皆伐对杉木林土壤养分的短期影响  

Short-term Effects of Clear Cutting on Soil Nutrients in a Chinese Fir Stand

作　　者：薛立[1] 薛晔[2] 李燕[1,3] 傅静丹[1] 郑卫国 

机构地区：[1]华南农业大学林学院,广东广州510642 [2]浙江工业大学,浙江杭州310023 [3]中国林业科学研究院林业研究所,北京100091

出　　处：《水土保持通报》2009年第5期73-75,89,共4页Bulletin of Soil and Water Conservation

基　　金：广东省林业局项目"东江水源涵养林林分改造的研究"(4400-07041)

摘　　要：对杉木林刚皆伐和皆伐半年后的土壤剖面的pH值、有机质、水解性氮、速效磷和速效钾含量进行了分析,目的在于为杉木人工林的更新和维护地力的机制提供依据。与刚皆伐各土层的土壤相比,皆伐半年后相应土层的土壤pH值均有所下降,土壤有机质及除土层0—5cm外的速效磷和速效钾含量均有所增加,而水解性氮含量在一些土层增加,在其它土层中下降。The paper dealt with soil nutrients of a Chinese fir stand after clear cutting in Yunyong Forest Farm based on the determination of soil pH value,soil organic matter,hydrolyzable nitrogen,available phosphorus,and available potassium in 0—100 cm layer in October,2004 and April,2005.The study may provide a scientific basis for Chinese fir stand reforestation and site productivity maintenance.Compared with all the soil layers in 2004,the pH values of all the soil layers in 2005 decreased;the contents of soil o...

关 键 词：杉木林 皆伐 土壤养分 

分 类 号：S714[农业科学—林学]