ANALYSIS ON EVALUATION SCALE AND METHOD OF CROP PLANTING SUITABILITY
To provide basic information and reference for the research direction and trend of crop planting suitability through dynamic analysis. Based on the literature review research method,this paper obtained the research trends in the field of crop planting suitability through literature review,research and analysis,and summarized the related research in the field of crop planting suitability. The results showed that:(1) The research fields of crop planting suitability could be roughly divided into the spatio-temporal scale of crop planting suitability evaluation,crop planting suitability research methods,sensitivity and uncertainty analysis in crop planting suitability research and result verification. (2) In terms of scale research,the research objects of crop planting suitability showed a trend of gradual refinement,from the land type level to the crop type level,and even the crop variety level;the space-time units of evaluation were gradually refined,the space cells were refined from tens of kilometers and thousands of meters to tens of meters,and the time evaluation scale was refined from growth periods and months to days and even hours. (3) Crop planting suitability research methods:Crop planting suitability evaluation indicators were increasingly abundant,and evaluation methods were gradually developed from linear methods to nonlinear methods,among which artificial intelligence and other methods became new research hotspots and directions. Therefore,conclusion crop planting suitability analysis needs to be further refined to the variety level,and the identification of varieties is an obstacle to in-depth research on crop planting suitability. The matching relationship between crop suitable varieties and geographical factors needs to be explored. The research on the main factors leading to the spatial differences of crop planting suitability values,namely the sensitivity analysis of influencing factors,is helpful to understand the causes of spatial differences of suitability. It has theoretical and practical significance for improving crop planting environment artificially.
crop planting suitabilityscaling problemslinear and nonlinear methodssensitivity and uncertainty analysiscrop varieties