Ecogeochemical dosing model and adaptability regionalization of Jingdong chestnut

Abstract：Jingdong chestnut is one of the advantageous agricultural products in Hebei Province; nevertheless, chestnut planting and planning lack theoretical foundation due to insufficient research on geological-geochemical environment for chestnut growth. Based on 75 samples collected from the high-quality production area of chestnut, this paper systematically discusses the temperature, topography, rock soil type and some factors controlling and affecting the high-quality chestnut. On such a basis, the authors established the ecogeochemical dosing model of Jingdong chestnut and classified chestnut planting areas into three kinds, i.e., qualified areas, suitable areas and unsuitable areas. The results obtained will provide theoretical basis and reference for local chestnut planting and planning.