Prosopis species is a multipurpose N-fixing leguminous tree that grows naturally in semi-arid and arid environments. These trees are reported to ameliorate and rehabilitate salt-affected soils through its diverse inputs and tolerance to high salinity. However, scanty and scattered information is available on reclamation capacity and soil ecology transformations of different Prosopis spp. under different soil depths. The first aim of this study was to examine changes in soil properties under different Prosopis spp. (of 12 years old plantations) at the research farm, ICAR-Central Soil Salinity Research Institute, Karnal, Haryana, India. The second aim was to determine the most influential soil properties that accounted for the most variation in the Prosopis spp. plantation. The results indicated that irrespective of different Prosopis spp. Plantation, soil pH, electrical conductivity (EC), bulk density, the concentration of Na⁺, HCO₃⁻ and CO₃⁻ decreased significantly whereas, mineral N (NO₃^––N and NH₄⁺–N), soil organic C (SOC), soil carbon stock, microbial biomass C (MB-C) and the concentration of K⁺ increased significantly. The highest reduction in EC value was noticed under P. juliflora (64.5%) followed by P. chilensis (61.5%) and P. articulata (59.8%) as compared to the control (barren land). Prosopis juliflora increased the MB-C, averaged across the soil depth by 14.8% and 27.5% over P. alba and P. articulata, respectively. MB-C averaged across the Prosopis spp. decreased with increased soil depth and remarkable influence was observed up to 75 cm of soil depth. The magnitude of increase in SOC content and soil carbon stock was higher under P. alba followed by P. juliflora than rest of the Prosopis spp. in the surface (0–15 cm) than sub-soil (15–105 cm) layers. With the predicted increase in area under salt-affected soils due to climate change and anthropogenic reasons, it is crucial to develop the management practices and technologies particularly bio-amelioration which will not only reclaim salt-affected soils but also increase the carbon content to restore the fertility of these soils.

Prosopis种是多用途的固氮豆科树，在半干旱和干旱的环境中自然生长。据报道，这些树木通过其多样化的投入和对高盐分的耐受性，改善了盐碱化的土壤。然而，关于不同Prosopis spp的复垦能力和土壤生态转化的信息很少，而且分散。在不同的土壤深度下 这项研究的第一个目的是研究不同种类的Prosopis spp下土壤性质的变化。（拥有12年历史的人工林）在印度哈里亚纳邦卡纳尔市ICAR中央土壤盐分研究所的研究农场中。第二个目的是确定造成影响最大的Prosopis spp的土壤性质。种植园。结果表明，与Prosopis spp不同。种植园，土壤pH值，电导率（EC），堆积密度，钠的浓度⁺，HCO ₃ ^-和CO ₃ ^-显著减少，而，矿物N（NO ₃ ^- -N和NH ₄ ⁺-N），土壤有机碳（SOC），土壤碳股票，微生物生物量C（MB-C）和K的浓度⁺显著增加。与对照（贫瘠的土地）相比，在P. juliflora（64.5％），C。chilensis（61.5％）和P. articulata（59.8％）之后，EC值下降幅度最大。牧豆树增加了MB-C，14.8％和27.5％跨过土壤深度平均银白杨和P. articulata，分别。MB-C在Prosopis spp上平均。随土层深度的增加而减小，在土层深度达75 cm处观察到显着影响。在P. alba之后其次是P. juliflora下，SOC含量和土壤碳库的增加幅度均高于其余Prosopis spp 。表层（0–15厘米）比地下土壤（15–105厘米）更厚。预计由于气候变化和人为原因，盐分土壤下的面积将增加，因此开发管理实践和技术尤其是生物改良至关重要，这不仅会恢复盐分土壤，而且还会增加碳含量以恢复这些土壤的肥力。