空心村整治不同还田材料对冬小麦越冬前土壤水分的影响

发布时间：2018-04-04 07:36

本文选题：空心村　切入点：复垦　出处：《水土保持研究》2017年04期

【摘要】：在进行空心村整治复垦的同时,需添加适当的材料来提高其可耕性,通过研究不同还田材料在冬小麦越冬前的土壤水分含量及剖面储水状况,来选择保水性较好的材料进行空心村整治还田。采用烘干法,分别在无还田材料,有机肥(鸡粪)还田,粉煤灰还田,有机肥+粉煤灰还田四种处理下,在冬小麦的出苗期、三叶期和分蘖期测定土壤剖面105cm内水分含量,每15cm测定一次,并计算各个生育期的土壤储水量。结果表明:用不同材料进行空心村整治还田的土壤水分含量不同,在冬小麦越冬前,用有机肥加粉煤灰还田后土壤0—105cm剖面各土层平均含水量为18.69%,比单独用有机肥还田高出1.72%,比单独用粉煤灰还田高出1.07%,比无还田材料高出2.84%。土壤剖面储水量也以使用有机肥加粉煤灰还田后的为最大,为239.01mm,高于单独用有机肥的18.17mm,高于单独用粉煤灰还田处理的18.92mm,高于无还田材料的26.05mm。因此,在对空心村进行整治复垦为耕地时,就水分利用及储水保水性而言,用有机肥加粉煤灰进行空心村整治还田处理时土壤水分状况最佳。
[Abstract]:At the same time, proper materials should be added to improve the tillability of hollow village reclamation. The soil moisture content and profile water storage status of different returning materials before winter wheat winter were studied.To select better water retention materials for the hollow village renovation return field.Under the four treatments of no returning material, organic manure (chicken manure), fly ash and organic fertilizer fly ash, respectively, the moisture content of 105cm in soil profile was measured at seedling stage, three-leaf stage and tillering stage of winter wheat.Each 15cm was measured and soil water storage was calculated for each growth period.The results showed that the soil moisture content was different when the hollow village was renovated by different materials, and the soil moisture content was different before winter wheat overwintering.The average water content of soil 0-105cm profile was 18.69, 1.72 higher than that of organic fertilizer alone, 1.07% higher than that of fly ash alone, 2.84% higher than that of non-returning material.The maximum amount of soil water storage in soil profile was 239.01 mm after using organic fertilizer and fly ash, which was higher than 18.17 mm in organic fertilizer alone, 18.92 mm in fly ash alone, and 26.05 mm in non-returning material.Therefore, when the hollow village is reclaimed as cultivated land, the soil moisture condition is the best when the hollow village is treated with organic fertilizer and fly ash in terms of water use and water storage and water retention.
【作者单位】：陕西省土地工程建设集团陕西地建土地工程技术研究院国土资源部退化及未利用土地整治工程重点实验室;
【基金】：国家科技支撑计划“山地丘陵区空心村整治关键技术集成示范”(2014BAL01B03)
【分类号】：S152.7;S512.11

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