Effect of Power Plant Flue Gas Desulfurization Gypsum on Saturated Hydraulic Conductivity of Heavy Soda-Saline Soil Using Lysismeter
In this paper, we applied soil column simulation method to study the effect of power plant flue gas desulfurization gypsum on saturated hydraulic conductivity of heavy soda-saline soil in the Datong basin of Shanxi Province. The amount of desulfurization gypsum was 15, 30 t·hm-2 and 60 t·hm-2. The r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Agro-Environmental Protection Institute, Ministry of Agriculture
2015-04-01
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| Series: | Journal of Agricultural Resources and Environment |
| Subjects: | |
| Online Access: | http://www.aed.org.cn/nyzyyhjxb/html/2015/2/20150211.htm |
| Summary: | In this paper, we applied soil column simulation method to study the effect of power plant flue gas desulfurization gypsum on saturated hydraulic conductivity of heavy soda-saline soil in the Datong basin of Shanxi Province. The amount of desulfurization gypsum was 15, 30 t·hm-2 and 60 t·hm-2. The results showed that different amount of desulphurization gypsum all could significantly improve the saturated hydraulic conductivity of heavy soda-saline soil; especially, the increase of saturated hydraulic conductivity in different soil layers appeared in a descending order as 0~10 cm>10~20 cm>20~40 cm; further, with the depth of the soil layer the rate and efficiency of saturated hydraulic conductivity reduced gradually. There was no significant correlation between the saturated hydraulic conductivity and the application amount of desulphurization gypsum (P>0.05). Considering the economic perspective, the best application amount of desulphurization gypsum was 30 t·hm-2. |
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| ISSN: | 2095-6819 2095-6819 |