摘要
为了探讨沉积物中氮磷的分布特征及其资源化利用潜力,采集了哈素海湖底的20个沉积物样品,并进行了相关的分析和研究。结果表明:哈素海湖底各采样点表层沉积物中全氮、碱解氮、全磷、有效磷分别为0.15～2.14 g/kg、49.01～177.14 mg/kg、0.30～0.45 g/kg、11.91～23.53 mg/kg,其空间分布特征和变化趋势差异表现较大。从垂向分布特征来看,全氮、碱解氮含量呈现随沉积物深度的增加而减少的趋势,与近年来向湖泊水体中输入的氮量明显增加有关,而全磷、有效磷含量在垂向分布上并无明显变化,表明近年来外源输入的磷没有明显增加的趋势。与其他湖泊对比分析,哈素海湖底泥资源化利用潜力较大,具有一定的农业价值。
In order to explore the distribution characteristics of nitrogen and phosphorus elements in sediments and its potential of resource utilization,20 sampling points of sediment at Hasuhai Lake,Inner mogolia were analyzed.The results showed that total nitrogen,available nitrogen,total phosphorus and available phosphorus in the surface sediments were0.15~2.14 g/kg,49.01~177.14 mg/kg,0.30~0.45 g/kg,and 11.91~23.53 mg/kg,respectively,the spatial distribution characteristics and change trend of these indicators were different.In terms of vertical distribution,the total nitrogen and available nitrogen content decreased with the increase of sediment depth,which was related to the significant increase of nitrogen input into the lake in recent years.However,there was no significant change in the vertical distribution of total phosphorus and available phosphorus,indicating that there was no significant increase in the amount of phosphorus imported from outside sources.Comparing with other lakes,it can be confirmed that the sediment of Hasuhai Lake has great potential for resource utilization and has certain value as agricultural resources.
作者
孙标
杨志岩
赵胜男
朱永华
田卫东
SUN Biao;YANG Zhi-yan;ZHAO Sheng-nan;ZHU Yong-hua;TIAN Wei-dong(Water Conservancy and Civil Engineering College,Inner Mongolia Agricultural University,Hohhot Inner Mongolia 010018;Inner Mongolia Institute of Geo-environment Monitoring,Hohhot Inner Mongolia 010020)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2019年第2期194-200,共7页
Soil and Fertilizer Sciences in China
基金
国家自然科学基金项目(51869020)
内蒙古自然科学基金项目(2017BS0510
2016MS0406)
关键词
哈素海
沉积物
氮磷元素
资源化利用
Hasuhai Lake
sediment
nitrogen and phosphorus
resource utilization
