湖南省柑桔种植面积230万亩,面积及其产量均居全国第二位;茶叶种植面积210万亩,居全国第一,产量居全国第二。70％以上的柑桔、茶叶等经济作物种植在5°～25°的山丘坡地上。喷微灌技术对于湖南山丘区经济作物基地的增产增收起着决定性的作用。 1985年以来,湖南省喷灌建设发生了重大转变,使之符合于改革新时期的发展形 Hunan Province, 230,000 mu of citrus acreage, area and output rank second in the country; tea planting area of ​​210 mu, ranking first in the country, the output ranks second in the country. More than 70% of citrus, tea and other cash crops are planted on hill slopes of 5 ° ~ 25 °. Spray-micro-irrigation technique has played a decisive role in the increase of output and income of economic crop base in hill area in Hunan. Since 1985, significant changes have taken place in sprinkler irrigation construction in Hunan Province, making it in line with the development of the new era of reform