AI Article Synopsis
- Desertification and wastewater discharge are critical global challenges that impact the sustainable use of natural resources.
- The study found that using municipal wastewater to cultivate the cyanobacterium Scytonema javanicum initiated the formation of artificial biocrusts in dryland areas, showing promising nutrient retention and photosynthetic activity.
- The low ecological risk associated with this method indicates its potential for improving soil stability while recycling wastewater, marking an important advancement in sustainable resource management.
Article Abstract
Desertification and wastewater discharge are two global issues that severely threaten the sustainable use of available natural resources. This study aimed to explore the potential for transferring nutrients from municipal wastewater to drylands by inducing artificial biocrusts through the inoculation of wastewater-cultured Scytonema javanicum onto the sand surface in Gurbantunggut Desert. The results demonstrated that wastewater cultured S. javanicum effectively induced artificial biocrusts, achieving high photosynthetic biomass and nutrient accumulation (Chl-a, AP and OC) comparable to those induced by S. javanicum cultured in synthetic medium. In addition, the risk index (RI) value of 124.32 suggested a low ecological risk using wastewater cultured S. javanicum to induce artificial biocrusts. This study substantiates the feasibility of using municipal wastewater-cultured cyanobacteria to induce artificial biocrusts, thereby providing a dual benefit: enhancing soil stability in drylands and utilizing wastewater as a resource, thus presenting a significant stride towards the sustainable management of natural resources.
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| http://dx.doi.org/10.1016/j.scitotenv.2024.177049 | DOI Listing |
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