Since 2000, 9 groundwater monitoring sections have been established along the lower reaches of the Tarim River - Qiwenkuer River, with a spacing of about 20 km between each section. From below the Daxihaizi Reservoir, there are 9 sections including Akdun (A), Yahefuhan (B), Yingsu (C), Abudal (D), Kaldayi (E), Tugemailai (F), as well as Arakan (G), Yiganfeima (H), and Kaogan (1). Among them, the spacing between the last three sections is 45 km.
Under the high-intensity human economic and social activities centered on water resource development and utilization in the Tarim River Basin of Xinjiang, the ecological environment in the lower reaches of the Tarim River has severely degraded, the groundwater level has sharply decreased, water quality has deteriorated, surface vegetation is on the brink of death, and desertification has intensified.
At each section, a groundwater level monitoring well (with a depth of 8-17 meters) is installed at intervals of 100 meters or 200 meters. A total of 40 groundwater monitoring wells are installed to monitor the groundwater level, water salt dynamics, and impact range of each section during the water supply process to the lower reaches of the Tarim River. The monitoring frequency is once a month, and the monitoring frequency will be increased during the water delivery process. The groundwater level data is monitored using the conductivity method.
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CSTR:11738.11.ncdc.nieer.2020.1518
10.12072/ncdc.nieer.db2983.2023