杉木与南酸枣混交林生物量及土壤肥力研究

摘要

Investigations and comparisons were conducted on growth,biomass and soil fertility of different mixed stands of both 6-year Choerospondias axillaris and Cunninghamia lanceolata and their pure stands in Suichang county,Zhejiang province.The result demonstrated that mixed stands could promote growth of C.lanceolata and soil fertility.Mixed C.lanceolata and Ch.axillaris stand with 3:lhad higher productivity and biomass.It had volume of 76.42 m3/ha and biomass of 41.5127 t/ha,increased by 74.55％ and 97.27％ compared with that of pure C.lanceolata stand.%从林分生长、生物量及土壤养分等方面,对营造于浙江遂昌县牛头山林场的6年生杉木(Cunnighamia lanceolata)与南酸枣(Choerospondias axillaris)不同模式混交林及其纯林进行了调查和对比分析,结果表明,南酸枣与杉木混交后能促进杉木的生长和有利于维护地力,其中以杉∶南=3∶1混交模式生产力和生物量较高,蓄积量为76.42 m3/hm2,生物量为41.512 7 t/hm2,与杉木纯林为相比,分别提高了74.55％和97.27％,南酸枣纯林以及杉木南酸枣混交林的土壤肥力与杉木纯林相比也均有不同程度提高.