Several effects on the maintenance of night-E region,such as geocoronal scatter,particle preciapitation,neutral winds and the joule heating of the electrojet current,are discussed.

• 对维持夜间E层的诸种因素,如地冕谐振散射、粒子沉降、中性风引起的等离子体输运以及赤道电激流焦耳加热的作用进行了分析和讨论。