摘要
以莫莫格湿地为研究对象 ,研究了氮磷在湿地土壤中的空间分布。结果表明 ,表层土壤全氮、全磷含量显著高于下层土壤 ,土壤全氮的水平变异性较全磷强 ;全氮和全磷的垂直分布总体变化趋势均为由上到下依次减少 ,且都以 5 0 cm处为其变化转折点 ,但全氮的变化较全磷快 ;全磷、全氮含量与土壤有机质、N/ P比极显著相关 ,但p H值对其影响十分微弱。
Momoge wetland was chosen as study area, and spatial distribution of t otal nitrogen (TN) and total phosphorus(TP) in wetland soil was studied. T he results show that TN content and TP content in surface soil are obvio usly higher than those in subsoil; TN has the higher horizontal variability than TP; The variant tendency of vertical distributions of TN and TP gradually decre ases from the upper to the lower with 50cm soil layer as the turning point of th eir variations, however, TN varies more sharply than TP; TN content and TP conte nt have significantly positive correlation with soil organic matter and the rati o of nitrogen and phosphorous, but pH values affect weakly.
出处
《水土保持学报》
CSCD
北大核心
2001年第4期79-81,共3页
Journal of Soil and Water Conservation
基金
中国科学院湿地创新项目"中国典型湿地水陆相互作用过程
资源环境效应与调控 ( KZCX-30 2 )"
中国科学院湖沼三期项目"松嫩平原霍林河流域沼泽资源环境动态效应与优化管理 ( ZKHZ-0 3-0 6)"资助
关键词
莫莫格湿地
土壤
全氮
全磷
空间分布
Momoge
wetland soil
total nitrogen
total p hosphorus
spatial distribution
