摘要
对廊坊永清蔬菜大棚土壤的盐分积累状况进行采样调查，判断该区土壤盐渍化程度。结果表明：永清蔬菜大棚0～40cm土壤的EC平均值达到2．74mS／cm，比相邻粮田增加了3．5倍，表层土壤盐分含量最高，所测定各种盐离子除HCO3^-含量呈降低的趋势外，其它均有不同程度的增加，其中K^＋、Na^＋含量分别增加了1184％和4509／6，SO4^2-和Cl^-含量分别增加了434％和695％，并随着种植年限的增加盐分呈增加的趋势。
This paper had studied the situation of soil salinity of greenhouse vegetables in Langfang. The results showed that：Yongqing vegetable greenhouses 0-40 cm of soil EC reached 2.74 mS/cm on average, than the adjacent grain had increased 3.5 times, the highest salt content was in surface soil;determined in addition to various salt ions HCO3^- content in the trend of decreasing, the others had varying degrees of increasing, K^＋ , Na^＋ content increased by 1 184% and 450%, SO4^2- and Cl^-content increased by 434% and 695% ;and salt was an increasing trend with the increasing planting period.
出处
《北方园艺》
CAS
北大核心
2010年第9期71-72,共2页
Northern Horticulture
基金
廊坊师范学院科学研究资助项目(LS200515)
关键词
蔬菜大棚
盐分
空间分布
种植年限
greenhouse vegetables
salt
the spatial distribution
planting period
