SWCF of Forest in Three-Gorges of Yangtze River

DOI: 10.4236/gep.2014.21003   PDF   HTML     3,993 Downloads   6,451 Views  

Abstract

In Qinjiagou watershed of Three-Gorge of Yangtze River, 18 indices were selected from canopy layer, litter layer, soil layer and topography to evaluate the soil and water conservation capacities of four common plantation types by ideal point method. Results indicated that the broadleaf plantation of robur (Lithocrpus glabra) and Chinese gugertree (Schima superba) (LS) has the biggest soil and water conservation capacity. The rank of three other plantation types from big to small is the mixed broadleaf plantation of sweetgum (Liguidambar formosana), Chinese gugertree and camphor tree (Cinnamomum camphora) (LSC), the mixed broadleaf-conifer plantation of Chinese fir (Cunninghamia lanceolata), Masson pine (Pinus massoniana) and Chinese gugertree (CPS), and the mixed Pine plantation of Chinese fir and Masson pine (CP). Under the same climate and topographical condition, the broadleaf plantation has better soil and water conservation capacity than the conifer plantation. Sensitivity analysis showed that the three most sensitive indices are soil non-capillary porosity, soil aggregation, and soil initial infiltration rate. The litter amount and soil properties are the most important indicators of soil and water conservation capacity of plantations. Therefore, suitable measurements such as deep tillage should be taken to improve the properties of soil under different plantations.

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Chen, K. (2014) SWCF of Forest in Three-Gorges of Yangtze River. Journal of Geoscience and Environment Protection, 2, 12-14. doi: 10.4236/gep.2014.21003.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Feng, X. L., Zhang, H. J., & Wang, L. X. (1998). Quantitative evaluation of effects of water conservation forest on conserving soil and water in the upper stream of Miyun Reservoir. Journal of Beijing Forestry University, 20, 71-77.
[2] Guo, S. H., Wang, F. F., & Zhang, J. S. (2008). Ecological security evaluation based on PSR Model for Shanzi Reservoir, Fujian Province. Journal of Lake Science, 20, 814-818.
[3] Hagemann, S. (2007). Applying ideal point estimation methods to the Council of Ministers. European Union Politics, 8, 279. http://dx.doi.org/10.1177/1465116507076433
[4] Hartanto, H., Prabhu, R., Widayat, A. S. E., & Asdak, C. (2003). Factors affecting runoff and soil erosion: Plot-level soil loss monitoring for assessing sustainability of forest management. Forest Ecology and Management, 180, 361-374. http://dx.doi.org/10.1016/S0378-1127(02)00656-4

  
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