摘要
对安徽省４种马尾松混交林（松枫、松杉、松栎、松杜）进行调查分析和试验研究，结果表明：４种混交林单位面积蓄积量分别比对照纯林平均提高３５．３％、９０．７％、１６．８％和２５．５％；土壤有机质含量平均高于纯林１４８．５％，速效氮、磷、钾含量也均有提高。同时林内小气候条件有所改善，林分对病虫害的自我抑制能力有所增强。本文还分析了不同混交比例对林分生长及生产力的影响，提出了不同马尾松混交林的合理经营模式。
The mixed stands of masson pine,respectively,with、beautiful sweetgum chi-nese fir,oaks and eucommia in Anhui province were studied.The results showed that theproductivity of the mixtures were、higher.By comparison with the pure pine plantations.thestands volumes of above four mixtures were increased by35.3%,90.7%,16.8% and 25.5%respectively,meteorological quality and soil fertility in the mixed stands were im-proved,content of soil organic matter was enhanced averageiy by 148.5%; contents of N,P,K in the soil of mixtures were higher by 22.1%-37.4%;The ability of self-pest control-ling of mixtures were strengthened.Meanwhile,the effects of different proportions of mix-tures on the stand growth and productivity were discussed.The rational management modelsof the above four mixtures were put forward.
出处
《安徽农业大学学报》
CAS
CSCD
1996年第1期52-67,共16页
Journal of Anhui Agricultural University
关键词
马尾松
混交林
经营模式
安徽
Pinus massoniana Mixed stand Ecological effect Management model
