Study on vegetation change of Taitemar Lake during ecological water transfer

Zhao, Xinfeng; Xu, Hong‐Guang

doi:10.1007/s10661-019-7664-0

Cited by 9 publications

(2 citation statements)

References 6 publications

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“…Up to 2022, a cumulative total of 23 water transfer operations have been executed, releasing a cumulative volume of 91.2 × 10 8 m 3 of water [36,37]. Following the implementation of the EWTP, the Taitema Lake area in the tail lake of the Tarim River expanded from being dried up to encompassing 511 km 2 [38], the groundwater level experienced a rise [33,39], and both vegetation area and coverage increased [17]. Since 2016, the EWTP further expanded to encompass the entire basin, with the Kongque River as a key water transport area.…”

Section: Introductionmentioning

confidence: 99%

Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China

Wang,

Fan,

et al. 2024

Forests

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The ecological water transfer project (EWTP) plays a pivotal role in reinstating the flow of dried-up rivers in arid regions, promoting river connectivity and vegetation resurgence. An essential facet in ensuring the efficacious execution of the EWTP lies in determining the optimal duration of irrigation to facilitate vegetation recovery. Nevertheless, comprehensive reports concerning the EWTP process in arid river ecosystems are scarce. Here, we leverage remote sensing imagery to assess changes in surface water and vegetation dynamics before and after the implementation of the EWTP in a dried-up river. The results show that before the EWTP (1987–2016), riparian vegetation’s mean normalized difference vegetation index (NDVI) decreased from 0.181 to 0.066. After EWTP (2017–2022), the river’s flow was restored for a distance of 347 km. This restoration resulted in the formation of 81.47 km2 of intermittent water bodies along the river. The mean NDVI increased from 0.065 to 0.093. As irrigation duration increased, the NDVI growth rate exhibited an initial rise followed by a subsequent decline, reaching its peak growth rate by irrigating for 18 days per year. The regions showing increased NDVI values exhibited a pronounced spatial correlation with the areas subjected to water transfer. These improvements in NDVI were predominantly concentrated on both sides of the river within a 550 m range. Interestingly, as moves farther away from the river, the growth rate of NDVI exhibited an initial increase followed by a subsequent decline. The pinnacle of NDVI growth rate materialized at a distance of 40–50 m from the river. These findings reveal the response characteristics of desert riparian vegetation to EWTP, providing valuable insights for selecting appropriate water transfer timing in future EWTP.

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Section: Introductionmentioning

confidence: 99%

Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China

Wang,

Fan,

et al. 2024

Forests

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“…Since the turn of the millennium, the implementation of an ecological water transfer project has sought to address the ecological imbalances a icting Taitema Lake (Zhao et al, 2019;Zhao et al, 2023). This project, aimed at replenishing the downstream water resources of the Tarim River, has signi cantly impacted Taitema Lake's hydrological dynamics and water quality.…”

Section: Introductionmentioning

confidence: 99%

Integrated Evaluation of Inland Lake Water Quality under the Influence of Ecological Water Conveyance

Aili,

Hailiang,

Waheed

et al. 2024

Preprint

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Taitema Lake, situated at the terminus of the Tarim River Basin in Northwest China, represents a crucial ecological resource impacted by climate variability and anthropogenic interventions. In this study, we investigate the dynamic changes in Taitema Lake's area and water quality resulting from the implementation of an ecological water transfer project since 2000. Leveraging Landsat remote sensing data and comprehensive water quality monitoring, we analyze the relationship between lake area variations and shifts in water quality parameters. Notably, our findings reveal a significant increase in Taitema Lake's area from 9.4 km² in 2000 to 320 km² in 2013. Concurrently, water quality indicators exhibited marked fluctuations, with total salt content ranging from 45,323.6 mg/L in 2000 to 970.4 mg/L in 2010, before increasing to 14,586.3 mg/L by 2014. Furthermore, a linear regression analysis highlights the moderate positive correlation between lake area and mineralization (R²=0.506) and sodium levels (R²=0.4907). Additionally, chloride (R²=0.5681) and sulfate (R²=0.6213) concentrations demonstrated a strong negative correlation with lake area, indicative of a dilution effect. Furthermore, a comparison of water quality indicators between the years of minimum (2008) and maximum (2013) lake area underscores improvements in pH, chemical oxygen demand, and anionic surfactant concentrations as lake area increased. Our study provides valuable insights into the effectiveness of ecological water management strategies in restoring and maintaining the ecological health of Taitema Lake, thereby informing evidence-based decision-making for the sustainable management of freshwater resources in arid environments.

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Whether the ecological benefits will continue to increase as usual and improve under the background of continuous ecological water delivery?—Taking the Lower Tarim River in China as an example

Zhao,

Xu ※,

Aili ※

et al. 2024

Ecological Indicators

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Study on vegetation change of Taitemar Lake during ecological water transfer

Cited by 9 publications

References 6 publications

Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China

Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China

Integrated Evaluation of Inland Lake Water Quality under the Influence of Ecological Water Conveyance

Whether the ecological benefits will continue to increase as usual and improve under the background of continuous ecological water delivery?—Taking the Lower Tarim River in China as an example

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