|Table of Contents|

Response of Water-soluble Substances in Saline-alkali Wetland

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年7
Page:
67-74
Research Field:
Publishing date:

Info

Title:
Response of Water-soluble Substances in Saline-alkali Wetland
Author(s):
TIAN Yuxin; JIANG Shan; XIE Yuxin; ZHOU Yuqian; LIU Qian
(School of Landseape Architecture，Changchun University，Changchun，Jilin 130022)
Keywords:
reed wetland; freeze and melt interference; fluorescence spectrum; water-soluble organic carbon
PACS:
S 153
DOI:
10.11937/bfyy.20233564
Abstract:
The soil of Chagan Lake wetland in the saline alkali area of Songnen Plain was used as the research material，and the simulation freeze-thaw culture method was used to study the effects of different freeze-thaw temperatures and freeze-thaw cycles on the changes in soil water-soluble organic carbon (WSOC) content and the fluorescence characteristics of water-soluble substances，in order to reveal the response of water-soluble substances in saline alkali wetland soil to freeze-thaw cycles and freeze-thaw temperatures,provide reference for evaluating soil fertility，rational utilization of resources and remediation of soil environment.The results showed that the soil WSOC content in the 0-20 cm soil layer of the wetland was higher than that in the 20-40 cm soil layer.Freezing and thawing interference had a significant impact on the content of water-soluble organic carbon in soil.As the number of freeze-thaw cycles increased，the content of water-soluble organic carbon in soil showed an increasing trend.The interaction between freeze-thaw temperature and the number of freeze-thaw cycles affected the variation of soil water-soluble carbon content.The soil WSOC of different freeze-thaw treatments was composed of humic acid like substances，with the highest content of humic acid found in samples at -25-5 ℃ freeze-thaw temperatures.The freeze-thaw treatment affected the fluorescence intensity of soil water-soluble substances，but did not affect the structural changes of soil water-soluble substances.

References:

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Last Update: 2024-05-10