长三角滨海城镇园林绿化植物耐盐性试验研究

Research on Salt-tolerant Ability of Plants in Garden Landscaping of Coast Town in the Yangtze River Delta

通过132种供试植物分别在盐池盆栽、盐渍土原土盆栽和大规模田间实验中耐盐研究,得出:其中耐盐能力水平I级(土壤含盐量≥5‰)的植物有14种、耐盐能力水平II级(3‰≤土壤含盐量<5‰)的植物有34种、耐盐能力水平III级(1‰≤土壤含盐量<3‰)的植物有62种、耐盐能力水平IV级(土壤含盐量<1‰)的植物有22种。这一结果不仅丰富了长三角滨海城镇园林绿化的植物种类,更重要的是提高了植物种类与土壤盐度的适配性。

The salt-tolerant ability of 132 species tested by different methods including potted plants threatened by salt solution,salt soil and plants dressed directly in large salt field were researched in this article.The result indicated that there are 14 species in level I（soil content≥5‰） of salt-tolerant ability,34 species in level II（3‰≤soil content5‰） of salt-tolerant ability,62 species in level III（1‰≤soil content3‰） of salt-tolerant ability,22 species in level IV（soil content1‰） of salt-tolerant ability.This result was not only affluent in plant species of garden landscaping of coast town in the Yangtze River Delta,but also improved adaptive degree between plants and soil salt content.