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在我国吉林省长白山地区,红松(Pinus koraiensis)常与阔叶树种混生在一起,形成地带性顶极群落。在红松阔叶林的采伐迹地或火烧迹地上通常形成大片的次生杨桦林。研究红松阔叶林及其次生杨桦林的生物生产力,能为研究森林生态系统物质与能量的运转和养分循环提供基础资料;也能为开展“全树综合利用”提供科学依据;并有助于了解红松阔叶林的演替规律,为合理地保护、管理和利用天然红松林、营造高产、稳产的人工红松林提供理论依据。本文中的生物生产力是指生物量和净第一性生产量(简称生产量)。文内没有涉及凋落量和啃食量的测定,生产量测定的结果应略低于实际值。
Pinus koraiensis is often mixed with broadleaf species in the Changbai Mountain area of Jilin Province, China, forming a zonal climax community. Large poplar birch forests are usually formed on harvested or burned areas of the kyoto pine forest. Studying the biological productivity of the Korean pine broad-leaved forest and its secondary poplar can provide the basic information for studying the operation and nutrient cycling of the forest ecosystem’s matter and energy. It also provides a scientific basis for carrying out the “comprehensive tree utilization” and has Which helps to understand the succession rule of korean pine broad-leaved forest and provide theoretical basis for the reasonable protection, management and utilization of natural Korean pine forest and the creation of artificial korean pine forest with high yield and stable yield. Biological productivity in this paper refers to biomass and net primary production (referred to as production). The text does not deal with the determination of the amount of litter and gnawing production, the results of the determination of the amount should be slightly lower than the actual value.