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由于地理位置、地形、地下水埋深等原因,黄河三角洲土壤盐渍化严重,可利用的土地属于盐碱耕地型中低产田,但作为我国重要的后备耕地资源,其改良利用具有重要的战略意义。目前,对于黄河三角洲盐渍土改良措施主要有暗管排盐、修筑台田、土壤肥力提升、覆盖抑盐、土壤改良剂、咸水及雨水高效利用、耐盐作物筛选及种植等技术,进一步开展水肥盐优化调控、植物耐盐机理及根际土壤耐盐微生物的筛选工作,从而为黄河三角洲盐碱耕地型中低产田改造及利用提供科学依据。
The soil salinization in the Yellow River Delta is serious because of its geographical location, topography and groundwater depth. The available land belongs to low and middle yield fields with saline-alkali soil. However, as an important reserve of reclaimed arable land in China, it has important strategic significance . At present, the improvement measures of saline soil in the Yellow River Delta mainly include the technologies of concealed tube drainage, the construction of platform fields, the improvement of soil fertility, the suppression of salt, the improvement of soil improvers, the efficient utilization of salt water and rainwater, the screening and planting of salt-tolerant crops, To carry out the optimal regulation of water and fertilizer salt, salt tolerance mechanism of plants and rhizosphere soil salt-tolerant microorganisms screening, so as to provide scientific basis for the transformation and utilization of low-yielding saline-alkali cropland in the Yellow River Delta.