干旱区生态环境知识资源中心(Arid): 夏季覆盖盐碱地表面对土壤盐分和水分的影响

Arid

	夏季覆盖盐碱地表面对土壤盐分和水分的影响
其他题名	Study on the Effects of Covering Land on Salt and Moisture Contents in Saline or Alkaline Soil in Summer
	纪永福 1; 蔺海明 2; 杨自辉 1; 贺访印 1; 刘虎俊1
ISSN	1001-4675
出版年	2007
卷号	24 期号:3 页码:375-381
中文摘要	在干旱区土壤水分蒸发损失引起土壤盐分表聚是土壤次生盐碱化的一个重要原因.在夏季高温时节,采用塑料薄膜、麦草和沙子覆盖盐碱地表面,结果表明,具有较好地改良盐碱地的作用.塑料薄膜宜采用全地面覆盖,麦草的覆盖量应为2 934.8 kg/hm~2;沙子的覆盖厚度以4 cm为宜.覆盖后对土壤中各离子的抑制作用顺序为:K~++Na~+＞ Cl~-＞ SO_4~(2-)＞Mg~(2+)＞HCO_3~-＞Ca~(2+).3种覆盖材料以塑料薄膜效果最佳.
英文摘要	In arid areas, salt accumulation in topsoil, caused by moisture evaporation from soil, is one of the main factors causing secondary soil salinization. In this experiment, plastic film, wheat straw and sand are used to cover saline or alkaline soil in hot summer. The results show that the saline or alkaline soil can be effectively improved by covering land with the 3 kinds of materials, and such way is one of the important measures to reduce evaporation from soil and restrain salt accumulation in topsoil. Based on the research results, it is recom mended that land should be completely covered if plastic film is used, the optimal amount of wheat straw used to covering saline or alkaline soil should be 2934. 8 kg/hm~2, and the thickness of covering sand layer should be 4 cm. After saline or alkaline soil is covered, the restraining role to different ions in soil is in an order of K~+ + Na > Cl~- > SO_4~(2-) > Mg~(2+) > HCO_3~-> Ca~(2+) , especially the effect of improving soil in soil layer of 0~10 cm is more significant. The effect of plastic film in restraining salt accumulation in topsoil is the highest in the 3 kinds of materials.
中文关键词	夏季 ; 盐碱地 ; 覆盖 ; 塑料薄膜 ; 麦草 ; 土壤盐分 ; 土壤水分
英文关键词	summer saline or alkaline soil cover soil salt content soil moisture content
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:2826817
来源机构	甘肃农业大学 ; 甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220981
作者单位	1.甘肃省治沙研究所, 甘肃省荒漠化防治重点实验室, 武威, 甘肃 733000, 中国; 2.甘肃农业大学,农学系, 兰州, 甘肃 730019, 中国
推荐引用方式 GB/T 7714	纪永福,蔺海明,杨自辉,等. 夏季覆盖盐碱地表面对土壤盐分和水分的影响[J]. 甘肃农业大学, 甘肃省治沙研究所,2007,24(3):375-381.
APA	纪永福,蔺海明,杨自辉,贺访印,&刘虎俊.(2007).夏季覆盖盐碱地表面对土壤盐分和水分的影响.,24(3),375-381.
MLA	纪永福,et al."夏季覆盖盐碱地表面对土壤盐分和水分的影响".24.3(2007):375-381.