磷石膏改良剂对土壤水分扩散率的影响

doi:10.13866/j.azr.2016.03.08

干旱区研究 ›› 2016, Vol. 33 ›› Issue (3): 506-510.doi: 10.13866/j.azr.2016.03.08

磷石膏改良剂对土壤水分扩散率的影响

曹诗瑜¹, 郭全恩^1,2, 车宗贤¹, 高源³, 葛洪俊³

1.甘肃省农业科学院土壤肥料与节水农业研究所,甘肃兰州 730070;
2.甘肃农业大学,甘肃省干旱生境作物学重点实验室,甘肃兰州 730070;
3.甘肃瓮福化工有限责任公司,甘肃金昌 737100

收稿日期:2014-07-24 修回日期:2014-11-13 出版日期:2016-05-15 发布日期:2016-05-31
作者简介:曹诗瑜(1974-),男,学士学位,主要从事盐碱土改良等方面的研究. E-mail: 1205211521@qq.com
基金资助:
甘肃省中青年人才科技创新成果转化扶持 “钠质碱化土壤改良剂在沿黄灌区的示范推广”;甘肃瓮福化工有限责任公司磷石膏土壤改良剂研发(TFSQYHZ-10-01);国家自然科学基金(41163002,41363004);国家科技支撑计划(2012BAD05B03);甘肃省自然科学基金(1208RJZA142)和甘肃农业大学干旱生境作物学重点实验室开放基金(GSCS-2010-15)项目共同资助

Effects of Phosphate Gypsum Agent on Soil Moisture Diffusivity

CAO Shi-yu¹, GUO Quan-en^1,2, CHE Zong-xian¹, GAO Yuan³, GE Hong-jun³

1. Institute of Soil Fertilizer and Water-saving Research, Gansu Academy of Agricultural Sciences, Lanzhou 730070,Gansu,China;
2. Gansu Provincial Key Laboratory of Arid Land Crop Science, Gansu Agricultural University, Lanzhou 730070,Gansu,China;
3. Gansu Wengfu Chemical Engineering Co. Ltd, Jinchang 737100,Gansu,China

Received:2014-07-24 Revised:2014-11-13 Published:2016-05-15 Online:2016-05-31

摘要/Abstract

摘要： 以靖远(A)、瓜州(B)、金昌(C)和新疆(D)4个区域盐渍化土壤为对象,采用水平土柱入渗法,探讨磷石膏盐碱土改良剂不同用量(0、6 000、12 000 kg·hm^-2)对湿润峰移动平均速率和土壤水分扩散率的影响。结果表明:不同用量磷石膏盐碱土改良剂对4种盐渍化土壤水分扩散率影响不同。对于A、B、D 3个区域盐渍化土壤,改良剂用量为6 000 kg·hm^-2以下时,对土壤水分传输潜在能力有促进作用;当改良剂用量超过6 000 kg·hm^-2时,改良剂对土壤水分传输潜在能力有抑制作用。而对于C区域盐渍化土壤,随着改良剂用量的增加,对水分传输潜在能力有明显的促进作用,这说明改良剂对C区域盐渍化土壤作用效果明显。

关键词: 磷石膏改良剂, 盐碱土, 水平土柱入渗法, 水分扩散率

Abstract: The object of the study was the salinized soils in four areas (Jinchang, Jingyuan, Guazhou and Xinjiang), the effect of different applied amounts of phosphate gypsum agent (0, 6 000, 12 000 kg·hm^-2) on soil moisture diffusivity was studied by the method of infiltration of horizontal soil column. The result showed that the effect of different applied amounts of ameliorant on soil moisture diffusivity in 4 areas was different. When the applied amount was below 6 000 kg·hm^-2, the phosphate gypsum agent accelerated the velocity of soil moisture movement; but when the applied amount was excessed 6 000 kg·hm^-2, the phosphate gypsum agent suppressed the velocity of soil moisture movement in the sample A, B and D. The velocity of soil moisture movement was obviously increased with the increase of applied amounts of ameliorant for the sample C, which revealed that the effect of ameliorant for the sample C was much better than that for the sample A, B and D.

Key words: phosphate gypsum agent, saline-alkali soil, infiltration of horizontal soil column, soil moisture diffusivity

曹诗瑜, 郭全恩, 车宗贤, 高源, 葛洪俊. 磷石膏改良剂对土壤水分扩散率的影响[J]. 干旱区研究, 2016, 33(3): 506-510.

CAO Shi-yu, GUO Quan-en, CHE Zong-xian, GAO Yuan, GE Hong-jun. Effects of Phosphate Gypsum Agent on Soil Moisture Diffusivity[J]. Arid Zone Research, 2016, 33(3): 506-510.

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磷石膏改良剂对土壤水分扩散率的影响

Effects of Phosphate Gypsum Agent on Soil Moisture Diffusivity

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