我国有4亿亩盐碱地,有50余个城市不同程度分布着盐碱地。北方各省多为微碱性土,山东省的东营、德州、滨州、聊城盐碱地较多。这些地区的庭院种树栽花成活率低,受盐碱危害植物难以正常生长,采用常规栽培技术往往造成失败。根据德州市的经验,必须采取水土综合改良技术才能取得良好的绿化效 There are 400 million mu of saline-alkali land in our country and more than 50 cities distribute saline-alkali land to varying degrees. Northern provinces are mostly alkaline soil, Shandong Province, Dongying, Texas, Binzhou, Liaocheng more saline land. In these areas, the planting of flowers in the garden is low, and it is difficult for the plants harmed by the salt to grow normally. Conventional cultivation techniques often lead to failure. According to the experience of Dezhou, we must adopt the comprehensive soil and water improvement technology to achieve good greening effect