Degraded drylands have a limited ecosystem functionality and require well-targeted rehabilitation interventions and sustainable land management for improvement. A promising rehabilitation package using mechanized micro-catchment water harvesting, to support the development of out-planted native shrub seedlings, is being introduced in Jordan's Badia. However, the impacts of rehabilitation on the soil microbial communities through the changes in soil physicochemical properties, and microbial potential contribution to soil function and stability are unclear. In the present study, soil microbial properties (abundance, community structure, community composition, diversity, network complexity, and decomposition function) and their relations with selected physicochemical properties (moisture, pH, salinity, and organic matter quantity and quality) were investigated in the micro-catchment water harvesting bunds in comparison with those in untreated interspace areas four years after implementation. At the bunds, fungal and bacterial abundances increased significantly, as did prokaryotic diversity, prokaryotic function to produce decomposing enzymes, and the redundancy of these functions. Furthermore, Burkholderiales (plant growth-promoting bacteria) and Cytophagales (cellulolytic bacteria) increased in the bunds. Enhanced soil moisture, through the rehabilitation, was likely a key for the improvements of the microbiota, including the increases in the abundances of fungi and the specific bacteria (Burkholderiales and Cytophagales), most of the decomposition function, and the functional redundancy. Furthermore, the decrease in salinity due to leaching resultant from the infiltration of collected surface runoff at the bunds likely supported an increase in diversity and parts of the function. The results suggest that the rehabilitation has multiple beneficial impacts on soil microbial communities, which further contribute to long-term ecosystem functionality and stability.

退化的旱地具有有限的生态系统功能，需要有针对性的复原干预措施和可持续的土地管理来进行改善。约旦的巴迪亚引入了一个有希望的恢复计划，该计划使用机械化微集水集水技术来支持外植原生灌木幼苗的生长。但是，通过土壤理化性质的变化以及微生物对土壤功能和稳定性的潜在贡献，恢复对土壤微生物群落的影响尚不清楚。在本研究中，土壤微生物特性（丰度，群落结构，群落组成，多样性，网络复杂性和分解功能）及其与选定理化特性（水分，pH，盐度，实施四年后，对微集水集水沟与未经处理的空间区域进行了比较。在外滩，真菌和细菌的丰度显着增加，原核生物多样性，产生分解酶的原核生物功能以及这些功能的冗余性也显着增加。此外，外滩中的伯克霍尔德氏菌（促进植物生长的细菌）和细胞噬菌体（纤维素分解细菌）增加。通过恢复来提高土壤水分，可能是改善微生物群落的关键，包括增加真菌和特定细菌（伯克霍尔德氏菌和噬菌体）的丰度。），大部分分解功能以及功能冗余。此外，由于外滩上收集的地表径流渗透导致的淋溶导致盐度降低，这可能支持多样性和部分功能的增加。结果表明，修复对土壤微生物群落具有多种有益影响，这进一步有助于长期的生态系统功能和稳定性。