Research Progress of the Effects of Different Land Use Types on Soil Nutrients in China
The domestic researches on the effects of different land use types on soil nutrients were reviewed from the three aspects of research content, research region and research method. Based on different soil type region, geomorphic units, administrative districts, basin and specific regions, the effects of different land use types on a variety of soil nutrients were studied with methods of statistical and melrological analysis, geostatistic analysis and so on. Finally, the problems in the existing studies were summarized, and the future research focus was pointed out from four aspects of content, region, methods and time.