Unveiling the Benefits of Artificial Ecological Measures: Water Conveyance Improves the Water Quality of the Taitema Lake, Northwestern China
Abstract
:1. Introduction
2. Data and Methods
2.1. Description of the Study Area
2.2. Data Analysis
3. Results
3.1. Change the Area of the Taitema Lake since Ecological Water Conveyance
3.2. Water Quality Characteristics of Taitema Lake
3.3. Responses of Water Quality on the Changes in Lake Area
4. Discussion
4.1. Impact of Ecological Water Conveyance on Water Quality
4.2. Implications for Ecosystem Health and Management
4.3. Limitations and Future Research Directions
5. Conclusions
- (1)
- The study highlighted the significant impact of ecological water transfer on the area dynamics of Taitema Lake. Over the period from 2000 to 2014, the lake area experienced notable fluctuations, ranging from 9.4 km² to a peak of 320 km². These variations underscore the effectiveness of water management strategies in restoring and sustaining the lake’s hydrological balance. However, challenges such as water scarcity and increased evaporation rates pose ongoing threats to the long-term stability of the lake ecosystem;
- (2)
- Analysis of water quality parameters revealed substantial temporal variations in Taitema Lake’s aquatic environment post-ecological water transfer. Notably, the total salt content exhibited significant fluctuations, ranging from 45,323.6 mg/L in 2000 to 14,586.3 mg/L in 2014. These changes reflect the complex interplay between water availability, evaporation rates, and anthropogenic influences. Despite initial improvements in certain water quality indicators, persistent environmental stressors continue to pose challenges to maintaining water quality standards;
- (3)
- The study elucidated the intricate relationship between Taitema Lake’s area dynamics and water quality parameters. Moderate positive correlations were observed between lake area and mineralization (R2 = 0.506) and sodium levels (R2 = 0.4907), indicating the influence of water volume on ion concentrations. Conversely, strong positive correlations were found for chloride (R2 = 0.5681) and sulfate (R2 = 0.6213) concentrations, suggesting the dilution effect of lake area expansion on increasing ion concentrations. These findings underscore the dynamic nature of freshwater ecosystems and highlight the importance of integrated water resource management practices.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Observed Time | Data Sources | Area/km2 | Observed Time | Data Sources | Area/km2 |
---|---|---|---|---|---|
22 July 2000 | CBERS-CCD | 9.4 | 18 July 2008 | MSS | 38.5 |
21 July 2001 | CBERS-CCD | 77.5 | 13 August 2009 | TM/ETM | 43.87 |
21 June 2002 | TM/ETM | 212.43 | 17 July 2010 | HJ-CCD | 278.62 |
22 July 2003 | CBERS-CCD | 181.8 | 25 August 2011 | TM/ETM | 148.94 |
30 August 2004 | CBERS-CCD | 56.3 | 1 August 2012 | HJ-CCD | 210.95 |
1 September 2005 | TM/ETM | 230.63 | November 2013 | HJ-CCD | 313 |
12 September 2006 | TM/ETM | 118.68 | Ocotober 2014 | HJ-CCD | 300 |
11 June 2007 | TM/ETM | 73.16 |
Water Quality | Linear Regression Equation | R2 | p |
---|---|---|---|
Mineralization | y = 4 × 10−8x2 + 0.0054x + 237.91 | 0.506 | <0.001 |
Ka+ | y = 4 × 10−5x2 + 0.1978x + 202.52 | 0.147 | <0.01 |
Na+ | y = 5 × 10−7x2 + 0.0188x + 233.24 | 0.4907 | <0.001 |
Mg2+ | y = 1 × 10−5x2 + 0.0992x + 235.31 | 0.4532 | <0.001 |
Ca2+ | y = 3 × 10−5x2 + 0.2199x + 262.52 | 0.4345 | <0.001 |
Cl− | y = 3 × 10−7x2 + 0.0143x + 228.98 | 0.5681 | <0.001 |
SO42− | y = 2 × 10−6x2 + 0.0343x + 237.88 | 0.6213 | <0.001 |
Test Items | The Lake Area Is the Smallest Year (2008) | The Lake Area Is the Largest Year (2013) | Detection Basis |
---|---|---|---|
pH | 8.7 | 7.6 | Electrode method HJ1147-2020 |
Chloroxyl (mg/L) | 7.2 | 7.9 | Electrochemical probe method HJ 500-2009 |
Electric conductivity (µS/cm) | 1132 | 1141 | GBT 5750.4-2006 |
Chemical oxygen demand (mg/L) | 4.6 | 5 | Dichromate method HJ 828-2017 |
Five-day BOD (mg/L) | 1.5 | 1.2 | Dilution and Inoculation Method HJ 505-2009 |
Permanganate index (mg/L) | 4.1 | 3.3 | GB 11892-89 |
Anionic surfactant (mg/L) | 0.05 | 0.04 | GB 7494-84 |
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Aili, A.; Xu, H.; Waheed, A.; Zhao, X.; Zhang, P. Unveiling the Benefits of Artificial Ecological Measures: Water Conveyance Improves the Water Quality of the Taitema Lake, Northwestern China. Hydrology 2024, 11, 129. https://doi.org/10.3390/hydrology11080129
Aili A, Xu H, Waheed A, Zhao X, Zhang P. Unveiling the Benefits of Artificial Ecological Measures: Water Conveyance Improves the Water Quality of the Taitema Lake, Northwestern China. Hydrology. 2024; 11(8):129. https://doi.org/10.3390/hydrology11080129
Chicago/Turabian StyleAili, Aishajiang, Hailiang Xu, Abdul Waheed, Xinfeng Zhao, and Peng Zhang. 2024. "Unveiling the Benefits of Artificial Ecological Measures: Water Conveyance Improves the Water Quality of the Taitema Lake, Northwestern China" Hydrology 11, no. 8: 129. https://doi.org/10.3390/hydrology11080129