我国的盐碱地分布十分广泛。利用工程治碱固然是一条治理盐碱地的可行途径,但投资较大,并非轻而易举之事。而生物治碱则往往能获得更好的效果,因而它在世界上也越来越受到重视。所谓生物治碱,就是在碱盐地里大面积种植在生长过程中能消耗盐碱的植物,从而从土地中吸走大量的盐碱,达到改良土壤的目的。能治理盐碱的植物有红柳、向日葵、盐蒿(碱葱)等。红柳生长速度缓慢,平均年生长高度仅0.15 The distribution of saline land in our country is very extensive. Alkaline treatment using the project is certainly a viable way to treat saline land, but a larger investment is not a breeze. Biological Alkali treatment can often get better results, so it is more and more attention in the world. The so-called biological treatment of alkali, that is, in a large area of ​​alkali salt in the growth process of planting plants that can consume salt, so as to suck a lot of saline from the land, to achieve the purpose of improving the soil. Salt and alkali plants can handle red willow, sunflower, salt Artemisia (alkaline onion) and so on. Tamarisk grows slowly, with an average annual growth of only 0.15