Crop cultivation and the change of soil salt contents

被引:0
|
作者
雷玉平
田魁祥
孙景玉
山崎素直
但野利秋
机构
[1] 中国科学院石家庄农业现代化研究所
[2] 日本东京大学
[3] 日本北海道大学 石家庄 050021
[4] 东京都 113
[5] 札幌市 060
关键词
农田耕作; 土壤盐分含量; 脱盐;
D O I
暂无
中图分类号
S153 [土壤化学、土壤物理化学];
学科分类号
0903 ; 090301 ;
摘要
雷玉平,田魁祥,孙景玉,山崎 素直,但野 利秋:农田耕作与土壤盐分的变化,《生态农业研究》,3(3)1995:71—74 采用原状土隔离池进行了盐分运移的定位试验。结果表明:含盐量0.11—0.28%的轻盐渍化或脱盐潮土处在不断脱盐过程中,平均年脱盐速率为0.0125%;小麦种植期,土壤处于返盐过程,盐分在上层积累;夏玉米种植期,土壤处于脱盐过程;盐分运动是一个盐离子的层次间传递过程,不同盐离子传递的强度不同,以氯根和钠离子变动最大,而硫酸根和钙离子变幅较小,碳酸根较稳定。
引用
收藏
页码:73 / 76
页数:4
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