Ren H R, Tao L, Ren J, Ren X C
School of Environmental and Municipal Engineering. Lanzhou Jiaotong University, 730070 Lanzhou, China.
Gansu Hanxing Environmental Protection Co., Ltd., 730070 Lanzhou, China.
Photosynthetica. 2024 Jun 27;62(2):213-220. doi: 10.32615/ps.2024.020. eCollection 2024.
Desert biocrusts play an important role in the control of desertification and artificial inoculation can promote the formation and development of biocrusts. Physiological and growth responses of biocrusts inoculated on desert surfaces were investigated to assess the effect of mixture ratio, inoculation times, and water supply under laboratory conditions. The application of biological sand-fixing material prepared by cultivated algae crust and polymeric composites in a 1:1 ratio accelerated the most accumulation of chlorophyll in 0.55 mg kg, thickness in 3.06 mm, and fresh mass in 0.69 g cm, was the most beneficial to formation and development of artificial biocrust. The water supply and cultivation time always significantly promoted the growth and accumulation of chlorophyll and biomass under artificial cultivation and inoculation treatments. Artificial inoculation of biological sand-fixing material can lead to the formation of desert biocrust, which provides an engineering application method for desertification control.
沙漠生物结皮在荒漠化防治中发挥着重要作用，人工接种可促进生物结皮的形成与发育。在实验室条件下，研究了接种于沙漠表面的生物结皮的生理和生长响应，以评估混合比例、接种次数和水分供应的影响。以1:1比例制备的培养藻结皮与聚合物复合材料制成的生物固沙材料的应用，使叶绿素积累量最高达到0.55 mg/kg，厚度达到3.06 mm，鲜质量达到0.69 g/cm，对人工生物结皮的形成和发育最为有利。在人工培养和接种处理下，水分供应和培养时间始终显著促进叶绿素和生物量的生长与积累。人工接种生物固沙材料可导致沙漠生物结皮的形成，为荒漠化防治提供了一种工程应用方法。
