Characteristics of Soil and Water Loss at Castanea Mollissima Woodlands in Dabie Mountain Area
[Objective] The characteristics of soil erosion at Castanea mollissima woodlands in the Dabie Mountains were studied in order to provide scientific support for the comprehensive prevention and control of soil erosion and ecological security in this area. [Methods] Data for this study came from Luoti...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Science Press
2022-04-01
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| Series: | Shuitu baochi tongbao |
| Subjects: | |
| Online Access: | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20220235 |
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| Summary: | [Objective] The characteristics of soil erosion at Castanea mollissima woodlands in the Dabie Mountains were studied in order to provide scientific support for the comprehensive prevention and control of soil erosion and ecological security in this area. [Methods] Data for this study came from Luotian County, Hubei Province well known as the ‘No. 1 Castanea mollissima County in China’. Rainfall, runoff, sediment, and vegetation coverage of three Castanea mollissima woodlands on slopes of 10°, 15°, and 20°, and of two abandoned runoff plots were observed to study the characteristics of soil erosion at Castanea mollissima woodlands in the Dabie Mountains. [Results] ① Although the vegetation coverage on the Castanea mollissima plots was higher than on the abandoned runoff plots, the soil erosion degree was more serious than on the abandoned land under the same slope and rainfall conditions, indicating that the Castanea mollissima woodlands had obvious soil erosion under the forest. ② Soil erosion was weaker in plots with lower vegetation coverage. However, soil erosion was not necessarily the weakest when the vegetation coverage was the highest. This means that even under the same rainfall, soil, and slope conditions, the vegetation coverage cannot be the only indicator of the degree of soil erosion. The composition and structure of vegetation must be considered. ③ Soil erosion on the Castanea mollissima plots did not increase with increasing slope, and there was a peak of soil erosion at about 15°. [Conclusion] Castanea mollissima is widely distributed in the Dabie Mountains. The phenomenon of soil erosion under Castanea mollissima requires further attention from scientific research and management departments. |
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| ISSN: | 1000-288X |