关键词: 相对密度, 相对密度

Abstract:

Mulched irrigation, drip irrigation and brackish water irrigation are the most popular water-saving irrigation methods. Mulched drip irrigation of brackish water is a complex system and does threat to soil and plants potentially. Therefore, some detail studies made by the domestic and foreign scholars are about soil water-salt transfer under mulched drip irrigation, the effect of brackish water irrigation and soil water salt transport model under mulched drip irrigation. Meanwhile, the study has got a large number of achievements. However, the quest of the mechanism of interaction between the plants and the soil water salt and the parameters of salt migration and transformation in field scale demands prompt solution. And how to combine soil and water resources in arid regions, establish a secure and efficient adjust and control technology system of water-salt of the soil and irrigation model of drip irrigation under the mulch with brackish water, and regionally promote and apply it, is an urgent need for solving the problem.