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一、前言 盐碱土绿化一直是世界难题,而我国便有5.2亿亩盐碱地分布在23个省、市、自治区。100多座城市地处盐碱区,北方城市多为微碱性土。在某种意义上说,盐碱地是一种患了“癌症”的土壤。盐碱地绿化过去曾经是“绿色的禁区”,古今往来多少学者,在这里寻梦。地处华北大平原的德州市分布着400万亩盐碱地,“春天白茫茫,夏天水汪汪,种树树不活,种草草不长”。一到春天。绿化的人们便种下了一行行行道树,结果是“一年青,二
I. Foreword Saline-alkaline soil afforestation has always been a worldwide problem, while China has 52 million mu of saline land distributed in 23 provinces, municipalities and autonomous regions. More than 100 cities are located in the saline-alkali zone, mostly in the northern city of slightly alkaline soil. In a sense, saline is a soil that has “cancer.” In the past, the greening of the saline-alkali land used to be the “green restricted area”. Many scholars from ancient to modern times had their dreams here. Located in the Great Plains of North China, the distribution of 4000000 acres of saline land, “the vast expanse of spring, the summer water bark, planting trees not live, the grass is not long.” One to spring. Greenery people planted a row of tree trees, the result is "a young man, two