Water Resources

Ecological water demand of natural vegetation in the lower Tarim River

  • Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China
Ye Zhaoxia (1978?), Ph.D, specialized in the field of eco-hydrology. E-mail: yyyzx6085@sina.com

Received date: 2009-01-08

  Revised date: 2009-02-28

  Online published: 2010-04-15

Supported by

National Natural Science Foundation of China, No.90502004; Knowledge Innovation Project of the CAS, No.KZCX2-YW-Q10-3-4, No.KZCX2-YW-Q10-3


We have appraised the relationships between soil moisture, groundwater depth, and plant species diversity in the lower reaches of the Tarim River in western China, by analyzing field data from 25 monitoring wells across eight study sites and 25 permanent vegetation survey plots. It is noted that groundwater depth, soil moisture and plant species diversity are closely related. It has been proven that the critical phreatic water depth is five meters in the lower reaches of the Tarim River. We acquired the mean phreatic evaporation of different groundwater levels every month by averaging the two results of phreatic evaporation using the Qunk and Averyanov formulas. Based on different vegetation types and acreage with different groundwater depth, the total ecological water demand (EWD) of natural vegetation in 2005 was 2.4×108 m3 in the lower reaches of the Tarim River. Analyzing the monthly EWD, we found that the EWD in the growth season (from April to September) is 81% of the year’s total EWD. The EWD in May, June and July was 47% of the year’s total EWD, which indicates the best time for dispensing artificial water. This research aims at realizing the sustainable development of water resources and provides a scientific basis for water resource management and sound collocation of the Tarim River Basin.

Cite this article

YE Zhaoxia, CHEN Yaning, LI Weihong . Ecological water demand of natural vegetation in the lower Tarim River[J]. Journal of Geographical Sciences, 2010 , 20(2) : 261 -272 . DOI: 10.1007/s11442-010-0261-3


[1] Armentrout G W, Wilson J F, 1997. Assessment of low flows in streams in northeastern Wyoming. USGS Water Resources Investigations Report, 85–4246, 4(5): 533–588.

[2] Chen Yaning, Li Weihong, Chen Yapeng et al., 2004a. Physiological response of natural plants to the change of groundwater level in the lower reaches of Tarim River, Xinjiang. Progress in Natural Science, 14(11): 975–983.

[3] Chen Yaning, Li Weihong, Xu Hailiang et al., 2003. The influence of groundwater on vegetation in the lower reaches of Tarim River, China. Acta Geographica Sinica, 58 (4): 542–549. (in Chinese)

[4] Chen Yaning, Wang Qiang, Li Weihong et al., 2006. Rational groundwater table indicated by the ecophysiological parameters of the vegetation. Chinese Science Bulletin, 51(suppl. 1): 8–15.

[5] Chen Yaning, Zhang Xiaolei, Zhu Xiangmin et al., 2004b. Analysis on the ecological benefits of the stream water conveyance to the dried-up river of the lower reaches of Tarim River, China. Science in China (Series D): 47(11): 1053–1064.

[6] Cui Yali, Shao Jingli, Han Shuangping, 2001. Ecological environment adjustment by groundwater in Northwest China. Earth Science Frontiers, 8(1): 191–196. (in Chinese)

[7] Falkenmark M, 1995. Coping with water scarcity under rapid population growth. Conference of SADC Minister, Pretoria, 23–24.

[8] Geoffrey E P, 1996. Water allocation to protect river ecosystems. Regulated River: Research & Management, (12): 353–365.

[9] Gleick P H, 2000. The changing water paradigm: A look at twenty-first century water resource development. Water International, 25(1): 127–138.

[10] Henry C P, Amoros C, 1995. Restoration ecology of riverine wetlands: II. An example in former channel of the Rhone River. Environmental Management, 19(6): 891–902.

[11] Hughes D A, Hannart P, 2003. A desktop model used to provide an initial estimate of the ecological instream flow requirements of rivers in South Africa. Journal of Hydrology, 270: 167–181.

[12] Hao Xingming, Chen Yaning, Li Weihong, 2006. The driving forces of environment change during the last 50 years in the Tarim River Basin. Acta Geographica Sinica, 61(3): 262–272. (in Chinese)

[13] He Zhibin, Zhao Wenzhi, Fang Jing, 2005. Ecological water requirements of vegetation in the middle reaches of Heihe River. Acta Ecologica Sinica, 25(4): 705–710. (in Chinese)

[14] Li Jiuyi, Li Lijuan, Jiang Dejuan et al., 2006. Calculation method on ecological pondage and ecological water demand of marsh. Acta Geographica Sinica, 61(3): 289–296. (in Chinese)

[15] Liu Changming, Sun Rui, 1999. Ecological aspects of water cycle advance in soil–vegetation–atmosphere of energy and water flux. Advances in Water Science, 10(3): 251–259. (in Chinese)

[16] Liu Jiazhen, Chen Yaning, 2002. Analysis on converse succession of plant communities at the lower reaches of Tarim River. Arid Land Geography, 25(3): 231–236. (in Chinese)

[17] Ma Jinzhu, Gao Qianzhao, 1997. Water resources system and eco-environmental problems in the inland river basin of arid northwest China. Journal of Arid Land Resources and Environment, 11(4): 15–21. (in Chinese)

[18] Machenzie A, Ball A S, Virdee S R, 1998. Instant Notes in Ecology. Singapore: Bios Scientific Publishers Limited. Mahoney J M, Rood S B, 1992. Response of a hybrid poplar to water table decline in different substrates. Forest Ecology and Management, 54: 141–156.

[19] Mao Xiaomin, Li Min, Shen Yanli, 1998. Analysis of the phreatic evaporation in Yarkant River Basin. Arid Land Geography, 21(3): 44–50.

[20] McIntosh R P, 1967. An index of diversity and the relation of certain concepts to diversity. Ecology, 48(3): 392–404.

[21] Pandey J S, Devotta S, 2005. Assessment of environmental water demands (EWD) of forests for two distinct Indian ecosystems. Environmental Management, 37(1): 141–152.

[22] Pielou E C, 1966. The measurement of diversity in different types of biological collection. Journal of Theoretical Biology, 13: 131–144.

[23] Qian Yibing, Zhou Huarong, Zhao Ruifeng et al., 2005. Spatial heterogeneity of soil physical-chemical properties for wetlands and surrounding lands in middle and lower reaches. Journal of Soil and Water Conservation, 19(6): 31–34. (in Chinese)

[24] Rashin P D, Hansen E, Margolis R M, 1996. Water and sustainability: Global patterns and long-range problems. Natural Researches Forum, 20(1): 1–15.

[25] Robbins B D, Bell S S, 2000. Dynamics of a subtidal seagrass landscape: Seasonal and annual change in relation to water depth. Ecology, 81(5): 1193–1205.

[26] Simpson E H, 1949. Measurement of diversity. Nature, 163: 688.

[27] Song Yudong, Fan Zili, Lei Zhidong, 2000. Research on Water Resources and Ecology of Tarim River, China. Urumqi: Xinjiang People’s Press. (in Chinese)

[28] Sultan Danyar, Song Yudong, Marina J, 2004. Influence of groundwater level change on vegetation coverage and their spatial variation in arid regions. Journal of Geographical Sciences, 14(3): 323–329.

[29] Tharme R E, 1996. A review of the international methodologies for the quantification of the instream flow requirements of rivers. Water Law Review Policy for Policy Development, Report to Department of Water Affairs and Forestry, South Africa, 116.

[30] Thomas M C, Sheldon F, 2000. Water resource development and hydrological change in a large dry land river: The Barowon–Arling River, Australia. Journal of Hydrology, 228: 10–21.

[31] Tongway D J, Ludwig J A, 1994. Small-scale patch heterogeneity in semi-arid landscapes. Pacific Conservation Biology, (1): 201–208.

[32] Wang Genxu, Cheng Guodong, 1999. The ecological features and significance of hydrology within arid inland river basins of China. Environmental Geology, 37(3): 218–222.

[33] Whipple W J, Dubois D, Grigg N S et al., 1999. A proposed approach to coordination of water resources development and environmental regulations. Journal of the American Water Resources Association, 35(4): 713–716.

[34] Whittaker R H, 1972. Evolution and measurement of species diversity. Taxon, 21: 213–251.

[35] Xu Hailing, Song Yudong, Chen Yaning, 2003. Reasonable ground-water level at lower reaches of Tarim River after water transfer. Bulletin of Soil and Water Conservation, 23(5): 22–25. (in Chinese)

[36] Yan Denghua, He Yan, Deng Wei et al., 2003. Ecological water demand: The case of the slope systems in the east Liao River Basin. Journal of Geographical Sciences, 13(4): 400–407.

[37] Yang Zhifeng, Yin Min, Cui Baoshan, 2005. Study on urban eco-environmental water requirements: Theory and method. Acta Ecologica Sinica, 25(3): 389–396. (in Chinese)

[38] Zalewski M. (2000). Ecohydrology: The scientific background to use ecosystem properties as management tools toward sustainability of water resource. Ecological Engineering, 16: 1–8.

[39] Zhang Li, Dong Zengchuan, Zhao Bin, 2003. Method for estimating ecological water requirement of natural vegetation in arid area. Advances in Water Science, 14(6): 745–748. (in Chinese)

[40] Zhang Wuwen, Shi Shengsheng, 2002. Study on the relation between groundwater dynamics and vegetation degeneration in Erjina oasis. Journal of Glaciology and Geocryology, 24(4): 421–425. (in Chinese)

[41] Zhang Yuanming, Chen Yaning, 2004. Plant communities and its interrelation with environmental factors in the lower reaches of Tarim River Valley. Acta Geographica Sinica, 59(6): 903–910. (in Chinese)

[42] Zhao Wenzhi, Chang Xueli, He Zhibin et al., 2007. Study on vegetation ecological water requirement in Ejina oasis. Science in China (Series D), 50(1): 121–129.

[43] Zhao Wenzhi, Cheng Guodong, 2002. Review of several problems on eco-hydrological processes in arid zones. Chinese Science Bulletin, 47(5): 353–360.

[44] Zheng Dan, Li Weihong, Chen Yapeng et al., 2005. Relations between groundwater and natural vegetation in the arid zone. Resources Science, 27(4): 160–167. (in Chinese)