[1]WANG Yipei,XUE Yu,YANG Gairen,et al.Effects of Road Construction and Logging on Soil Erosion in Eucalyptus Plantation[J].Research of Soil and Water Conservation,2019,26(06):1-6.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
1-6
Column:
Public date:
2019-10-17
- Title:
-
Effects of Road Construction and Logging on Soil Erosion in Eucalyptus Plantation
- Author(s):
-
WANG Yipei1,2, XUE Yu1, YANG Gairen1,2, SU Xiaolin1, WU Pengshuai1, WEN Zhiliang1, DENG Yusong1,2
-
1. Forestry College, Guangxi University, Nanning 530004, China;
2. Eco-engineering Institute, Guangxi University, Nanning 530004, China
-
- Keywords:
-
soil erosion; slope collapse; erosion gully; sediment concentration; Eucalyptus plantation
- CLC:
-
S157.1
- DOI:
-
-
- Abstract:
-
In order to better understand the effects of forest road construction and logging on soil erosion in Eucalyptus plantation, annual (after timber harvesting) erosion amount of road collapse and ditch, river sediment deposition were measured, the river sediment content and discharge during one year before and after harvesting were observed. The results showed that the road density was 15.1 km/km2, skid trail density was 11.2 km/km2; there were about 73% of forest roads generating ditches in the first year after harvesting; the annual mean sediment concentration of the river was 0.57 kg/m3 in the first year after harvesting, it was 185% higher than that of before harvesting; the annual erosion modulus in the first was 1 613 t/km2, which is 15 times of before harvesting, and there was about 99.5% of sediment yielding in the rainy season; about 61.9% of sediment output from the catchment was transferred out of the catchment. The major sources of erosion were road ditch and road slopes, the percentages of soil erosion were 28.3% and 20.5%, respectively, more than 48% of erosion was caused by road construction. A good gutter and slope solid system will reduce more than 48% of sediment yields of the first year after harvesting in Eucalyptus plantation.