农业环境科学学报2009，Vol.28Issue(10)：2098-2103,6.
农村土地利用方式对嘉兴土壤氮磷含量及其垂直分布的影响
Effects of Rural Land Uses on Contents and Vertical Distribution of Nitrogen, Phosphorus in the Soil Profile in Jiaxing Region
摘要
Abstract
In order to investigate contents and vertical distribution of nitrogen, phosphorus in the soil profile as affected by rural land uses, soil samples were collected at soil depths of 0～5, 5～20, 20～40,40～60 and 60～80 cm from the fields of paddy rice, vegetables, fruit orchards, live-stock farms and rural courtyards in Jiaxing region. Results showed that the contents of total nitrogen(TN) and total phosphorus(TP), and the concentration of Olsen P were decreased with a decrease in soil depths down the soil profile. The soil TN differed significantly at 0～40 cm but tended to become similar at 40～80 cm. The TP and Olsen P in the soil profile, however, varied significantly with land uses. The average con-tent of TP in the whole soil profile of vegetables, fruit orchards, livestock farms and rural courtyards was 4.0, 2.1, 1.9 and 1.8 times of that in the paddy rice soil profile, while the Olsen P in the whole soil profile of livestock farms, rural courtyards, fruit orchards and vegetables was 35.5, 10.6, 10.0 and 4.4 times of that in paddy field rice profile, respectively.关键词
农村土地利用方式/垂直分布/速效磷/全氮/全磷Key words
rural land uses/ vertical distribution/ total nitrogen/ Olsen P/ total phosphorus分类
农业科技引用本文复制引用
罗春燕,张维理,雷秋良,林超文..农村土地利用方式对嘉兴土壤氮磷含量及其垂直分布的影响[J].农业环境科学学报,2009,28(10):2098-2103,6.基金项目
国家科技支撑计划(2006BAD05B03) （2006BAD05B03）
国家"863"计划(2006AA10Z270) （2006AA10Z270）
