【摘要】 根据福建滨海沙地木麻黄林的标准地调查和树干解析材料,对木麻黄的树高、胸径和材积生长过程进行模拟,把木麻黄林的生长发育过程划分为幼林、速生、干材、成熟和过熟5个阶段。木麻黄在弱风区潮积沙土、泥炭性风积沙土等较好立地上生长高峰较迟出现,数量成熟期也相应推迟;在水化性风积沙土、不均性风积沙土等较差立地上生长高峰提前出现,成熟期也较早到来,表现出早熟早衰的特性。依据聚类分析和定期观测结果,把木麻黄全年生长过程划分为生长初期(3～4月),生长盛期Ⅰ(5～7月),生长盛期Ⅱ(8～9月)和生长后期(10～12月)4个时期。多元回归分析结果显示,降雨量和气温与木麻黄生长关系密切,尤以降水量对木麻黄高、径生长的影响更为显著。更多还原

【Abstract】 The growth process of tree height,diameter at breast height and volume of Casuarina equisetifolia was simulated according to investigation of the sample plots and stem andysis of Casuarina.The growing pro- cess of Casuarina Plantation was divided into 5 stages-young growth,rapid growing,stem wood,mature and overmature.The peak of growth came later on the better sites such as tidal sandy soil in weak wind area and peatful eolian sandy soil,and the quantity mature period relatively came later;On the poorer sites of hydrated eolian sandy soil and non-homogeneous eolian sandy soil,the peak of growth Came earlier,and mature period also came earlier.The annual growth process was divided into 5 periods—early(Mar～Apr),vigorous Ⅰ(May ～Jul.),Vigorous Ⅱ(Aug～Sep.)and Later(Oct～Dec.).The multivariate analysis showed,that rainfall and air temperature had close coordination with growth of Casuarina,especially the rainfall significantly effected on growth in height and diamete of Casuarina equisetifolia.更多还原