang X M.2004. Geomorphology of the megadunes in the Badain Jaran Desert. Geomorphology, 60(1-2): 191-203. | | [11] | Ellsworth P Z, Williams D G.2007. Hydrogen isotope fractionation during water uptake by woody xerophytes. Plant and Soil, 291(1-2): 93-107. | | [12] | Flanagan L B, Ehleringer J R, Marshall J D.1992. Differential uptake of summer precipitation among co-occurring trees and shrubs in a pinyon-juniper woodland. Plant Cell & Environment, 15(7): 831-836. | | [13] | Gazis C, Feng X.2004. A stable isotope study of soil water: evidence for mixing and preferential flow paths. Geoderma, 119(1-2): 97-111. | | [14] | Graig H.1961. Isotopic variations in meteoric waters. Science, 133(3465): 1702-1703. | | [15] | Gries D, Zeng F, Foetzki A, et al.2003. Growth and water relations of Tamarix ramosissima and Populus euphratica on Taklamakan desert dunes in relation to depth to a permanent water table. Plant Cell & Environment, 26(5): 725-736. | | [16] | Horton J L, Clark J L.2001. Water table decline alters growth and survival of Salix gooddingii and Tamarix chinensis seedlings. Forest Ecology and Management, 140(2-3): 239-247. | | [17] | Li H, Zhou H F.2006. Application characteristics and mechanism of stable isotope techniques in the study of eco-hydrological progresses in arid regions. Arid Land Geography, 29(6): 810-816. (in Chinese) | | [18] | Lin G, Sternberg L S L.1992. Comparative study of water uptake and photosynthetic gas exchange between scrub and fringe red mangrove, Rhizophora mangle L. Oecologia, 90(3): 399-403. | | [19] | Liu J, Song X, Yuan G, et al.2014. Stable isotopic compositions of precipitation in China. Tellus B: Chemical and Physical Meteorology, 66(1): 39-44. | | [20] | Liu X P, Zhang T H, Zhao H L, et al.2006. Influence of dry sand bed thickness on soil moisture evaporation in mobile dune. Arid Land Geography, 29(4): 523-526. (in Chinese) | | [21] | Ma N, Wang N A, Zhu J F, et al.2011. Climate change around the Badain Jaran Desert in recent 50 years. Journal of Desert Research, 31(6): 1541-1547. (in Chinese) | | [22] | Ma X D, Wang M H, Li H W, et al.2013. The morphological and physiological responses of Tamarix ramosissima seedling to different irrigation methods in the extremely arid area. Acta Ecologica Sinica, 33(19): 6081-6087. (in Chinese) | | [23] | Ma X N, Zhang M J, Li Y J, et al.2012. Research advances on stable isotopes in soil water. Soils, 44(4): 554-561. | | [24] | Peng S Z, Zhao C Y, Peng H H, et al.2010. Spatial distribution of Tamarix ramosissima aboveground biomass and water consumption in the lower reaches of Heihe River, Northwest China. Chinese Journal of Applied Ecology, 21(8): 1940-1946. (in Chinese) | | [25] | Phillips D L, Gregg J W.2003. Source partitioning using stable isotopes: coping with too many sources. Oecologia, 136(2): 261-269. | | [26] | Polacik K A, Maricle B R.2013. Effects of flooding on photosynthesis and root respiration in saltcedar (Tamarix ramosissima), an invasive riparian shrub. Environmental & Experimental Botany, 89: 19-27. | | [27] | Qin D H, Stocker T.2014. Highlights of the IPCC working groupⅠfifth assessment report. Progressus Inquisitiones de Mutatione Climatis, 10(1): 1-6. (in Chinese) | | [28] | Sternberg L S L, Ish-Shalom-Gordon N, Ross M, et al.1991. Water relations of coastal plant communities near the ocean/freshwater boundary. Oecologia, 88(3): 305-310. | | [29] | Tian L, Yao T, Numaguti A, et al.2001. Stable isotope variations in monsoon precipitation on the Tibetan Plateau. Journal of the Meteorological Society of Japan, 79(5): 959-966. | | [30] | Wu D, Liu J, Zhang G, et al.2009. Incorporating spatial autocorrelation into cellular automata model: An application to the dynamics of Chinese tamarisk (Tamarix chinensis Lour.). Ecological Modelling, 220(24): 3490-3498. | | [31] | Wu H W, Li X Y, Jiang Z Y, et al.2016. Contrasting water use pattern of introduced and native plants in an alpine desert ecosystem, Northeast Qinghai-Tibet Plateau, China. Science of the Total Environment, 542: 182-191. | | [32] | Xiao H L, Li S, Chen Y B, et al.2014. Atmospheric water vapor absorption-an important source of water for desert plants. Geography Education, (7): 4-7. (in Chinese ) | | [33] | Xing X, Chen H, Zhu J J, et al.2014. Water sources of five dominant desert plant species in Nuomuhong area of Qaidam Basin. Acta Ecologica Sinica, 34(21): 6277-6286. (in Chinese) | | [34] | Xu X Y.2008. Eco-hydrological responses on dominated sand-fixing vegetations in the transitional zone from oasis to desert in the lower reaches of Shiyang River. PhD Dissertation. Beijing: Beijing Forestry University. (in Chinese) | | [35] | Yang W B, Tang J N, Liang H R, et al.2014. Deep soil water infiltration and its dynamic variation in the shifting sandy land of typical deserts in China. Science China Earth Sciences, 57(8): 1816-1824. | | [36] | Yin K L.1995. Tamarix spp.—The key species in the desert ecosystem. Arid Zone Research, 12(3): 43-47. (in Chinese) | | [37] | Yin L, Zhao L J, Ruan Y F, et al.2012. Study of the replenishment sources of typical ecosystems water and dominant plant water in the lower reaches of the Heihe, China. Journal of Glaciology and Geocryology, 34(6): 1478-1486. (in Chinese) | | [38] | Yu T F, Feng Q, Si J H, et al.2017. The contribution of hydraulic lift to evapotranspiration by Tamarix ramosissima Ledeb. in the lower Heihe River. Acta Ecologica Sinica, 37(18): 1-9. (in Chinese) | | [39] | Zhao J B, Ma Y D, Xing S H, et al.2010. Study on moisture content in sand layers of Tengger Desert in Zhongwei, Ningxia. Journal of Mountain Science, 28(6): 653-659. (in Chinese) | | [40] | Zhao L J, Xiao H L, Chen G D, et al.2008. A preliminary study of water sources of riparian plants in the lower reaches of the Heihe Basin. Acta Geoscientia Sinica, 29(6): 709-718. (in Chinese) | | [41] | Zhao Y F, Kong F K, Xu Z H, et al.2017. Floristic analysis on vegetation of Tamarix austromongolica community in Qinghai Province. Journal of Plant Resources & Environment, 26(2): 90-96. (in Chinese) | | [42] | Zhou C X, Sun Z Y, Yu S W, et al.2011. Using D and 18O stable isotopes to determine the water sources of sand dune plants in Linze, middle reaches of Heihe River. Geological Science and Technology Information, 30(5): 103-109. (in Chinese) | | [43] | Zhou H, Zheng X J, Tang L S, et al.2013. Differences and similarities between water sources of Tamarix ramosissima, Nitraria sibirica and Reaumuria soongorica in the southeastern Junggar Basin. Chinese Journal of Plant Ecology, 37(7): 665-673. (in Chinese) | | [44] | Zhu J F, Wang N A, Chen H B, et al.2010. Study on the boundary and the area of Badain Jaran Desert based on remote sensing imagery. Progress in Geography, 29(9): 1087-1094. (in Chinese) |
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