Abstract: According to the main types of resource combinations on wetland plain of Dongting lakeside,several eco-logical engineerings including lakeside reed-forest,lowland rice-fish-ramie,rnanure-forage-fuel,fish-pig-duck and fish,pig-herbage-methane are designed and practiced, and their technological process-es,structures and functions are also analyzed.These engineerings have been preliminarily popularized andshown great significance in the high benefit and sustainable development of rural economy in lakesideplain.

Key words: Fusarium strains in Section Martiella, molecular marker, ISSR-PCR, genetic diversity.