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Effects of pure pine plantations on the soil chemical properties and plant diversity in Guizhou Province, China

机译:纯松人工林对贵州省土壤化学性质和植物多样性的影响

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摘要

The effects of 4 and 7 year-old pure pine plantations on understorey vegetation composition in two reforestation sites in Guizhou Province, China were analyzed. The plant population, number of species, species richness and biodiversity indices underthe pure pine plantations were significantly lower than the natural forest in the two sites studied. Soil chemical properties such as total N, available N, total P2O5, available P2O5, total K2O, available K 2 0 and pH decreased significantly under the pine plantations compared with the natural forest. Organic matter content increased significantly under the pine plantations compared with the natural forest. Recommendations are offered to counteract the effects of pure pine plantation on these study site
机译:分析了贵州省两个造林地点的4和7岁的纯松林对低层植被组成的影响。在所研究的两个地点,纯松人工林下的植物种群,物种数量,物种丰富度和生物多样性指数均明显低于天然林。与天然林相比,松林下土壤化学性质,如总氮,有效氮,总P2O5,有效P2O5,总K2O,有效K 2 0和pH显着下降。与天然林相比,松林下的有机质含量显着增加。提供了一些建议以抵消纯松人工林对这些研究地点的影响

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