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首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >Controlling rainfall-induced soil loss from small experimental plots through inoculation of bacteria and cyanobacteria
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Controlling rainfall-induced soil loss from small experimental plots through inoculation of bacteria and cyanobacteria

机译：通过接种细菌和蓝杆菌来控制从小实验局部的降雨诱导的土壤损失

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摘要

Soil erosion is a major limitation for achieving sustainable development. Controlling soil detachment in initial stage of soil erosion induced by rainfall is necessary. Several organic and inorganic amendments have been used to reduce rainfall-induced erosion. Meanwhile, the impact of soil microorganisms has been approved on improving soil aggregation by previous studies. However, studying the feasibility of inoculation of soil microorganisms to reduce soil loss by rainfall-induced erosion has not been considered yet. Hence, the present study was planned to investigate the controllability of soil loss induced by rainfall-induced through the inoculation of bacteria and cyanobacteria into a study soil. Soil samples were collected from an erosion-prone area from which suitable existing bacteria and cyanobacteria for soil and water conservation were selected, purified and proliferated. The bacteria and cyanobacteria were then inoculated into 24 small 025 m(2) plots in individual and/or combined treatments at three time spans of 15, 30 and 60 days. The results illustrated a significant decrease in soil loss from treated plots (p < 0.01). Moreover, the highest effectiveness was observed in the cyanobacteria and the combined treatments at the end of the 60 days-period (p < 0.01) with respective reduction rate of 99 and 98% in soil loss. Based on the study results, the use of microorganisms, particularly direct inoculation of bacteria and cyanobacteria can be supposed as a new step, biologic, sustainable, environmentally-friend and economically-effective technique for soil conservation. (C) 2017 Published by Elsevier B.V.
机译：土壤侵蚀是实现可持续发展的主要限制。需要控制降雨诱导的土壤侵蚀初始阶段的土壤脱离。已经使用了几种有机和无机修正案来减少降雨引起的侵蚀。同时，土壤微生物的影响已被批准，以改善以前研究的土壤聚集。然而，研究了土壤微生物接种的可行性，以降低降雨诱导的侵蚀土壤损失尚未考虑。因此，计划研究通过将细菌和蓝藻接种到研究土壤中降雨引起的降雨引起的土壤流失的可控性。从易腐蚀地区收集土壤样品，从中选择了合适的现有细菌和用于水土保持的蓝细菌，纯化和增殖。然后将细菌和青霉菌接种到单独的和/或组合治疗中的24个小025m（2）个地块中，在15,30天和60天的三次跨度。结果说明了从处理过的地块中的土壤损失显着降低（P <0.01）。此外，在半月形细菌和60天 - 时期结束时（P <0.01）的组合处理中观察到最高有效性，其降低率为99和98％的土壤损失。基于研究结果，使用微生物，特别是直接接种细菌和蓝藻可以被认为是一种新的步骤，生物学，可持续，环保和经济学有效的土壤保护技术。 （c）2017年由Elsevier B.V发布。

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