以吉林省汪清县臭松天然次生林为研究对象,利用172块小班数据、178块复位样地数据及96株解析木数据,依据臭松天然次生林立地质量、臭松基准年龄时优势木平均高及单位面积林分蓄积,建立了汪清臭松天然次生林立地质量综合评价系统:共划分36个立地类型,确定了立地类型对应的地位指数以及各龄阶单位面积林分蓄积量的理论值;系统将立地质量等级分为好(Ⅰ)、中(Ⅱ)、差(Ⅲ)3个等级。立地质量好(Ⅰ)的地段,海拔较高、土层较厚、坡度平缓且多为阴坡,林分结构完整,单位面积林分蓄积量高,立地质量中(Ⅱ)的地段是抚育经营的重点,以保持林分稳定,促进进展演替;立地质量差(Ⅲ)的地段,海拔较低、土层较薄、坡度大且处于阳坡、林相差、类型复杂,林分单位面积林分蓄积量低,是保护恢复的重点,立地质量综合评价系统的建立的利于臭松次生林科学经营。
In this study,natural secondary Abies nephrolepis forest of Wangqing County,Jilin Province is regard as research object using 172 subcompartment data,178 reset sample plot and 96 anatomical tree data.Based on the site classification results,the height of dominant Abies nephrolepis at the basal age,and the unit area stand growing stock,the site quality comprehensive evaluation system of the Abies nephrolepis secondary forest of Wangqing district is established.The stand unit area growing stock,the site quality is classified into three grades:good(I),medium(II) and poor(III).The site with good quality(I) has relatively high altitude,thick soil layer,gentle slope most of which are shade slopes,good forest form,complete structure and high comprehensive benefit.The medium (II) quality site is the key point of tending and management to keep the stability of the stand and to promote progressive succession.The poor (III) quality site has lower altitude,thinner soil layer,bigger slope most of which are sunny slopes,bad and complicated forest form for which differential measures can be taken based on the site evaluation results during the course of forest management.
[1] 覃林,陈平留,刘建.闽北异龄林地位质量评价方法的研究[J].福建林学院学报,1999,19(3):209-211.
[2] 陈昌雄,曹祖宁,杨英恩.天然针阔混交林立地质量的主要影响因子研究[J].福建林学院学报,2003,23(4):343-347.
[3] Louw J H,Scholes M.Forest site classification and evaluation:a South African perspective[J].Forest Ecology and Management,2002,171(1/2):153-168.
[4] 杨双保,潘德乾.小陇山林区林地立地类型划分与林地质量评价的研究[J].甘肃林业科技,2000,25(4):20-25.
[5] 袁穗波,严若贵,涂孝雷.永顺县退耕还林试验示范区立地分类及评价[J].湖南林业科技,2001,28(1):47-52.
[6] 刘平书.云南省普洱县森林立地质量评价[J].林业调查规划,2004,29(3):13-15.
[7] 朱万才,李亚洲,李梦.森林立地分类方法研究进展[J].黑龙江生态工程职业学院学报,2011,24(1):24-25.
[8] Liu Yang,Kang Xingang,Guo Yanrong,et al.A nonlinear-matrix model for the prediction of mixed uneven-aged forests growth with FORTRAN program in Changbai Mountain,China[J].International Journal of Advancements in Computing Technology,2012,4(22):163-172.
[9] 曾春阳.基于GIS的小班立地因子提取与立地评价研究[D].中南林业科技大学,2008.
[10] Skovsgarrd J P,Vanclay J K.Forest site productivity:a review of the evolution of dendrometric concepts for even-aged stands[J].Forestry,2008,81(1):13-31.
[11] 马丰丰,贾黎明,段劫,等.北京山区侧柏人工林立地指数表的编制[J].北京林业大学学报,2008,30(6):78-82.
[12] 陈永富.基准年龄立地质量评价的影响分析[J].林业科学研究,2010,23(2):283-287.
[13] 詹昭宁.用树干解析编制地位指数曲线的方法[J].林业勘查设计,1982(2):36-40.
[14] 郑聪慧,贾黎明,魏松坡,等.华北地区栓皮栎天然次生林地位指数表的编制[J].林业科学,2013,49(3):80-84.
[15] 王雪梅.陕西渭北刺槐林分生长收获模型研究[D].西北农林科技大学,2001.
[16] 孟宪宇.测树学[M].中国林业出版社,2011.
