Study On The Elaborate Evaluation Of Habitat Suitability For Tangqi Loquat

Loquat is an evergreen fruit tree of Rosaceae.It has a long history of planting.It has high edible value,medicinal value and economic value in fresh fruits,pharmaceuticals and landscape greening.Tangqi loquat,as a high-quality Loquat Variety of national treasure,enjoys a good reputation at home and abroad.In recent years,although the planting area of Tangqi loquat has been expanding continuously,the yield and quality of Tangqi loquat have been affected by the changeable climate.Studying the habitat characteristics of Tangqi loquat and analyzing its habitat Spatial Suitability will help to make a scientific and rational distribution of Tangqi loquat cultivation,improve fruit quality,effectively prevent meteorological disasters,improve climate resources and land use efficiency,so as to achieve the goal of economic development,enrich local farmers and sustainable green development of agriculture.Based on the existing literature at home and abroad,this paper deeply analyzed the eco-environmental characteristics of Tangqi loquat,such as climate,soil and topography,studied the significant climatic variables affecting the growth of Tangqi loquat,determined the suitable range and weight of each influencing factor,realized the spatial fine distributed simulation of Tangqi loquat climate and ecological factors under undulating terrain,and evaluated the habitat of Tangqi loquat in Yuhang District.Suitability,in order to provide theoretical basis for high-quality planting and sustainable development of Tangqi loquat.The main results are as follows:(1)Eco-environmental characteristics of Tangqi loquat: It likes warm climate and humid environment,does not tolerate severe cold,and is suitable for growing in areas with annual average temperature above 15?,annual average rainfall between 1000-1500 mm and sufficient sunshine;It is suitable for growing in acidic soil with deep soil layer,loose soil and rich organic matter;Topographic factors such as elevation,slope orientation and gradient affect Tangqi loquat.The important factor of growth is suitable for planting on gentle slopes and areas with little water accumulation.(2)The significant climatic variables affecting the growth of Tangqi loquat are: Annual precipitation,annual sunshine hours,active accumulated temperature,annual average temperature and average relative humidity in growing season.The determination of significant climatic variables provides a basis for the selection of ecological factors and the determination of weight in the suitability analysis of Tangqi loquat habitat.(3)The spatial fine distributed simulation of the main significant climatic variables(mean temperature,precipitation,illumination time)affecting the growth of Tangqi loquat was realized,which laid a good data foundation for the habitat suitability analysis of Tangqi loquat.(4)Habitat suitability index model was used to evaluate the suitability of Tangqi loquat in Yuhang District.The simulation map of Tangqi loquat planting distribution in Yuhang District was obtained,and the accuracy of the results was verified.The results showed that the suitable areas for planting Tangqi loquat in Yuhang area were mainly in the eastern and central plains,the more suitable areas were mainly in the northwest,South and central,and the northeast also had sporadic distribution,while the unsuitable areas were mainly in the northwest and southern mountainous areas.