Abstract
This study aimed to determine the effect of establishing protective forests on soil nutrient dynamics in the Taihu Lake area. The experiment was performed in Yixing City to determine changes in soil organic matter , total nitrogen, total phosphorus, total potassium , available phosphorus , and available potassium . Results showed the evident effects of building protective forests along the lake on changes in soil nutrient content, which exhibited a constant trend. Establishment of protective forests could effectively reduce soil nutrient content compared with that in farmland soil. In forested lands , soil organic matter and available potassium content decreased by 29.06 and 26.33 %, respectively, whereas total nitrogen, total phosphorus, and available phosphorus decreased by more than 30 %. Hence, this research implied that building protective forests could achieve source reduction effect and increased sink for non-point source pollution. From October 2009 to May 2011, the ecological restoration area with reduced loads of pure nitrogen and phosphorus reached 46.3–69.54 and 3.78–7.3 g/m2, respectively, through source reduction and increased sink .
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Zhang, J. (2016). Influences of Protective Forest Construction on Soil Nutrient Dynamics. In: Forestry Measures for Ecologically Controlling Non-point Source Pollution in Taihu Lake Watershed, China. Springer, Singapore. https://doi.org/10.1007/978-981-10-1850-3_12
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DOI: https://doi.org/10.1007/978-981-10-1850-3_12
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