南京林业大学学报(自然科学版)
南京林業大學學報(自然科學版)
남경임업대학학보(자연과학판)
JOURNAL OF NANJING FORESTRY UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
5期
1-5
,共5页
杨树人工林%生长与收获模型系统%立地质量%林分年龄%林分密度
楊樹人工林%生長與收穫模型繫統%立地質量%林分年齡%林分密度
양수인공림%생장여수획모형계통%입지질량%림분년령%림분밀도
poplar plantation%growth and yield models%site quality%stand age%stand density
基于南方杨树人工林各类试验固定标准地和历年调查收集的临时标准地共213块样地数据,构建了适合我国南方地区杨树人工林生长与收获的模型系统。系统模型集成了林分平均直径与断面积、林分直径分布、树高曲线和削度方程模型,以林分立地质量、林分年龄与林分密度为模型的控制变量,按不同经营强度类型给出了林分蓄积量与出材量收获模型,并开发了具有自主知识产权的系统软件。旁置样地检验表明:应用该杨树人工林生长与收获系统模型可以得到林分蓄积量与出材量的可靠估计,平均相对误差<10%。
基于南方楊樹人工林各類試驗固定標準地和歷年調查收集的臨時標準地共213塊樣地數據,構建瞭適閤我國南方地區楊樹人工林生長與收穫的模型繫統。繫統模型集成瞭林分平均直徑與斷麵積、林分直徑分佈、樹高麯線和削度方程模型,以林分立地質量、林分年齡與林分密度為模型的控製變量,按不同經營彊度類型給齣瞭林分蓄積量與齣材量收穫模型,併開髮瞭具有自主知識產權的繫統軟件。徬置樣地檢驗錶明:應用該楊樹人工林生長與收穫繫統模型可以得到林分蓄積量與齣材量的可靠估計,平均相對誤差<10%。
기우남방양수인공림각류시험고정표준지화력년조사수집적림시표준지공213괴양지수거,구건료괄합아국남방지구양수인공림생장여수획적모형계통。계통모형집성료림분평균직경여단면적、림분직경분포、수고곡선화삭도방정모형,이림분입지질량、림분년령여림분밀도위모형적공제변량,안불동경영강도류형급출료림분축적량여출재량수획모형,병개발료구유자주지식산권적계통연건。방치양지검험표명:응용해양수인공림생장여수획계통모형가이득도림분축적량여출재량적가고고계,평균상대오차<10%。
Based on the data collected from fixed sample plots and investigated from typical sample plots over the years, growth and yield models of poplar plantations in southern area of China were established. The established model system included stand average diameter and basal area model, stand diameter distribution model, diameter-height curve model and stem taper model. Using site quality, stand age and stand density as model?s control variables, stand volume and stand merchantable volume model were developed according to different management intensity. Moreover, the system software with independent intellectual property rights was also developed for poplar plantations in southern area of China. The sample test showed that the stand volume and merchantable volume estimated by the growth and yield models estab-lished in this paper were reliable, and the average relative error was <10%.