酒泉市边湾农场盐碱化土壤的脱硫石膏改良机理研究

doi:10.14088/j.cnki.issn0439-8114.2019.01.011

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (1): 49-52.doi: 10.14088/j.cnki.issn0439-8114.2019.01.011

酒泉市边湾农场盐碱化土壤的脱硫石膏改良机理研究

隽伟超, 张松林, 段凯祥, 骆艳

西北师范大学地理与环境科学学院,兰州 730070

收稿日期:2018-07-16 出版日期:2019-01-10 发布日期:2019-11-26
通讯作者: 张松林（1965-）,男,山东青岛人,教授,主要从事环境化学和固废处理研究,（电子信箱）52203651@qq.com。
作者简介:隽伟超（1992-）,男,陕西西安人,在读硕士研究生,研究方向为环境化学与盐碱地改良,（电话）18966730861（电子信箱）499641433@qq.com;

Study on Improvement Mechanism of Desulphurization Gypsum for Saline-Alkali Soil in Bianwan Farm,Jiuquan City

JUAN Wei-chao, ZHANG Song-lin, DUAN Kai-xiang, LUO Yan

College of Geography and Environmental Science,Northwest Normal University,Lanzhou 730070,China

Received:2018-07-16 Online:2019-01-10 Published:2019-11-26

摘要/Abstract

摘要： 甘肃省酒泉市边湾农场土壤盐碱化严重,致使农业生产无法进行,因此采用脱硫石膏对采自边湾农场耕作层的土样进行改良试验,以评估其对边湾农场盐碱土改良的可行性。结果表明,与对照相比,施用脱硫石膏处理组（11 250~45 000 kg/hm²）的土壤pH、碱化度、总碱度和钠吸附比均显著降低,分别下降了11.38%~12.61%、20.07%~48.40%、4.81%~8.35%、5.5%~22.92%;土壤中Na⁺、Cl^-、K⁺和Mg²⁺含量分别降低了16.78%~29.33%、25.44%~46.77%、4.93%~10.05%、6.61%~17.72%,土壤中Ca²⁺和SO₄^2-含量分别增加了12.91%~43.46%、5.77%~40.77%,表明试验土样的盐碱化程度降低。可见,试验方案对改良边湾农场盐碱化土壤有较好的效果,综合考虑,脱硫石膏施用量为33 750 kg/hm²时改良效果最优。

关键词: 盐碱地, 脱硫石膏, 改良效果, 边湾农场

Abstract: The salinization degree of soil in Bianwan farm, Jiuquan city, Gansu province, is so seriously that makes the agricultural production impossible. Therefore, the desulfuration gypsum was adopted to improve the soil samples from the tilling layer of Bianwan farm in order to evaluate its feasibility for improvement of saline-alkali soil. The results showed that, compared with the control group, the pH value, the degree of soil alkalization, total alkalinity and sodium adsorption ratio of the desulfurization gypsum treatment groups（11 250~45 000 kg/hm²） were significantly decreased, fell by 11.38% to 12.61%, 20.07% to 48.40%, 4.81% to 8.35%,and 8.35% to 22.92%, respectively; the content of Na⁺,Cl^-,K⁺ and Mg²⁺ decreased by 16.78% to 29.33%, 25.44% to 46.77%, 4.93% to 10.05%, and 6.61% to 17.72%, respectively, and that of Ca²⁺ and SO₄^2- increased by 12.91% to 43.46%, 5.77% to 40.77%. Thus, these phenomenons indicated an obvious decrease in salinity of the tested soil samples. So, the test scheme was good for the improvement of saline soil from Bianwan farm, and the optimal amount of desulfurization gypsum was 33 750 kg/hm².

Key words: saline-alkali soil, desulfuration gypsum, improvement effect, Bianwan farm

中图分类号:

S156.4

隽伟超, 张松林, 段凯祥, 骆艳. 酒泉市边湾农场盐碱化土壤的脱硫石膏改良机理研究[J]. 湖北农业科学, 2019, 58(1): 49-52.

JUAN Wei-chao, ZHANG Song-lin, DUAN Kai-xiang, LUO Yan. Study on Improvement Mechanism of Desulphurization Gypsum for Saline-Alkali Soil in Bianwan Farm,Jiuquan City[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(1): 49-52.

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酒泉市边湾农场盐碱化土壤的脱硫石膏改良机理研究

Study on Improvement Mechanism of Desulphurization Gypsum for Saline-Alkali Soil in Bianwan Farm,Jiuquan City

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