ORIGINAL RESEARCH
Study of the Physiological Characteristics
of Microcoleus vaginatus Combined with
a Polymer Sand-Fixing Material Based on
Attapulgite in the Laboratory
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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
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
Corresponding author
Ying Lv
College of Resources and Environmental Sciences, Gansu Agricultural University, No. 1 Yingmen village, Anning District, 730070, , Lanzhou, China
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.