地形因子及整地方式对桉树人工林生长的影响  

The growth effects of Eucalyptus plantations at site types and soil preparation modes

作　　者：陈应彪 杨曾奖[2] 蒋虎 苏树祥 曹平 

机构地区：[1]广东省饶平县林业科学研究所,广东饶平515745 [2]中国林业科学研究院热带林业研究所,广东广州510520 [3]广西斯道拉恩索林业有限公司,广西合浦536100

出　　处：《热带林业》2014年第1期23-26,共4页Tropical Forestry

基　　金：中央级公益性科研院所基本科研业务费专项资金项目"桉树人工林可持续经营技术研究与示范"(编号:CAFYBB 2012046)

摘　　要：通过对不同坡向、坡位、坡度等地形因子以及整地方式对桉树人工林的保存率、年均胸径、年均树高的影响进行研究,结果表明:不同坡向对桉树人工林保存率、年均胸径、年均树高的影响趋势相同,均表现为偏南坡向比偏北坡向好;不同坡位对桉树人工林的保存率影响不大,对桉树人工林的年均胸径、年均树高的影响,随着坡位的降低生长表现越好;不同坡度对桉树人工林保存率、年均胸径、年均树高的影响表现为随着坡度的降低生长表现越好,保存率影响不大;不同整地方式对桉树人工林的保存率、年均胸径、年均树高的影响均表现为人工挖穴的最差,机械全垦的最好。因此选择不同地形进行桉树人工林造林时,应选择坡向偏南、坡位偏下、坡度<10°的立地类型,并采用机械全垦的模式,才能获得最佳的产量。Studied the survival, DBH per year, height per year of Eucalyptus plantations, based on site type factors such as different slope direction, slope position and slope and soil preparation methods. The results show that the effects of survival, DBH per year, height per year of eucalyptus plantation at different slope direction were the same, all showed that the south slope direction were beeter than north slope direction. There were little effect of survival of Eucalyptus plantation at different slope positions. There were same performance of DBH per year and height per year of eucalyptus plantation at different slope positions, for the lower of slope position, the better of growth performance. The effects of survival, DBH per year and height per year of Eucalyptus plantation at different slope were performance as the more little of slope, the better of growth performance. The effects of survival, DBH per year and height per year of Eucalyptus plantation for different soil preparation methods, were all perfomance as that the artificial digging mode were the worst performance, and the machine conprehensive digging mode were the bestperformance. Choose the site type as the south direction slope, lower slope positions, < 10 ° and combination with the mechanical reclamation mode, and in this way, there should gotten the best production of Eucalytus plantation.

关 键 词：坡向 坡位 坡度 整地方式 桉树人工林 保存率 年均胸径 年均树高 

分 类 号：S792.39[农业科学—林木遗传育种]