基于GIS与群落调查的北京市野生北柴胡资源量测算  

Estimating Medicinal Yield of Bupleurum chinense in Beijing Region Based on Field Vegetation Survey with GIS Approach

作　　者：江源[1,2,3] 任斐鹏[1,2,3] 肖雁青[3] 张文涛[3] 李俞萍[3] 熊兴[3] 

机构地区：[1]中药资源保护与利用北京市重点实验室,北京100875 [2]北京师范大学地表过程与资源生态国家重点实验室,北京100875 [3]北京师范大学资源学院,北京100875

出　　处：《自然资源学报》2009年第6期1080-1089,共10页Journal of Natural Resources

基　　金：国家科技支撑项目(2006BAI09B02-05);北京市教育委员会共建项目建设计划资助项目(SYS100270430);国家自然科学基金项目(40571001)

摘　　要：以2007年北京地区236个群落调查样方数据和典型区域300株野生北柴胡采样数据为基础，采用模型模拟、样方调查、GIS与数理统计等方法，对野生北柴胡分布与资源量进行研究。结果表明：①北京市野生北柴胡在植物群落中的种群密度介于0—6000株／hm^2之间，产量密度介于0～683kg/km^2之间，密度最大的生境为海拔1800m左右的山顶杂草草甸；②不同生境下根生物量（Y）与植株地上形态特征株高（x1）、叶片数（x2）和分枝数（x3）显著相关；③北京地区北柴胡资源分布面积为752937hm^2，资源总量约为410t；④北京市野生北柴胡资源的水平分布特征表现为，东部怀柔、密云和平谷等地产量密度低，西部和中部地区密度较高，从垂直变化规律看，北柴胡分布的主要区域集中在海拔100—2000m的范围内，随着海拔高度的增加，产量密度表现出先增加后减少的总体趋势。The medicinal yield （root weight） of Bupleurum chinense, a traditional Chinese medicinal herb species, in Beijing Region was estimated in this paper, based on the field vegetation survey conducted in 2007 with GIS approach and Generalized Additive Model （GAM）. The species＇ growing forms-height, number of leaves and number of stems-of 923 individuals were sampled among 236 quadrats distributing throughout Beijing Region. Meanwhile, 300 individuals of the whole plant were sampled and measured to determine the relationship between the plant＇ s underground medicinal yield and the aboveground growing forms through GAM analysis. The results of the research show： 1 ） The population density of Bupleurum chinense varies from 0 to 6000 individuals/hm^2 and its medicinal yield varies from 0 to 683 kg/km^2. The habitats with the highest density of the species were found at about 1800 m a. s. 1.. 2） The underground biomass （Y） is correlated significantly with the height （x1 ） , the number of leaves （x2 ） and the number of stems （x3 ） of the plant. The relationship can be characterized well by a generalized additive model, the accuracy of which depends on the amount and the distribution of the sampling. 3 ） The Bupleurum chinense covers in an area of about 752937 hm^2 in Beijing Region, and its estimated underground biomass may amount to about 410 t in total. 4） The medicinal yield （root weight） of Bupleurum chinense in different plant communities relates both to its population density and to the total area of the communities it grows in. According to the medicinal yield, the plant communities could be graded into three groups. The communities with shrub of Lespedeza bicolor, Vitex negundo var. heterophylla and/or Spiraea belong to the first grade, which takes about 82% of the total yield of Bupleurum chinense in the Region. The second grade communities consist of forests dominated by Quercus mongolica, shrubs of Armeniaea sibirica and Prunus davidiana as well as mountainou

关 键 词：群落调查 GIS 北柴胡资源量 北京地区 

分 类 号：P208[天文地球—地图制图学与地理信息工程] Q949.95[天文地球—测绘科学与技术]