南非种源黑荆树引种适应性与幼林施肥效应研究  

Adaptability of introduced Acacia mearnsii from South Africa and its effect of fertilizer

作　　者：孙永玉[1,2] 王华芳[3] 夏新莉[3] 尹伟伦[3] 李昆[1,2] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,昆明650224 [2]国家林业局元谋荒漠生态系统定位站,元谋651302 [3]北京林业大学生物科学与技术学院,北京100083

出　　处：《安徽农业大学学报》2010年第1期131-134,共4页Journal of Anhui Agricultural University

基　　金：国家科技部十一五科技支撑专题(2006BAD03A0101;2006BAD03A0102);中国林业科学院资源昆虫研究所院所长资金(Riricaf200803Z)共同资助

摘　　要：为探索云南滇中高原黑荆树引种适应性和对土壤肥力的生长响应,对南非种源与澳大利亚种源的生长进行对比,并对南非种源黑荆树的施肥效应进行研究。结果表明,南非种源黑荆树引种至云南滇中高原后,株高、地径、胸径、冠幅等生长调查指标明显优于已引进的澳大利亚种源,林内植株生长性状表现一致,未出现早花早实现象,表现出良好的生态适应性。南非种源幼树不同生长调查指标对施肥处理响应不同,胸径对少量施肥并不敏感;但随着施肥量的增加,不同施肥处理间差异显著,肥料对南非种源黑荆树的生长有明显的促进作用,施肥是黑荆树丰产栽培的重要技术措施。To study the adaptation of Acacia mearnsii introduced from South Africa provenance to middle Yunnan Plateau and fertilization effect on it, we compared the growth between South Africa provenance and Australia provenance, and analysed the fertilizer effect on South Africa provenance. The results show that the growth indexes of South Africa provenance are better than that of Australia provenance in plant height, basal stem diameter,DBH and crown width. The trees of South Africa provenance grow consentaneously and didn＇t appear early blooming and fruiting, which reflected South Africa provenance had an excellent adaptation in middle Yunnan Plateau. The growth indexes showed different responses to fertilization. DBH was not sensitive to low quantity of fertilization, but differenees were significant among disposals along with increasing fertilization. Fertilizer distinctly improves tree＇s growth is an important technical measure for high-yield cultivation of Acacia mearnsii.

关 键 词：南非种源 黑荆树 引种适应性 施肥效应 

分 类 号：S727.3[农业科学—林木遗传育种]