摘要
试验采用新型覆盖材料——渗水地膜,对其保墒效应进行了研究;结果表明:①渗水膜周年覆盖实现了小雨量资源有效化,增加了土壤含水量,尤其是冬春季节的降水由于渗水膜的单向渗水特性而得以膜下保存。②渗水膜中后期的保墒、提墒效果明显,春季干旱时,土壤水分供给的缓冲性能较好,0-60cm土层渗水地膜覆盖土壤含水量比普通地膜覆盖增加8%左右。
The experiment was designed to study on effect of keeping soil water by water--osmosis plastic membrane, the result indicated. Water--osmosis mulching in autumn realized the rainfall validated, and had the functions in water storage, especially during winter--spring period the rainfall was saved under the membrane based on the character of water--osmosis plastic membrane--rainfall penetration into soil. So water--osmosis plastic membrane was better than others when the maize needed water.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2005年第3期341-344,352,共5页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
渗水地膜
小雨量利用
覆盖栽培
water--osmosis plastic membrane, small rainfall resource utilization,covering cultivation
