黄土高原生态环境与粮食生产潜力开发技术

Ecological Environment and Developmental Techniques of Grain Productivity on the Loess Plateau

在分析黄土高原生态环境特点与“七五”、“八五”黄土高原综合治理中粮食潜力开发技术成果基础上，认为土壤补水期覆盖能显著减少土壤蒸发，开发作物节水潜力的有限灌溉，集雨补灌以及膜上灌水等新技术，有可能成为未来黄土高原粮食生产潜力开发和技术突破口。

Ecolgical environment and some important scientific achievements of comprehensive control on the loess plateau to develop grain productivity in past 10 years were reviewedand analyzed. In order to develop sustainable agriculture, some new techniques were suggested, including mulch in rain season to diminish soil water evaporation, crop limited irrigation, rain water harvest and supplemental irrigation, and irrigation on the film of the mulchcombining with cultivation methods. In the future, these techniques will probably play animportant role in grain production on the loess plateau.