Optimizing water management for sustainable use of agricultural lands and water

优化水管理以可持续利用农田和水

• 批准号: RGPIN-2016-06041
• 负责人: SriRanjan, Ramanathan
• 金额: $ 1.75万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636508
• 关键词: Optimizing; water; management; sustainable; use

Irrigation is expanding in Southern Manitoba in areas where salinization from poor quality groundwater has been a major problem. Wherever irrigation water is applied to plants, the plants take up the water and leave behind the salts within the root zone leading to salinization. Drainage systems can be used to remove the excess water applied to wash the salts below the rootzone to mitigate salinization. However, conventional drainage systems may also over-drain the field, removing valuable nutrients and water. Controlled drainage can be used to overcome this shortcoming.

在马尼托巴南部，由于地下水质量差而造成的盐碱化一直是一个主要问题，因此灌溉正在扩大。只要灌溉水被用于植物，植物就会吸收水分，并在根区留下盐分，导致盐碱化。排水系统可以用来去除多余的水，用于冲洗根区以下的盐，以减轻盐碱化。然而，传统的排水系统也可能过度排水，带走宝贵的养分和水分。控制排水可以用来克服这一缺点。