<正>采用微波技术对松材线虫病疫木板材进行除害处理并获得成功。通过对相关技术指标的测试，计算出松材线虫（Bursaphelenchus xylophilus（Steiner & Buhrer）Nickle）和松褐天牛（Monochamus altermatus Hope）致死临界温度及不同厚度、湿度板材的有效处理时间。该项处理技术能够100%杀死松材线虫病疫木板材内松褐天牛和松材线虫，符合国家对松材线虫病疫木安全利用的要求。经安全性和稳定性测试，微波泄漏量低于国家标准，微波输出功率稳定，输送系统运转正常。该项处理技术高效快捷、安全可靠，对环境友好、先进适用，可用于一定厚度板材的检疫除害处理。

Diversity of aquatic vascular plants in Anhui province was investigated based on the field survey and literatures. The results showed that there were 142 species, 6 varieties, and 3 subspecies belonging to 76 genera and 41 families. They could he divided into four life forms, of which the emergent plants shared the highest proportion (56. 7%) and the floating plants shared the lowest (7. 3%). The aquatic vegetation could be classified into 18 major types of association. The threatened status of the aquatic vascular plants’ diversity was described. Some suggestions of restoration and conservation for the diversity were put forward.