淹水程度对滩地枫杨木材含水率和年轮宽度的影响

Effects of Flooding on the Moisture Content and Ring Width of Pterocarya stenoptera Grown in the Beaches

就淹水程度对2组枫杨材(湿林、气干材)年轮宽度、含水率的影响进行研究。结果发现,2组间湿材含水率均达到210.0%以上,气干材含水率约为13.0%;第1组和第2组生材含水率分别为89.9%和105.3%。在0.05水平上,经T-检验2组间只有生材含水率差异显著。年轮宽度由髓心向外逐渐变窄,但年轮宽度与树木年龄回归显著性不高,相关系数均小于0.5。

Two groups of wood （wet and air-dry wood） were tested to investigate the effects of flooding on the moisture content and ring width of Pterocarya stenoptera. The results show that both of the MC of wetwood are more than 210.0%, and air-dry MC are both about 13.0%. The green MC of the two groups are 89.9% and 105.3% respectively. Only the difference of the green MC between the two groups is notable at 5% level with T-test. From pith outward, ring width becomes narrower gradually, and no significant relationship between ring width and cambium age is found.