%0 Journal Article
%A 2
%A 2
%A 2
%A 2*
%A LI Zhan-Jun1
%A XING Ying-Ying1
%A YANG Feng-Jian1
%A ZU Yuan-Gang1
%T Change of Ion Content and Particle Size of the Modified Severe Saline-alkali Soil
%D 2015
%R 10.7525/j.issn.1673-5102.2015.05.024
%J Bulletin of Botanical Research
%P 786-790
%V 35
%N 5
%X <div style="line-height: 150%">We studied the ion content and particle size of soil that modified by four treatments, with the severe saline-alkali soil of Zhaodong City, Heilongjiang Province. Four treatments were CK(Control), Bar treatment(Small hole improvement-Bar foraging ditch-In situ repair), Cross treatment(Small hole improvement-Cross foraging ditch-In situ repair) and Grid treatment(Small hole improvement-Grid form of foraging ditch-In situ repair). Different improvement treatments changed the severe saline-alkali soil ion content dramatically, and significantly improved the soil activated Al content, the content of exchangeable Ca, and Mg(<em>P</em>＜0.05). The sulfate content, chlorine ion content, and carbonate content in the soil were significantly increased(<em>P</em>＜0.05). The granulation of soil was observed under the scanning electron microscope(SEM), and the fragmentation degree, and porosity were increased significantly. Therefore, three different improvements of saline-alkali soil made the soil composition and physical structure different from the original saline-alkali substrate, and effectively improved the soil salinity.</div>
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2015.05.024