【摘要】 通过对长白山地区典型样地的调查、测定和分析 ,以红松、水曲柳为代表树种 ,对其进行了能量与物质研究 ,得出红松和水曲柳的化学能模型以及物质含量变化图 ,从而为揭示森林生态系统中物质与能量的运动规律提供了科学依据更多还原

【Abstract】 Through investigation?titration and analysis on typical sampling sites in Changbai Mountains, the paper takes Pinus koraiensis and Fraxinus mandshurica as examples, analyzes their chemical energy and material content. In accordance with complication and illinearity of energy current in ecosystem, the apporach of Monte Carlo is adopted. Through imitation on computers over 10 000 times, the imitated results come to stable level and they are very close to the real investigated results. Furthermore, the models of chemical energy stored in Pinus koraiensis and Fraxinus mandshurica are built. Through the relative coefficient test and relativity test, it shows that changes of chemical energy stored in both two trees are outstanding with age changes. For material content analysis of both two trees, through titration four figures show their change laws. Both energy and material analysis all show that the chemical energy stored in Pinus koraiensis is more than that in Fraxinus mandshurica, therefore the former’s lifespan is longer than the latter’s. The research results put forward scientific basis for discoursing on the law of motion of energy and material in forest ecosystem.更多还原