ORIGINAL RESEARCH
Study of the Physiological Characteristics of Microcoleus vaginatus Combined with a Polymer Sand-Fixing Material Based on Attapulgite in the Laboratory
Ying Lv 1  
,   Junzhi Yan 2  
,   Xuelu Liu 1  
,   Peng Qi 1  
,   Jun Wu 1  
,   Yingbo Yang 1  
 
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1
College of Resources and Environmental Sciences, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou 730070, Gansu, China
2
School of Engineering and Technology, China University of Geoscience, No. 29 Xueyuan Road, Haidian District, Beijing 100083, Beijing, China
CORRESPONDING AUTHOR
Ying Lv   

College of Resources and Environmental Sciences, Gansu Agricultural University, No. 1 Yingmen village, Anning District, 730070, , Lanzhou, China
Submission date: 2020-02-02
Final revision date: 2020-05-24
Acceptance date: 2020-05-25
Online publication date: 2020-09-07
Publication date: 2020-11-10
 
Pol. J. Environ. Stud. 2021;30(1)
 
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ABSTRACT
Comprehensive sand-fixation technology has potential application prospects for desertification control and restoration. The feasibility of combining biological and chemical sand-fixation technology was explored by studying the growth state and physiological characteristics of Microcoleus vaginatus. Dried Microcoleus vaginatus and a polymer sand-fixation material based on attapulgite modified by 4 M H2SO4 were combined as solids. The ratios of dried Microcoleus vaginatus to the polymer sand-fixation material by mass were 1:1, 1:2, 1:3 and 1:4. The amounts sprayed on the sand surface were 2 mg DW•cm-2, 3 mg DW•cm-2, 4 mg DW•cm-2 and 5 mg DW•cm-2. The results for chlorophyll a content, malondialdehyde content, soluble protein content and soluble sugar content showed that, under certain temperature and light conditions, the optimum environmental factors for the growth of Microcoleus vaginatus were a 1:3 ratio of dried Microcoleus vaginatus to the polymer sand-fixation material and a spraying rate of 3 mg DW•cm-2. The results could provide a theoretical basis for a new sand fixation technology; the method presented here serves as another approach for combating desertification in arid and semiarid areas.
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ISSN:1230-1485