|Table of Contents|

Effects of FGD-gypsum on the Improvement of Alkaline Soil and Soil Organic Carbon

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年17
Page:
84-92
Research Field:
Publishing date:

Info

Title:
Effects of FGD-gypsum on the Improvement of Alkaline Soil and Soil Organic Carbon
Author(s):
XIA Xinyue1; ZHAO Qiancheng1; SUN Fuxin2; SUN Yanxin1; ZHANG Jun1; ZHANG Fenghua1
(1.College of Agricultural，Shihezi University，Shihezi，Xinjiang 832003;2.Jiangsu Guoxin Xielian Biotechnology Co.Ltd.，Yixing，Jiangsu 214200)
Keywords:
salt and alkali; FGD-gypsum; soil column simulation; functional group; soil organic carbon
PACS:
S 156.4
DOI:
10.11937/bfyy.20240317
Abstract:
Taking Xinjiang′s alkaline soil as the research object，soil pillar test was used，5 FGD-gypsum applied levels 0，15，30，45，60，60 t·hm-2 (marked as T0，T1，T2，T3，T4) were set，respectively.The application of different FGD-gypsum on 0-40 cm alkali-based soil physical and chemical properties and organic carbon solidaries were studied，in order to provide reference for the improvement of saline-alkali cultivated land quality improvement.The results showed that，the application of FGD-gypsum could effectively reduce the pH (4.3%-23.2%) and the exchangeable sodium ion content (5.7%-92.6%)，and increase the soil organic carbon content (47.5%-72.1%)，and the improvement effect of 0-20 cm soil layer was better than that of 20-40 cm soil layer.When the amount of FGD-gypsum was T3，the contents of 0-20 cm pH and exchangeable sodium in alkalized soil decrease most significantly，by 23.2% and 92.6%，respectively.Compared with T0，soil organic carbon content increased by 47.5%，MAOC and POC content increased by 57.0% and 13.5%，respectively.The infrared spectrum measurement results further showed that adding suitable FGD-gypsum could increase the content of polysaccharides and aromatic compounds in alkalized soil.Correlation analysis showed that pH，EC value and exchangeable sodium content were the factors affecting soil organic carbon and its component content.In conclusion,FGD-gypsum could improve the physical and chemical properties of alkaline soil，promote the accumulation of aliphatic and polysaccharide compounds，and promote the soil organic carbon retention.

References:

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Last Update: 2024-09-24