| 燃煤电厂脱硫石膏改良碱化土壤的施用量 |
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| 引用本文： | 肖国举,罗成科,张峰举,王彬,郑国琦,杨娟,毛桂莲,白海波. 燃煤电厂脱硫石膏改良碱化土壤的施用量[J]. 环境科学研究, 2010, 23(6): 762-767 |
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| 作者姓名： | 肖国举 罗成科 张峰举 王彬 郑国琦 杨娟 毛桂莲 白海波 |
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| 作者单位： | 宁夏大学新技术应用研究开发中心,宁夏,银川,750021;宁夏大学农学院,宁夏,银川,750021;宁夏大学生命科学学院,宁夏,银川,750021 |
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| 基金项目： | 国家十一五科技支撑计划项目 |
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| 摘 要： | 利用燃煤电厂脱硫石膏改良盐碱地对于确保国家粮食安全和生态安全、发展循环经济具有重要意义. 选择具有典型代表性的宁夏西大滩碱化土壤,以降低土壤碱化度和总碱度为目标,采用盆栽试验和土柱模拟试验,确定了改良不同程度碱化土壤脱硫石膏的理论施用量:轻度碱化土壤为12 529.5 kg/hm2,中度碱化土壤为17 256.0 kg/hm2,重度碱化土壤为23 563.5 kg/hm2. 在脱硫石膏改良的碱化土壤上种植油葵的田间试验表明,由盆栽试验和土柱模拟试验得出的脱硫石膏施用量可以作为大田示范推广的参考值.
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| 关 键 词： | 脱硫石膏 施用量 碱化土壤 |
| 收稿时间： | 2009-10-31 |
| 修稿时间： | 2010-01-07 |
Application Amount of Desulfurized Gypsum from Coal Fired Power Plants on Improving the Quality of Alkalized Soil |
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| XIAO Guo-ju,LUO Cheng-ke,ZHANG Feng-ju,WANG Bin,ZHENG Guo-qi,YANG Juan,MAO Gui-lian and BAI Hai-bo. Application Amount of Desulfurized Gypsum from Coal Fired Power Plants on Improving the Quality of Alkalized Soil[J]. Research of Environmental Sciences, 2010, 23(6): 762-767 |
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| Authors: | XIAO Guo-ju LUO Cheng-ke ZHANG Feng-ju WANG Bin ZHENG Guo-qi YANG Juan MAO Gui-lian BAI Hai-bo |
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| Affiliation: | 1.New Technology Research and Development Center, Ningxia University, Yinchuan 750021, China2.College of Agriculture, Ningxia University, Yinchuan 750021, China3.College of Life Science, Ningxia University, Yinchuan 750021, China |
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| Abstract: | In order to protect national grain safety and ecological safety and develop a sustainable economy, it is important to improve alkaline land with desulfurized gypsum from coal fired power plants. Representative lightly alkalized soil, medium-alkalized soil and seriously alkalized soil in Xidatan of Ningxia Province were selected in the research and used in pot and soil column simulation experiments. The goal was to determine the theoretical application amount of desulfurized gypsum to improve alkalized soil of different alkalized degrees, in order to decrease the alkalization degree and total alkali degree of the soil. It was found that the theoretical application amounts of desulfurized gypsum for lightly alkalized soil, medium-alkalized soil and seriously alkalized soil were 12,529.5, 17,256.0 and 23,563.5 kg/hm2, respectively. A field experiment using the improved alkalized soil by desulfurized gypsum to plant oil sunflower seeds verified the application amount of desulfurized gypsum. The conclusions indicate that the application amount of desulfurized gypsum determined by the pot experiment and soil column simulation experiment can be used as the reference for large field demonstration and popularization. |
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| Keywords: | desulfurized gypsum applying amount alkalized soil |
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