TY - JOUR
T1 - Geotextile covering
T2 - Potential technique for farmland salinization control
AU - Xu, Zunqiu
AU - Mao, Xiaomin
AU - Adeloye, Adebayo J.
AU - Hu, Kejia
AU - Zhu, Ying
AU - Ma, Xiaowen
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (51790535, 51861125103) and National Innovation Training Program for College Students of China Agricultural University. The authors want to thank the Center for Agricultural Water Research in China for providing the test site. Thanks also go to Mayiremu and Hui L, for their help in conducting the experiments and Lichun Zhang and Chen Qi, for English editing.
Publisher Copyright:
© 2021 John Wiley & Sons, Ltd.
PY - 2021/5/15
Y1 - 2021/5/15
N2 - This paper investigated fabric coverings, exploring their ability to remove salt from saline soils. Soil columns filled with saline soil were saturated with saltwater, then covered with four kinds of fabric materials (nylon, cotton, geotextile [150 g m−2], and gauze). The soil columns were heated under infrared lights for 25 days. The microstructural characteristics of the fabric materials before and after the experiments, as well as the crystallization conditions on the soil surface, were examined using scanning electron microscope (SEM). The results demonstrated that both hydrophilicity and structure of fabrics affect salt removal efficiency. Although salt quantity removed by geotextile (111.54 g m−2) was less than gauze (293.89 g m−2), geotextile showed greater potential on salt removal considering long-term evaporation. To further investigate the performance of geotextile material on salt removal, the experiment was repeated with commercially available geotextiles with areal densities of 200, 300, 400, and 500 g m−2. The 500 g m−2 geotextile could remove 368.15 g m−2 of salt, much more than salt removed with geotextiles of density 150, 200, 300, and 400 g m−2 (111.54, 61.57, 102.05, and 102.34 g m−2, respectively), which further proved that fabric structure had great influence on salt removal. These results demonstrated that geotextile covering with optimized fabric structure could be a promising and environmentally friendly technique for farmland salinization control.
AB - This paper investigated fabric coverings, exploring their ability to remove salt from saline soils. Soil columns filled with saline soil were saturated with saltwater, then covered with four kinds of fabric materials (nylon, cotton, geotextile [150 g m−2], and gauze). The soil columns were heated under infrared lights for 25 days. The microstructural characteristics of the fabric materials before and after the experiments, as well as the crystallization conditions on the soil surface, were examined using scanning electron microscope (SEM). The results demonstrated that both hydrophilicity and structure of fabrics affect salt removal efficiency. Although salt quantity removed by geotextile (111.54 g m−2) was less than gauze (293.89 g m−2), geotextile showed greater potential on salt removal considering long-term evaporation. To further investigate the performance of geotextile material on salt removal, the experiment was repeated with commercially available geotextiles with areal densities of 200, 300, 400, and 500 g m−2. The 500 g m−2 geotextile could remove 368.15 g m−2 of salt, much more than salt removed with geotextiles of density 150, 200, 300, and 400 g m−2 (111.54, 61.57, 102.05, and 102.34 g m−2, respectively), which further proved that fabric structure had great influence on salt removal. These results demonstrated that geotextile covering with optimized fabric structure could be a promising and environmentally friendly technique for farmland salinization control.
KW - fabric coverings
KW - saline soils
KW - salt removal
KW - SEM, environmentally friendly
UR - http://www.scopus.com/inward/record.url?scp=85102452573&partnerID=8YFLogxK
U2 - 10.1002/ldr.3905
DO - 10.1002/ldr.3905
M3 - Article
AN - SCOPUS:85102452573
SN - 1085-3278
VL - 32
SP - 2493
EP - 2508
JO - Land Degradation and Development
JF - Land Degradation and Development
IS - 8
ER -