华南季节性干旱区节水农业技术研究进展与趋势

Progress and prospect of the application of water saving agriculture in seasonal drought in South China

因气候变化引起的季节性干旱已日益成为限制华南地区农业生产的主要因素之一。阐述了华南四省(区)季节性干旱的类型及分布、节水农业技术在华南地区主栽作物上的应用现状,对节水农业技术研究的发展趋势进行探讨,并初步提出了以下重点研究思路:应用集雨补灌技术解决丘陵坡地旱季水源问题;引入半旱式耕作制减少水稻生态耗水,在深入研究作物需水规律的基础上研发农田精准控水技术;设置长期经费支持及政策配套以保障相关研究的连续性,为农田精准控水提供理论基础与决策支持。

Seasonal drought greatly restricts the agricultural production in South China. Based on summarizing the style and distribution of seasonal drought and the application of water saving technology in the main crop, the major objective of this study was to discuss the existed problems and feasible recommendations including the introduction of collecting rainwater for irrigation and regulated deficit irrigation technology, the deep research of water requirement for main crop in South China, the fund support and related policy set to ensure continuous study.