Is the “Ecological and Economic Approach for the Restoration of Collapsed Gullies” in Southern China Really Economic?
Abstract
:1. Introduction
2. Methods
2.1. Study Area
2.2. Data Collection
Site | Costs (RMB) | Increased terrace (ha) | Costs of terrace (RMB ha−1) | Economic trees | Town | Investor | Treating year |
---|---|---|---|---|---|---|---|
Sanguan’ao in Sanzhou village | 63,543 | 3 | 21,181 | Cunninghamia lanceolata | Sanzhou | Individual | 2000 |
Young Century Forest in Tufang village | 652,500 | 2 | 326,250 | Myrica rubra | Hetian | Government | 2012 |
Cost type | Sanzhou village Site | Tufang village Site | ||
---|---|---|---|---|
Costs (RMB) | Percentage (%) | Costs (RMB) | Percentage (%) | |
Engineering measures | 57,983 | 91.25 | 537,334 | 82.35 |
Vegetation measures | 3495 | 5.5 | 25,252 | 3.87 |
Independent costs | 2065 | 3.25 | 89,915 | 13.78 |
Subtotal | 63,543 | 100 | 652,500 | 100 |
2.3. Economic Analysis Model
3. Results
3.1. Cost-Benefit Analysis of the “New Methods”
Site | Costs of terrace (RMB ha−1) | Annual forestland rent (RMB ha−1 year−1) | Forestland value (RMB ha−1) | V-C (RMB ha−1) | ROI (%) |
---|---|---|---|---|---|
Sanzhou village | 21,181 | 150 | 2738 | −18,443 | −3.60 |
Tufang village | 326,250 | 300 | 5477 | −320,773 | −8.90 |
3.2. Comparison between New and Conventional Methods
Conservation methods | Net cost (RMB ha−2) | Erosion modulus reduction (ton ha−2 year−1) | Cost efficiency (RMB ton−1 year−1) |
---|---|---|---|
Timber trees | 18,443 | 26.5 | 696 |
Fruit trees | 320,773 | 27.5 | 11,664 |
Conventional method | 3600 | 22 | 164 |
4. Discussion
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Wang, C.; Zhang, Y.; Xu, Y.; Yang, Q. Is the “Ecological and Economic Approach for the Restoration of Collapsed Gullies” in Southern China Really Economic? Sustainability 2015, 7, 10308-10323. https://doi.org/10.3390/su70810308
Wang C, Zhang Y, Xu Y, Yang Q. Is the “Ecological and Economic Approach for the Restoration of Collapsed Gullies” in Southern China Really Economic? Sustainability. 2015; 7(8):10308-10323. https://doi.org/10.3390/su70810308
Chicago/Turabian StyleWang, Chengchao, Yaoqi Zhang, Yecheng Xu, and Qichun Yang. 2015. "Is the “Ecological and Economic Approach for the Restoration of Collapsed Gullies” in Southern China Really Economic?" Sustainability 7, no. 8: 10308-10323. https://doi.org/10.3390/su70810308