Agroclimatic Classification of Sloping Lands in Shikoku Districts for Vegetable Cultivation

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  • MAKI Taichi
    Laboratory of Crop Location, Land Utilization Division, Shikoku National Agricultural Experiment Station
  • TAMAKI Iwahiko
    Laboratory of Crop Location, Land Utilization Division, Shikoku National Agricultural Experiment Station Present address: Chuou, Iyomishima, Ehime

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Other Title
  • 気象指標からみた四国傾斜地における野菜栽培の立地配置
  • キショウ シヒョウ カラ ミタ シコク ケイシャチ ニ オケル ヤサイ サイバ

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Description

The criteria or indices based on the climatic and land conditions were obtained for vegetable cultivation. The indices were used to evaluate the culture type fit to a sloping land or mountainous area in Shikoku districts.<br>The results were expressed on the classification maps with respect to the climatic and land conditions, i. e., (i) air temperature; the monthly and annual means of air temperature, cropping type of vegetables, marginal high temperature of monthly mean air temperature in August for vegetables, and high or semi-high altitude cool regions, (ii) precipitation; the monthly and annual means of precipitation and the amount of precipitation in August, and (iii) the inclination angle and soil properties of a concerned area.<br>The principal indices were represented on the 1/300000 scale classification map and an example with its explanatory noses was shown in Fig. 4.<br>The investigation reveals that the results are reasonable and these indices can be utilized as a criterion to determine cropping types of vegetables. It is possible to cultivate various vegetables rationally where the proper location and arrangement of vegetables are carried out according to these indices, i. e., a suitable selection of vegetable varieties and a cropping season or cropping type at a sloping land in Shikoku districts.

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