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[ 30] 王万瑞,艾克热木·阿布拉,陈亚宁,等 . 塔里木河下游生态输水对地下水补给量研究[J]. 干旱区地理,
2021,44(3):670-680 .
Study on the ditch rotation irrigation for ecological protection and
restoration of Populus euphratica forests in the desert area
1 1 1,2 3 4 5
BAI Tao ,JI Hongwei ,DENG Mingjiang ,ZHOU Haiying ,LIN Hongbo ,YANG Pengnian
(1. The Ministry of Education Northwest Water Resources and Environment Key Laboratory,
Xi'an University of Technology,Xi'an 710048,China;
2. Engineering Research Center of Water Resources and Ecological Water Conservancy
in Cold and Arid Area of Xinjiang,Urumqi 830000,China;
3. Water Resources Department of Xinjiang Uygur Autonomous Region,Urumqi 830000,China;
4. Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830000,China;
5. College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi 830000,China)
Abstract: The extensive management mode of traditional ecological operation(e.g. flood irrigation)has
caused practical problems such as low efficiency of ecological water use and limited irrigation area. Based
on the special biorhythm of drought-tolerant Populus euphratica in desert area,this paper puts forward the
irrigation concept of Ditch Rotation Irrigation(DRI), defines the definition and connotation of DRI , con⁃
structs the DRI system, and builds the basic framework of DRI. Aiming at practical problems such as the
deterioration of the ecological environment, the reduction of biodiversity, the ineffective evaporation of eco⁃
logical water, and the low utilization efficiency. Take the lower reaches of the Tarim River which is the
largest inland river in my country as an example,the irrigation mode based on the DRI has optimized the
original engineering layout of the lower reaches of the Tarim River and constructed a new planar ecological
water delivery method with double channels, channels and branch rivers. Developed a real-time scheduling
scheme Daxihaizi ecological reservoir, and the poplar branch infiltration rotational irrigation system com⁃
bined to achieve the practical application of Tarim River ecological operation in 2020 with the DRI. The re⁃
sults show that:(1) Compared with the previous ecological water evaporation in the river and Taitema
Lake,the evaporation of ecological water only accounted for 0.4% of the total water volume,and the utili⁃
zation efficiency of ecological water exceeded 83%,which greatly improved the utilization efficiency of eco⁃
logical water. (2) The groundwater level in the test area is increased by 0.28-0.84m,and the groundwater
storage capacity is about 1.28 million cubic meters, which realizes the underground ecological water bank
that stores water in the ground, and ensures the sustainability of ecological dispatch and DRI. (3) The
new ecological water delivery length of the ditch infiltration irrigation is 7km, and the newly added Popu⁃
lus euphratica forests ecological restoration area is 600,000 square meters, which provides a good guaran⁃
tee for the healthy habitat of the Populus euphratica forests such as floating seeding, germination and
growth. The research results provide new ideas and new methods for the ecological protection and restora⁃
tion of the protective vegetation in the desert area.
Keywords: Ditch Rotation Irrigation; ecological regulation; planar water conveyance method; underground
ecological water bank;ecological protection and restoration
(责任编辑:韩 昆)
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