盐碱地应用透气防渗砂高效节水灌溉成效分析

Efficient water saving irrigation effect analysis of applying air permeable impervious sand in saline-alkali land

介绍了天津市盐渍化土壤的分布情况及特征,分析了透气防渗砂的功能与工作原理,论述了透气防渗砂在天津市英南生态种植基地盐碱地开展节水种植试验的情况,包括地形、土壤、气候条件、试验方案、方法和结果。经过两年多的试验及观测,在节水、保植物生长方面,取得了明显成果。

An introduction was made on the distribution and features of soil salinization in Tianjin City. The authors analyze the function and working principle of air permeable impervious sand which was used to conducted water sav- ing planting test at the saline-alkali land of Yingnan ecological planting base in Tianjin City. The tests last for more than two years, showing significant effects of water saving and plant growth protection. The authors also present the landform, soil and climate conditions of planting base as well as the scheme, method and results of the tests.