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- W2352600888 abstract "The nutrient input coming from soil erosion has a significant impact on water body eutrophication of the Taihu Lake Basin. There are a large number of studies discussing the soil erosion features of regional ecosystems based on field investigations, but few studies explored the risks of soil erosion and nutrient loss from forestland at the ecological landscape level. Anji County is located in the headwater streams of the Taihu Lake, whose plentiful forestlands are undergoing an unprecedented disturbance, such as building road, drainage, fertilization, site preparation, and other activities. Therefore, it is very important to examine the soil erosion patterns and nutrient loss in different forestlands, and provide reference for sustainable forest management and land use policy in the great lake area. Based on forest inventory data of Category Ⅱ in Anji County in 2007, this study estimated soil erosion and nutrients loss, including TN, TP, TK, and organic matter of the forestland, by means of the regional erosion modulus method, and estimated soil-nutrient contents. Result show that a volume of soil erosion in Anji County forestland was 751,300 tons per year, and was 5.58 tons per hectare. The loss for TN, TP, TK, and organic matter was 657 t, 272.95 t, 7858 t, and 15,100 t, respectively. Furthermore, the bamboo forest and commercial forest contributed 77% of the soil erosion and nutrients loss. Soil erosion and nutrients loss in coniferous forest and broadleaf forest accounted for about 7~9.8%. Shrub forest and mixed forest had few soil and nutrients loss. In addition, 90% of soil erosion and nutrients loss came from forestlands located on the hilly area and low mountain, which is likely due the forest distribution. Different slopes showed varying effects on soil erosion and nutrients loss. Forests located in the oblique slope and steep slope were responsible for 76% of the soil erosion and nutrients loss. The contribution of soil erosion and nutrients loss in various slopes was ranked in a descending order as: oblique slopesteep slopeslight slopeflat slopeacute slopedangerous slope. This paper discusses soil nutrient loss threats from forestland in the upper reaches of the Taihu Lake, and would be helpful for water pollution control and forest ecosystem management in the Taihu watershed." @default.
- W2352600888 created "2016-06-24" @default.
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- W2352600888 date "2011-01-01" @default.
- W2352600888 modified "2023-09-24" @default.
- W2352600888 title "Assessment on Soil Nutrients Loss of Forestland in Anji County of the Taihu Basin" @default.
- W2352600888 hasPublicationYear "2011" @default.
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