水土保持研究2011，Vol.18Issue(6)：75-78,4.
三种造林模式对北京北部人工水源涵养林地土壤肥力的影响研究
Study on the Influence of Three Afforestation Models on Soil Fertility of Artificial Water Conservation Forest in North of Beijing
摘要
Abstract
In order to understand the effect of different afforestation models on soil fertility of artificial water conservation forest,in August 2010,we chose three afforestation models： Pinus tabuliformis＋Acer elegantulum＋Amorpha fruticosa L.（Ⅰ）,Pinus tabuliformis ＋Quercus mongolica＋ Acer elegantulum（Ⅱ） and Amygdalus davidaiana＋Castanea mollissima（Ⅲ） which were planted in Experimental Area of Artificial Water Conservation Forest in Taishitun town,Miyun county,Beijing,2008,set three plots in corresponding afforestation models： standard one（S1）,standard two（S2） and standard three（S3）.The soil fertility of the three models of water conservation forest was evaluated by applying descriptive statistical analysis.The results show that： the order of soil organic matter status in each forest is ⅡⅠⅢ,the organic matter content of S3 was 11.3 g/kg,which was 54.3% and 54% lower than that of S1 and S2,respectively;the oder of total N and total K contents is ⅠⅡⅢ,the contents of total N in Ⅰ,Ⅱ and Ⅲ were and 1.63 g/kg,1.34 g/kg and 0.80 g/kg;the contents of total K in Ⅰ,Ⅱ and Ⅲ were 2.65 g/kg,2.32 g/kg and 1.71 g/kg,respectively;the contents of the available K in Ⅰ,Ⅱ and III were 48.45 mg/kg,96.65 mg/kg and 37.75 mg/kg.The botanic species is abundant,forest canopy closure is high and quantity of litter accumulation is much in the mixed needleleaf and broadleaf forest,which significantly improves soil fertility in artificial water conservation forest.关键词
人工水源涵养林/造林模式/土壤肥力Key words
artificial water conservation forest/afforestation models/soil fertility分类
农业科技引用本文复制引用
白麟,杨建英,韩雪梅,王俭成..三种造林模式对北京北部人工水源涵养林地土壤肥力的影响研究[J].水土保持研究,2011,18(6):75-78,4.基金项目
“十一五”国家林业科技支撑计划课题 （）
