滇中地区滇青冈萌生灌木群落地上部分生物量的研究

本文对滇中地区分布的滇青冈萌生灌木群落.在群落学调查的基础上,应用收获法和维量分析法相结合,对群落生物量和主优势种——滇青冈树种地上部分的生物量,生物量的径级分布,各器官生物量的分布,及其各层生物量的分布规律的研究.以提供对这类萌生栎类灌丛开发利用、保护、经营管理方面的科学依据.

Study on upground Biomass of Cyclobalanopsis glaucoides Sprouted Shrub Community in the central part of Yunnan plateau

In this paper, combining harvest methed with the method of dimension analysis, the upground biomass of Cyclobalanopsis glaucoides sprouted shrub commanity above the ground in Fumin county of Kunming region has been studied. The results are: ( 1) The gross average biomass of Cyclobalanopsis glaucoides sprouted shrub community is 25. 34 t / hm2In which, the biomass of first shrub layer is 19 t / hm2, the biomass of second layer is 4.4 t / hm2, the biomass of herbaceous layer is 1.58 t/hm2of less, and the biomass of withered layer is 0.35 t/ hm2. ( 2) The law of distribution of organ biomass of dominant species is as follow: When the age and base diameter of branch are smaller, the proportion of biomass of leave and xylem is bigger, or the smaller ( 3) The gross average producivity of sprouted branch increasis along with the increasing base diameter. ( 4) The law of relativity of measuration factors of dominant species and it's biomass is as follow: The base diameter of branch and it's biomass is close, the hight, age, leave area and it's biomass is loose. All of these can be used as the reference of some departments and units concerned.