宁夏南部山区抗旱应灾农业技术体系的探讨

Discussion on the drought-resistant agro-technological system in south Ningxia

通过分析宁夏南部山区干旱气候规律及其对农业的胁迫效应,指出干旱灾害是宁南农业生产力水平低而不稳的重要原因;加强与气候条件相适应的农业技术的研究和改进,是宁南农业持续稳定发展的重要基础。结合多年来的旱地农业科技攻关研究工作,在对单项农业技术进行组装集成的基础上,建立了包括工程措施、生物措施、农艺措施、化学措施等四大措施紧密结合的宁南山区抗旱应灾农业技术体系,探讨了宁南山区抗旱应灾的主要技术策略。对于广大旱农地区提高农业系统防旱抗旱能力,实现农业高产稳产具有普遍指导意义。

By analyzing the low of arid climate and its stress effects on farming in the mountainous areas of south Ningxia, the paper indicates that drought disasters are the main reason for the low and unstable agroproductivity, and the farming techniques being suitable to the climatic condition should be investigated and improved so as to lay a foundation to the sustainable development of agriculture. In accordance with longterm scientific research of dryland agriculture, by concentrating the single farming techniques, the paper establishes a droughtresistant agrotechnological system that is composed of four categories of measures including engineering, biological, agronomic and chemical measures, and discusses the main technological strategies in south Ningxia. It may provide a general guidance for the vast dry farming regions to withstand the drought disasters and to reach high and stable output in agroproduction.