Response of Submerged Aquatic Vegetation to Water Depth in a Large Shallow Lake after an Extreme Rainfall Event
Abstract
:1. Introduction
2. Methods
2.1. Aquatic Vegetation Biomass and Water Depth Survey
2.2. Calculation of Proper Water Depth for SAV
2.3. Frequency of Occurrence
2.4. Statistical Analysis
3. Results
3.1. Variation in Water Levels
3.2. Variation in SAV Biomass
3.3. Variation in SAV Occurrence Frequency
4. Discussion
4.1. Effect of Water Depth on SAV Biomass
4.2. Effect of Water Depth on Different SAV Species
4.3. A New Method to Determine Proper Water Depth for SAV
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Dependent Variable | Source of Variation | Between Groups | Within Groups | F | Significance | ||
---|---|---|---|---|---|---|---|
Sum of Squares | Sum of Squares | Mean Squares | df | ||||
2013 vs. 2014 | Biomass | 22.323 | 2443.072 | 8.226 | 297 | 2.714 | 0.101 |
Water depth | 0.008 | 23.389 | 0.077 | 303 | 0.107 | 0.744 | |
2014 vs. 2015 | Biomass | 6.452 | 3792.313 | 12.641 | 300 | 0.51 | 0.476 |
Water depth | 3.136 | 44.241 | 0.144 | 308 | 21.833 | 0.000 | |
2015 vs. 2016 | Biomass | 158.222 | 3053.607 | 9.914 | 308 | 15.959 | 0.000 |
Water depth | 5.547 | 73.418 | 0.238 | 309 | 23.345 | 0.000 | |
2016 vs. 2017 | Biomass | 47.362 | 2424.001 | 7.87 | 308 | 6.018 | 0.015 |
Water depth | 12.367 | 52.488 | 0.172 | 305 | 71.862 | 0.000 |
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Zhu, J.; Deng, J.; Zhang, Y.; Peng, Z.; Hu, W. Response of Submerged Aquatic Vegetation to Water Depth in a Large Shallow Lake after an Extreme Rainfall Event. Water 2019, 11, 2412. https://doi.org/10.3390/w11112412
Zhu J, Deng J, Zhang Y, Peng Z, Hu W. Response of Submerged Aquatic Vegetation to Water Depth in a Large Shallow Lake after an Extreme Rainfall Event. Water. 2019; 11(11):2412. https://doi.org/10.3390/w11112412
Chicago/Turabian StyleZhu, Jinge, Jiancai Deng, Yihui Zhang, Zhaoliang Peng, and Weiping Hu. 2019. "Response of Submerged Aquatic Vegetation to Water Depth in a Large Shallow Lake after an Extreme Rainfall Event" Water 11, no. 11: 2412. https://doi.org/10.3390/w11112412