文章利用湖北省2015-2016年VLF/LF三维闪电监测定位系统的探测资料,分析了湖北省闪电的总闪、云闪和地闪的 日变化、月变化和密度变化特征.根据分析结果总结了湖北省云闪和地闪主要发生的时间、次数、比例、日变化特征的一致性、空间密度分布的高密度值区 和电流强度的主要分布.分析结果为业务人员预报预警提供了参考.

Based on the lightning location data of the 13 ADTD stations in Hubei Provincefrom 2006 to 2011 ,the temporal-spatial distribution features of lightning frequency,current intensity and polarity in Huanggang were studied. The results indicated that most of lightning were negative lightning, accounting for 97.4% with the mean lightning intensity of 37.59 kA. Positive lightning accounting for only 2.6% with the mean intensity of 43.76 kA. The positive and negative lightning occured clearly with characteristics of daily and monthly variation. Daily variation of lightning frequency clearly showed two peaks at 16:00 and 19:00 in a day. Monthly variation of lightning frequency clearly showed single peak. That from April to September accounted for 94.6% of the whole year and that from June to August accounted for 83.6%; High density lightning area mainly were Huangzhou, Tuanfeng, Xishui and southern Luotian in central Huanggang where the lightning density was greater than 80/25 km2·a . The lightning intensity was mainly concentrated between 10~60 kA which accounted for 89.1%,among which the positive lightning accounted for 75.8%and the negative lightning accounted for 89.5%.

米草属植物是多年生禾本科植物,具有耐盐、耐淹、耐瘠和繁殖力强、根系发达等特点,曾被认为是保滩护堤、促淤造陆的最佳植物[1],因此我国沿海大量引种.