设施菜地土壤次生盐渍化的成因、危害及其分类与分级标准的研究进展

摘要

As one of the most productive industries, Facility Vegetable Cultivation has developed rapidly in China during the recent three decades. However, the problems, such as the widespread irrational using fertilization, nutrient imbalance, declined fertilizer efficiency, serious resource waste and so on, also resulted in the serious enrichment of soil nutrients and salt accumulation. In this paper, the status, causes, hazards of the second salinization in Chinese facilities vegetable soils were reviewed and analyzed. On this basis we proposed to develop a standard for the classification and grading of soil second salinization and gave a framework of this standard, aiming to provide theoretical guidance and scientific basis for the prevention /control of the second salinization and for the sustainable use of facility vegetable soils.%近30年来,我国设施蔬菜栽培发展迅速,己成为我国农业中最有活力的新兴产业之一。但在长期的设施蔬菜生产过程中,普遍存在着不合理施肥、养分比例失调、肥效下降、资源浪费严重等问题,致使土壤养分富集,盐分积累现象日趋严重。本文对我国设施菜地土壤次生盐渍化的现状、发生原因及其对作物的危害进行综述和分析,在此基础上制定设施菜地土壤次生盐渍化分类与分级的标准的建议及初步构架,旨在为防治设施菜地土壤次生盐渍化,实现设施菜地土壤的质量调控与可持续利用提供理论指导和科学依据。