【摘要】 为了确定气候因子对樟子松人工林树高生长的影响,为以后的樟子松人工造林和经营管理提供科学的依据,本文通过对内蒙古凉城县蛮汉山林场樟子松人工林进行调查,利用蛮汉山林场樟子松6块标准地调查的解析木数据,结合凉城县气象站多年的气象资料,采用因子分析法和回归分析法研究了樟子松人工林树高生长与气候因子的关系。研究结果表明:影响蛮汉山樟子松人工林树高生长的气候因子顺序是:年平均风速(x6)>年平均湿度(x5)>年降雨量(x4)>年极低温度(x3)>无霜期(x7)>年平均气温(x1)>年极高温度(x2);年平均风速(x6)和年平均湿度(x5)是影响蛮汉山地区樟子松人工林树高生长的两个主导气候因子;通过主成分分析,进一步得知水分是影响该地区樟子松人工林树高生长的关键因素;最后建立了樟子松树高连年生长量与气候因子之间的数学回归模型。更多还原

【Abstract】 In order to make sure the impact of climate factors on the height growth of Pinus sylvestris plantation,and provide scientific basis for artificial forestation of Pinus sylvestris and management in the future.Based on investigation of Pinus sylvestris plantation in Manhanshan forest farm in Liangcheng County of Inner Mongolia,using trees data by investigating the six sample lands of Pinus sylvestris plantation,combining the meteorological data for years provided by Liangcheng County Weather Station,the relations of height growth of Pinus sylvestris plantation and climate factors were studied with factor analysis and regression analysis.The results show that the sequence of climate factors impacting the height growth of Pinus sylvestris plantation is that the average annual wind speed(x6)> the average annual humidity(x5)> annual rainfall(x4)> annul minimum air temperature(x3)> no-frost date(x7)> the average annual air temperature(x1)> annul maximal air temperature(x2),and that the average annual wind speed(x6) and the average annual humidity(x5) were dominant climate factors that impacted the height growth of Pinus sylvestris plantation.Through principal component analysis,we can further inform that the water was the key factor that impacted the height growth of Pinus sylvestris plantation in the region.Finally,the mathematical regression model between annual height growth of Pinus sylvestris and climatic factors was set up.更多还原