期刊文献+

种植条件下不同调控措施对土壤盐分动态的影响特征 被引量:3

Effects of Different Measurements on Soil Salinity Dynamics Under Cropping
收藏 分享 导出
摘要 本文研究了种植条件下不同调控措施对土壤表层5cm处电导率的影响状况并将表层电导率变化曲线划分为三个阶段.分析了施肥、灌溉、覆盖、以及施用改良剂等调控措施,对土壤盐分在不同阶段的过程及机理的差异.施肥、灌溉主要是在作物生长后期对水盐运移发挥作用,而施用改良剂对前期水平间的差异较大,后期可降低土壤表层电导率.在影响程度上,施肥与灌溉水平间的差异比覆盖和施用改良剂要明显. Based on the electric conductivity in 0-5cm soil layer under planting, the curves of electric conductivity could be divided into three parts. And means and mechanism of salinity dynamics under different measurements, including fertilization, irrigation, covering-crop, modifier, were also analyzed. The factors of fertilization and of irrigation had good effects on salinity and water during anaphase of plant growth, whereas the factor of applying modifier had goods effect on prophase. As far as degree was concerned, effects of the former two factors were more obvious than the latter ones.
作者 李海锋 杨劲松 陈德明 LI Hai-feng, YANG Jin-song, CHEN De-ming (Institute of Soil Science, Chinese Academy of Sciences, Jiangsu Nanjing 210008, China)
出处 《土壤通报》 CAS CSCD 北大核心 2001年第z1期64-67,共4页 Chinese Journal of Soil Science
基金 国家重点基础发展规划项目(G1999011803)的经费资助
关键词 电导率 调控 盐分动态 Electric conductivity Salinity dynamics Planting Measurement
  • 相关文献

参考文献12

二级参考文献21

共引文献224

同被引文献24

引证文献3

二级引证文献13

投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈