【摘要】 分析了河北省农田用水浪费的主要路径。提出了减少地面蒸发损失和使降水有效利用是未来农业节水的主攻方向。根据研究成果,阐明了农艺节水技术潜力在目前经济用水量基础上还有100mm左右。并针对河北省灌溉农田、旱作农田和设施农田分别提出了深化研究的关键技术。更多还原

【Abstract】 An analysis of wasted ways on agricultural water and trends of amount of available water in agriculture in the future. The directions for agricultural water saving were pointed out that were to reduce evaporation from soil surface and make the wasted precipitation efficacy. The Technical potential of field water saving could be about 100 mm based on the field test results. The key technologies to be studied in the future were put forwarded for irrigated, rainfed and green house field, respectively.更多还原