Comparative Analysis on Environmental Adaptability of Two Types of Bank Stabilization Structures along the Middle and Lower Reaches of the Yangtze River
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sites and Basic Information of Sampling Points
2.2. Introduction of Bank Stabilization Structures
2.3. Methods
2.3.1. Field Investigation
2.3.2. Calculation of Vegetation Succession Characteristic Index and Determination of Physical and Selected Chemical Properties of Substrate
2.3.3. Data Analysis
3. Results
3.1. Vegetation
3.1.1. Cover
3.1.2. Average Height
3.1.3. Species Diversity Index
3.2. Substrate
3.2.1. Substrate Composition
3.2.2. Substrate Nutrients
3.3. Effects of Environmental Impact Factors on Biotic Indices
4. Discussion
4.1. Comparison of Two Types on Vegetation and Substrate
4.2. Comparison of the Two Types under RDA Results
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sites | Type | Construction Work Time | Sampling Time before the Flood | Sampling Time after the Flood | Pioneer Vegetation |
---|---|---|---|---|---|
LLZ1 | 1 | 2014.06 | 2019.4.18 | 2019.10.09 | Cynodon dactylon |
LLZ2 | 2 | 2014.06 | 2019.4.18 | 2019.10.09 | Cynodon dactylon |
MJZ | 1 | 2012.06 | 2019.4.19 | 2019.10.10 | Natural restoration |
JLGT | 2 | 2012.10 | 2019.4.19 | 2019.10.10 | Cynodon dactylon |
LJP | 2 | 2015.03 | 2019.4.18 | 2019.10.12 | Cynodon dactylon |
JP | 1 | 2013.03 | 2019.4.17 | 2019.10.13 | Cynodon dactylon, |
XHP | 1 | 2016.01 | 2019.3.28 | 2019.09.26 | Cynodon dactylon, Phragmites communis, Hemarthria altissima |
DJZ | 1 | 2011.08 | 2019.3.29 | 2019.09.27 | Cynodon dactylon, Festuca elata |
QLH | 1 | 2014.05 | 2019.4.27 | 2019.09.28 | Cynodon dactylon, Hemarthria altissima |
Sites | Elevation of the Low Water Platform | Range of Sampling Zones Relative to the Low Water Platform (m) | Average Annual Duration of Submergence (Day) | ||||
---|---|---|---|---|---|---|---|
Upper Part | Middle Part | Lower Part | Upper Part | Middle Part | Lower Part | ||
LLZ1 | 31.40 | >4.60 | 2.30–4.60 | 0–2.30 | 27 | 67 | 137 |
LLZ2 | 31.40 | >4.60 | 2.30–4.60 | 0–2.30 | 27 | 67 | 137 |
MJZ | 29.60 | >5.04 | 2.52–5.04 | 0–2.52 | 32 | 95 | 159 |
JLGT | 30.60 | >4.80 | 2.40–4.80 | 0–2.40 | 24 | 61 | 122 |
LJP | 26.51 | >6.00 | 3.00–6.00 | 0–3.00 | 33 | 101 | 173 |
JP | 19.04 | >8.00 | 4.00–8.00 | 0–4.00 | 47 | 110 | 184 |
XHP | 12.60 | >8.00 | 4.00–8.00 | 0–4.00 | 47 | 110 | 184 |
DJZ | 11.06 | >8.46 | 4.23–8.46 | 0–4.23 | 46 | 116 | 184 |
QLH | 5.69 | >6.64 | 3.32–6.64 | 0–3.32 | 94 | 150 | 184 |
RH | pH | OM | TN | TP | TK | AN | AP | |
---|---|---|---|---|---|---|---|---|
RH | 1 | |||||||
pH | −0.234 | 1 | ||||||
OM | 0.419 * | −0.651 ** | 1 | |||||
TN | 0.425 * | −0.673 ** | 0.947 ** | 1 | ||||
TP | −0.069 | −0.467 * | 0.434 * | 0.489 * | 1 | |||
TK | 0.214 | −0.652 ** | 0.863 ** | 0.865 ** | 0.418 * | 1 | ||
AN | 0.014 | −0.373 | 0.563 ** | 0.629 ** | 0.299 | 0.567 ** | 1 | |
AP | 0.238 | −0.620 ** | 0.491 * | 0.613 ** | 0.497* | 0.581 ** | 0.422 * | 1 |
AK | 0.595 ** | −0.474 * | 0.458 * | 0.512 ** | 0.294 | 0.315 | 0.334 | 0.537 ** |
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Fan, Y.; Yang, Z.; Li, M.; Zhang, Z.; Li, D. Comparative Analysis on Environmental Adaptability of Two Types of Bank Stabilization Structures along the Middle and Lower Reaches of the Yangtze River. Sustainability 2020, 12, 7991. https://doi.org/10.3390/su12197991
Fan Y, Yang Z, Li M, Zhang Z, Li D. Comparative Analysis on Environmental Adaptability of Two Types of Bank Stabilization Structures along the Middle and Lower Reaches of the Yangtze River. Sustainability. 2020; 12(19):7991. https://doi.org/10.3390/su12197991
Chicago/Turabian StyleFan, Yujie, Zhonghua Yang, Ming Li, Zhiyong Zhang, and Da Li. 2020. "Comparative Analysis on Environmental Adaptability of Two Types of Bank Stabilization Structures along the Middle and Lower Reaches of the Yangtze River" Sustainability 12, no. 19: 7991. https://doi.org/10.3390/su12197991