河北省油松林面积和蓄积分布规律研究  

Study on distribution regularities of Pinus tabulaeformis forest area and volume in Hebei province

作　　者：张炜 ZHANG Wei(Institute of Forestry and Grassland Survey Planning and Design of Hebei Province,Shijiazhuang 050051, China)

机构地区：[1]河北省林业和草原调查规划设计院,河北石家庄050051

出　　处：《林业与生态科学》2020年第2期153-156,共4页Forestry and Ecological Sciences

基　　金：河北省林业厅科技项目(1403451)。

摘　　要：为了解河北省油松林面积和蓄积量的分布规律,以河北省油松调查数据为依据,对河北省不同地区、不同龄组的油松林面积、平均小班面积、蓄积量和单位面积蓄积量分布规律进行比较。结果表明:①河北省油松林总面积49.23万hm^2,平均小班面积2.6460 hm^2,总蓄积量2545.63万m^3,单位面积蓄积量51.71 m^3/hm^2,主要分布在河北省东北部和最西部。②油松林面积和蓄积量承德地区最大,衡水地区和沧州地区最小;平均小班面积邢台最大(4.0559 hm^2),衡水最小(1.3252 hm^2);单位面积蓄积量大小排序为:承德(60.15 m^3/hm^2)、张家口(52.26 m^3/hm^2)、邢台(52.13 m^3/hm^2)、唐山(51.97 m^3/hm^2)、保定(41.91 m^3/hm^2)、秦皇岛(37.33 m^3/hm^2)、石家庄(36.55 m^3/hm^2)、邯郸(35.73 m^3/hm^2)、廊坊(27.1 m^3/hm^2)、衡水(14.43 m^3/hm^2)、沧州(6.10 m^3/hm^2);③中龄林面积最多,过熟林面积最少;平均小班面积过熟林最大(3.376 hm^2),幼龄林最小(2.256 hm^2);蓄积量近熟林最大,过熟林最小;单位面积蓄积量随林龄的增加而增加。研究结果旨在为河北省油松适地适树造林及经营管理提供科学依据。In order to understand the distribution regularities of Pinus tabulaeformis forest area and volume in Hebei province,The statistic data of Pinus tabulaeformis forests inventory in Hebei province was taken for this research.The distribution of the area of Pinus tabulaeformis and average subcompartment,and the distribution of the total and per unit area volume in different regions and age groups in Hebei province were studied.The results are as follows:①Pinus tabulaeformis is mainly distributed in northeastern and western parts of Hebei,total area of which is 492.3 thousands hm^2,the average subcompartment area is 2.6460 hm^2,total stand volume is 25.4563 millions m^3 and per unit area volume is 51.71 m^3/hm^2.②Both of area and volume of Pinus tabulaeformis are the largest in Chengde and the smallest in Hengshui and Cangzhou.Meanwhile,average subcompartment area is the largest in Xingtai(4.0559 hm^2)and the smallest in Hengshui(1.3252 hm^2).All prefecture-level cities in Hebei are sorted according to per unit area volume of Pinus tabulaeformis:Chengde(60.15 m^3/hm^2)>Zhangjiakou(52.26 m^3/hm^2)>Xingtai(52.13 m^3/hm^2)>Tangshan(51.97 m^3/hm^2)>Baoding(41.91 m^3/hm^2)>Qinhuangdao(37.33 m^3/hm^2)>Shijiazhuang(36.55 m^3/hm^2)>Handan(35.73 m^3/hm^2)>Langfang(27.1 m^3/hm^2)>Hengshui(14.43 m^3/hm^2)>Cangzhou(6.10 m^3/hm^2).③The middle-aged Pinus tabulaeformis forest occupies the largest area and the over-mature forest is the least.The average subcompartment area of over-mature Pinus tabulaeformis forest is the largest(3.3757 hm^2)and that of young forest is the least(2.2563 hm^2).For volume,the near-mature trees occupies the largest area and the over-mature trees are the smallest.Volume of per unit area increases with the increase of forest age.The result of the study can be applied to planting Pinus tabulaeformis for afforestation with the principles of matching species with the site.

关 键 词：河北省 油松 蓄积量 小班面积 

分 类 号：S791.254[农业科学—林木遗传育种]