普兰县蔬菜生产现状及发展对策

普兰县地处西藏自治区阿里地区西南，年平均气温为3℃，年日照时数为3640小时．其中5至9月份每日平均日照时长在14小时以上，年平均降水量为156mm。目前制约当地蔬菜产业可持续发展的因素主要有：（1）全年积温少，蔬菜生产受季节制约较大；（2）蔬菜品种单一，结构不合理；（3）蔬菜栽培技术落后，且生产规模小；（4）菜农科技素质制约蔬菜生产新技术的应用。针对这些问题应采取的发展对策为：（1）大力发展设施栽培，推广应用增温增光新技术；（2）增加蔬菜种类，提高设施的周年利用率；（3）加强科技培训，提高农牧民科学技术水平；（4）充分利用普兰地理和生态优势，发展高原特色优质蔬菜。

Production Situation And Development Countermeasure of Vegetable In Burang County

Burang county is located in the southwest Tibet ali region, annual average temperature is 3 ℃ , the annual sunshine hours is 3640 hours, the daily average sunshine hours from May to September is 14 hours, the average annual rainfall is 156 mm. At present, the major factors restricting local sustain- able development of vegetable industry are ： （ 1 ） less accumulated temperature throughout the year, vege- table production is conditioned by season; （2） vegetable varieties are few, and the structure is unreason- able ; （ 3 ） planting technology of vegetables lag behind, and the production scale is small ; （4） farmer＇squality on vegetable science and technology restrained the application of new production technology. The development countermeasures should be taken to solve these problems is： （1） to develop the facility cul- tivation, promote new technologies for warming and lighting; （2） to increase the vegetable species, im- prove the annual utilization rate of establishment; （3） strengthen the education of the science and tech- nology, improve the level of science and technology of farmers and herdsmen ; （4） make full use of plant geography and ecological advantages, develop the characteristic high-quality vegetables of plateau.