我国农业水资源可持续利用研究进展

农业水资源的可持续利用是农业可持续发展的前提和保障。可持续发展思想在农业水资源利用与农业发展研究领域已有所渗透和体现,已从不同侧面提到了农业水资源可持续利用的协调性本质,但对协调性的量化表征研究有待加强,指标体系是量化表征人地需水关系协调度的良好工具。目前,农业用水估算方法、节水与高效用水等农业水资源可持续利用技术与方法研究较多,但对农业水资源的内涵界定及其可持续利用量化表征、农业用水估算方法、生态需水、外调水、土壤水、"农转非"、农业水资源管理等问题关注不够,有待深入探讨和系统总结。图1,参33。

Advances in studies of sustainable utilization of agricultural water resources

This paper outlines the current status of studies of sustainable utilization of agricultural water resources,which is the precondition of sustainable development of agriculture.Sustainable development ideology has already been studied in the fields of sustainablities of agricultural water resources utilization and agriculture development,and its nature of harmony is mentioned by different ways too.However,it is urgent to study how to measure the harmony or coordination of the relation of water resources demands between human and nature,and sustainability indicators system is approved to be a good measure tool.For the increase of food production and sustainable development of agriculture and region,model building,water-saving techniques and improvement of water use efficiency have been discussed for optimized allocation and sustainable utilization of agricultural water resources.However,it is still some potential reseach focuses to be probed into,i.e.connotation of agricultural water resources,quantification and token of sustainable utilization of agricultural water resources,ecological water demand,water saving,soil water,transferring water out of agriculture,management of agricultural water resources,etc.The discussion of the problems would bear on prospects for a more successful sustainable development strategy.