设为首页  |   加入收藏
引用本文:
【打印本页】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 126次   下载 103 本文二维码信息
码上扫一扫!
分享到: 微信 更多
不同年限温室土壤盐分变化及对土壤退化的影响
张敬敏1, 隋申利2, 李艳玮2, 魏珉3, 赵利华2
1.潍坊科技学院 山东省高校设施园艺实验室;2.山东寿光欧亚菜有限公司;3.山东农业大学园艺科学与工程学院
摘要:
为明确种植年限与土壤盐分及土壤退化间的关系,选择栽培模式和管理方式相近的温室,研究其土壤盐分、pH和交换性盐基离子随种植年限的变化趋势。结果表明:随种植年限的增加,土壤全盐量增加,第18年达1.833 g/kg;土壤K+和SO42-含量升高,Ca2+、Mg+ 和HCO3- 含量降低;土壤中Na+ 和Cl? 增量相对较少。土壤盐离子之和占全盐百分比在第6年平均为77.58%,而至第18年时为52.46%,说明随着种植年限延长,土壤盐离子组成已发生较大改变。土壤pH,第18年比第6年平均下降了1.01个单位,土壤交换性盐基下降了20.11%。因而,随温室种植年限延长,土壤盐渍化严重,酸化程度加重,交换能力下降,土壤肥力下降。
关键词:  温室  土壤  年限  盐分  退化
DOI:10.13758/j.cnki.tr.2019.06.019
分类号:S157.4
基金项目:“十二五”国家科技支撑计划项目(2014BAD05B03)、山东省高校设施园艺实验室项目(2018YY003)和山东省重点研发计划(公益类)项目(2019GSF109113)资助。
Soil Salinity Changes in Greenhouse with Years and Their Effects on Soil Degradation
Zhang Jingmin1, Sui Shenli2, Li Yanwei2, Min Wei3, Zhao Lihua2
1.Weifang University of Science and Technology,Facility Horticulture Laboratory of Universities in Shandong,Shouguang Shandong;2.Shouguang Ou-yate Vegetable Limited Company,Shouguang Shandong;3.College of Horticulture Science and Engineering,Shandong Agricultural University,Tai’an
Abstract:
To understand the relationship between cropping years and soil salinity and degradation, the greenhouses with similar cultivation pattern and management but different years were selected, and variation of soil salinity, pH and exchangeable base were studied. The results showed that: with the increase of cropping years, soil total salt content increased, and reached to 1.833 g/kg in the 18th year; K+ and SO42-contents inceresed, Ca2+, Mg2+ and HCO3- contents decreased, while Na+ and Cl? contents slightly increased. Total salt ions percentage accounted for 77.58% in the 6th year and 52.46% in the 18th year of total salt content, indicating the composition of soil salt ions were changed. Soil pH decreased by 1.01 units and soil exchangeable base decreased by 20.11% in 18th year than the 6th year. It can be concluded that with the increase of cultivation year, soil salinization and acidification became more and more serious and ion-exchange capacity decreased in greenhouse, which caused the degradation of soil fertility.
Key words:  Greenhouse  Soil  Years  Salinization  Degradation

您是第2741258位访问者
版权所有 © 《土壤》编辑部
本系统由北京勤云科技发展有限公司设计   京ICP备09084417号