21世纪经济与社会正在发生着翻天覆地的变化，西部大开发更是进行得如火如荼。农业在发展中优化结构，提高质量，积极推进农业科技化、产业化、市场化，全面实现农业现代化，走可持续发展之路，是21世纪我国农业发展的总体目标。显然，这一目标诠释的是比传统农业更具有丰富内 The world economy and society are undergoing earth-shaking changes in the 21st century, and the development of the western region is proceeding in full swing. It is the overall goal of agricultural development in our country in the 21st century that agriculture should optimize its structure and improve its quality in development, and actively promote the sci-techization, industrialization and marketization of agriculture, realize the agricultural modernization in an all-round way and take the sustainable development. Obviously, this goal is interpreted more than traditional agriculture is more rich