南方经济植物土地适宜性及其评价

中国南方农业自然条件十分优越,经济植物品种繁多,是我国发展多种经营和建设特色经济植物产业的重要基地。湖南省经济地理研究所自1980年代以来,与南方一些有关单位合作,陆续对橡胶、荔枝、龙眼、柑橘、茶叶、油茶、杉木、毛竹、龙须草、香水稻、黄花菜、烤烟、双低油菜、木薯和牧草、药材等近100种南方经济植物的土地适宜性进行了系统研究,对推动南方特色农业的发展有重要意义。文章以这一研究为基础,论述了南方经济植物土地适宜性研究的主要内容,阐明了“三等九级”评价系统及其基本原理,构建了评价指标体系基本框架,指明了限制因素改造的方向。可为我国开展农作物、林木、牧草、药材的土地适宜性评价提供参考。

STUDY ON SOIL SUITABILITY AND EVALUATION FOR ECONOMIC USEFUL PLANT IN THE SOUTH

In the Southern China,there are extremely superior agricultural natural condition and many kinds of economic useful plants.It is the important bases for develop diversified agricultural management and industry of characteristic economic useful plant.Since 1980s,cooperating with some organizations,Hunan Institute of Economic Geography systemically research on soil suitability evaluation for hundreds of economic useful plant in the South,such as rubber plant,lichen,logan,orange,tea,oil tea,fir,phyllostachy,ellipsis binate,fragrant rice,day lily,toasted tobacco,double lowness cole,tapioca,pasture,medicinal preparations and so on.These words have vital significance for impetus characteristic agricultural development in the South.According to the research findings, this paper introduces main contents of study on soil suitability evaluation for economic useful plant in the South.Then it illustrates "three classes and nine grades" evaluation system and construct basis frame of evaluation standards system.Moreover,the way to improve limiting factors is also put forward.In conclusion,the entire above offer a useful references for the soil suitability evaluation about crop,plants,pasture and medicinal preparations in China.