STUDY ON SOIL SUITABILITY AND EVALUATION FOR ECONOMIC USEFUL PLANT IN THE SOUTH
介绍了中国南方经济作物土壤适宜性评价的研究内容，包括三类九级评价体系和标准框架，并提出了改善限制因素的方法，对推动特色农业发展有参考价值。
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.