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通过对低产栗林的本底调查和成因分析,划分出4种低产林类型,分别选择不同改造方式开展品种更新、密度调整、树体改造和林分扶壮等综合技术措施应用,改造规模35hm2。改造后第5~7a年栗实均产量达2 046kg/hm2,是改造前的3~6倍,其中新造更新类型单产1 974kg/hm2,换接改造类型单产2 119.5kg/hm2,实现了栗林丰产稳产和优质丰收,栗林经济效益显著提高。
Based on the background investigation and genetic analysis of low yield chestnut, four types of low yield forest were classified, and different transformation methods were selected to carry out the application of comprehensive technical measures such as variety updating, density adjustment, tree transformation and forest afforestation, and the transformation scale was 35hm2. The average output of chestnut in the 5th ~ 7th year after reformation was 2 046kg / hm2, which was 3 ~ 6 times before the reformation, among which, the newly reformed type yield was 1 974kg / hm2 and the reformed type yield was 2119.5kg / hm2, High and stable yield and good harvest, Li Lin significant economic benefits.