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桂东南三个主要薪炭树种的养分特点及其幼林的生态效益
罗天祥; 李信贤; 胡舜士;
1.广西农业大学林学院;2.中国科学院植物研究所
摘要:
本文对博白和岑溪县薪炭试验林的窿缘按、刺栲和大叶相思三个树种的养分特点进行了初步分析,提出窿缘桉属氮磷钙锰养分相关型.刺栲属氮磷钾锰养分相关型,大叶相思属磷钾养分相关型;发现三个树种对钙元素具有强烈的吸收特点。五年生幼林土壤肥力明显提高,生态效益显著。
关键词:  薪炭林  养分特点  生态效益  
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