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中文摘要：
本试验以河南县高寒草甸草地类型为研究对象,比较分析了补播改良后1~3年的土壤养分的变化情况。结果表明：补播改良可明显促进高寒草甸土壤全N、P、K及速效N、K含量的积累,同时也可有效提高土壤有机质含量和土壤保水能力,特别是在补播2年后土壤的全素含量积累土壤有机质含量和土壤水分的增加最为显著,本试验结论可为高寒草甸的草地改良提供理论依据。
英文摘要：
The change of soil nutrients from one year to three year were analyzed after reseeding on alpine meadow grassland in Henan County. The results showed that reseed improvement can obviously promote total N, P, K and the content of available N, K accumulation in soil of the alpine meadow, also can effectively increase the soil organic matter content and soil water retention, After two years of reseeding, whole content accumulation, and the increasing of soil organic matter content and soil moisture is the most significant.The test results provide theoretical basis for the alpine meadow grassland improvement.
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