By obsorbing water amountly and biological desalination, alfalfa can decline the ground water level,improve salinized soil,reduce the runoff of water and soil,it also can decrease the pests and weeds.

• 苜蓿通过生物脱盐和大量吸水可降低地下水位,改良盐渍化土壤,减少地表径流量和土壤冲刷量,减轻农作物病虫草害。