关键词: 伊犁绢蒿荒漠, 伊犁绢蒿荒漠, 土壤种子库, 萌发数量, 增温, 生物量

Abstract: Abstract: Taking exhibition agriculture in Beijing as the object, the paper analyzed internal factors of exhibition agricultural system, and concluded three operating forms of exhibition agriculture according to the interactivity between internal factors, that was a government cultivation form, a promoting characteristic industry form, and a market cultivation form. Then the paper analyzed some problems existing in the operation of exhibition agriculture which were that the number of exhibition is too much to brand effect; and were lack of professional companies of agriculture exhibition；and were lack of professional agricultural associations; and the government leading in agriculture exhibition. In order to accelerate exhibition agriculture in Beijing healthily, the paper proposed to build the operating mechanism that the government emphasized on guide and service, technological innovation became a kind of measure, and unique agriculture industry was origin of force, and professional agricultural exhibition was a driving force, and the operation of the market was the link.