CAJ | 학술논문

采用东北林业大学帽儿山实验林场1990年和2004年的固定样地调查数据及一元生物量预估模型,计算得到林场内各样地单位面积生物量,并运用地理信息系统的插值法得到整个研究地区的森林生物量分布图.在此基础上,分析了研究地区生物量的动态变化趋势及生物量与地形因子之间的关系.结果表明,经过10多年的经营,该地区的生物量呈增加趋势,生物量与海拔和坡度呈显著的相关性.通过回归分析,得到生物量与海拔高度的回归方程,并通过了统计检验.
채용동북임업대학모인산실험림장1990년화2004년적고정양지조사수거급일원생물량예고모형,계산득도림장내각양지단위면적생물량,병운용지리신식계통적삽치법득도정개연구지구적삼림생물량분포도.재차기출상,분석료연구지구생물량적동태변화추세급생물량여지형인자지간적관계.결과표명,경과10다년적경영,해지구적생물량정증가추세,생물량여해발화파도정현저적상관성.통과회귀분석,득도생물량여해발고도적회귀방정,병통과료통계검험.
The biomass of each sample plot in Maoershan Forest Farm in Shangzhi City, Heilongjiang Province was calculated according to forest inventory data of 1990 and 2004 and biomass estimation models. Then a spatial distribution map of forest biomass was got by the interpolation method in GIS. The dynamic change of biomass in the study area and the relationship between biomass and topographical factors were analyzed. Results showed that biomass in Maoershan Forest Farm gradually increased after more than 10 years of management. The relationships between biomass and elevation, slope gradient were significant. Regression equations between biomass and elevation, slope gradient were obtained by statistical hypothesis testing.