欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了探究季节性冻融期玉米秸秆最佳覆盖量以及该覆盖量下的水分运移规律,采用小区试验,以裸地（LD）作对照,对3种秸秆覆盖方式（J05、J10、J15覆盖量分别为6 000、12 000、18 000kg/hm2）进行试验研究。结果表明,J10处理保水性优于J05和J15处理;在聚墒区,J05、J10和J15处理的含水率较LD分别高出2.39%、3.04%和1%;J10处理与LD相比,在冻结阶段各剖面由上至下的平均含水率之差分别为：3.7%、4.2%、5.4%、2.1%、0.2%、0.5%,说明秸秆覆盖处理能够明显增加土壤水分,对浅层土壤的保水效应强,对深层土壤影响较弱。
英文摘要：
Field experiments were performed to explore the best corn straw mulching quantity and the regularity of moisture migration under the amount of coverage during freezing and thawing season.Taken the bare land（LD）as control,and the three kinds of straw mulching（the amount of coverage were 6 000,12 000,18 000kg/hm2）for J05,J10 and J15treatments were analyzed.The results showed that water retention of J10 treatment was better than those of J05 and J15treatments,and in poly moisture area,water content of J05,J10 and J15treatments were respectively higher 2.39%,3.04% and 1% than LD.Compared with LD,the differences in average moisture content for each profile of J10 treatment from top to bottom during freezing stage were：3.7%,4.2%,5.4%,2.1%,0.2%,0.5%,respectively,and the differences increased first and then decreased,which indicated that straw mulching could significantly increase soil moisture,and had deep impact on water retention in shallow soil and weak impact on water retention in deep soil.
同期刊论文项目
同项目期刊论文
Temporal-spatial evolution patterns of the annual precipitation considering the climate change condi
期刊信息
位置：