CAJ | 학술논문

分析华北落叶松人工林4个典型区域(关帝山、五台山中山区、五台山盆地区和塞罕坝)的生物量估算参数(生物量转扩因子、生物量扩展因子和根茎比)及其区域分异.结果表明:关帝山林区和五台山林区(中山区和盆地区)的生物量转扩因子平均值间无显著差异(P＞0.05)且都大于塞罕坝林区(P＜0.05);关帝山林区、五台山盆地区和塞罕坝林区的生物量扩展因子平均值间无显著差异(P＞0.05)且都小于五台山中山区(P＜0.05);生物量转扩因子和生物量扩展因子随林龄、平均胸径和蓄积量的增加而减小并趋于稳定;4个区域的根茎比平均值间无显著差异(P＞0.05);根茎比随林龄和平均胸径的增加而增加(P＜0.01),但与林分密度和蓄积量无显著相关性(P＞0.05).由于不同区域的生物量转扩因子和生物量扩展因子平均值间存在显著差异,故而建议按区域选择它们的值,并尽可能利用它们与林分测量指标的函数关系来确定.
분석화북락협송인공림4개전형구역(관제산、오태산중산구、오태산분지구화새한패)적생물량고산삼수(생물량전확인자、생물량확전인자화근경비)급기구역분이.결과표명:관제산림구화오태산림구(중산구화분지구)적생물량전확인자평균치간무현저차이(P＞0.05)차도대우새한패림구(P＜0.05);관제산림구、오태산분지구화새한패림구적생물량확전인자평균치간무현저차이(P＞0.05)차도소우오태산중산구(P＜0.05);생물량전확인자화생물량확전인자수림령、평균흉경화축적량적증가이감소병추우은정;4개구역적근경비평균치간무현저차이(P＞0.05);근경비수림령화평균흉경적증가이증가(P＜0.01),단여림분밀도화축적량무현저상관성(P＞0.05).유우불동구역적생물량전확인자화생물량확전인자평균치간존재현저차이,고이건의안구역선택타문적치,병진가능이용타문여림분측량지표적함수관계래학정.
Biomass conversion and expansion factor (BCEF),biomass expansion factor (BEF) and root:shoot ratio (R/S) of Larix principis-rupprechtii plantations in four typical regions (i.e.Guandi Mountain,Middle-alpine zone of Wutai Mountain,Basin zone of Wutai Mountain,and Saihanba Forest Region) were calculated,and then their heterogeneities were analyzed.Results showed that:1) there was no statistical difference of mean BCEF between Guandi Mountain and Wutai Mountain (P＞0.05),but the mean BCEF was greater than that in Saihanba Forest Region (P＜0.05).Mean BEF in Middle-alpine zone of Wutai Mountain was greater (P＜0.05) than that in the other regions among which there were no significant differences in BEF (P＞0.05).BCEF value,as well as BEF,decreased and tended to stabilization with increasing stand age,mean DBH and standing volume.2) there was no statistical differences of mean R/S among regions (P＞0.05).R/S value had positive correlations with stand age and mean DBH (P＜0.01),but had no significant correlations with standing volume and stand density.Based on these significant differences among regions,we recommend to select BCEF and BEF values in the given distribution regions.If possible,it is better to use the variable BCEF and BEF as functions of stand measured factors (e.g.stand age,mean DBH,and standing volume).