Taking Lu'an City,a major agricultural area in Dabie Mountains of West Anhui Province,as the research object,the paper collected and sorted out the data of agricultural production structure of Lu'an City from 2000 to 2021 from the statistical yearbook of Anhui Province,identified the main crop types,analyzed the change characteristics of cultivated land area,planting area and crop yield and investigated their potential influencing factors(including nature,economy,society and population).The results showed that:(1)in recent 20 years,the grain crop production has changed gently,still dominated by rice and wheat,while corn yield has increased rapidly,gradually ranking third;(2)although the production of cash crops was mainly vegetable and oil crops,with the continuous decline in the output and planting area of oil crops,the pattern of"vegetable dominance,medicinal materials and tea constantly improving"has gradually taken shape;(3)the structure of regional crop production has gradually changed from"grain crop production"to"paying equal attention to both cash crops and grain crops";(4)the changes of crop production structure in Dabie Mountains area in West Anhui in recent 20 years were mainly influenced by temperature change,drought and flood disaster area,agricultural mechanization level,policy and population factors.The results can provide some theoretical basis for the eco-efficient development of regional agriculture and the formulation of relevant policies in this area.
关键词
皖西大别山区/农作物生产结构/影响因素/种植面积和产量
Key words
Dabie Mountains in West Anhui/crop production structure/influencing factors/planting area and yield
维普
万方数据