Method for determining spatial distribution of suitable transplanting period of flue-cured tobacco in complicated hilly area

Abstract

The invention discloses a method for determining the spatial distribution of the suitable transplanting period of flue-cured tobacco in a complicated hilly area. MODIS (Moderate Resolution Imaging Spectroradiometer) remote sensing image data and DEM (Dynamic Effect Model) altitude data are utilized and combined with ground observation data of the tobacco-growing area, a simulation method of the ten-day meteorology of the tobacco-growing area and the spatial and temporal distribution of soil moisture is constructed through mathematical modeling, main meteorological elements and the spatial and temporal distribution of soil moisture are extracted, the suitable meteorological factor and the soil moisture range, required by tobacco transplanting, are combined, and the spatial distribution of the suitable transplanting period of the tobacco-growing area can be determined. The method is simple, can be used conveniently, and can solve the problems that the traditional data based on sparse meteorological stations and less soil sampling points cannot reflect the spatial distribution of the meteorology and the soil moisture of the complicated hilly area easily, and the suitable transplanting period of the different areas of the complicated hilly area cannot be accurately determined.

Description

technical field [0001] The invention belongs to the technical field of tobacco planting, and in particular relates to a method for determining the spatial distribution of flue-cured tobacco suitable for transplanting in complex mountainous areas. Background technique [0002] The quality of tobacco leaves is the core issue of the sustainable development of the tobacco industry, and tobacco is an economic crop that is extremely sensitive to its growth environment, and the growth and development of flue-cured tobacco and the formation of tobacco leaf quality are not only affected by the genetic and cultural factors , but also affected by the ecological environment conditions in tobacco growing areas. A large number of studies have shown that the ecological environment conditions such as climate, soil and topography have a significant impact on the field appearance and growth of tobacco leaves in the field, tobacco leaf yield, output value, chemical composition, aroma substance...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for determining the spatial distribution of flue-cured tobacco suitable for transplanting in complex mountainous areas, aiming to solve the problem that traditional data based on sparse meteorological stations and a small number of soil sampling points are difficult to accurately reflect the spatial distribution pattern of meteorology and soil moisture in complex mountainous areas. It is difficult to meet the problem of accurately determining the most suitable tobacco leaf transplanting period in different areas of complex mountainous areas

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