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Position: Home > Articles > ON THE CHARACTERISTICS OF MOISTURE STATUS OF THE SHAJIANG DARK SOIL IN DISTRICTS NORTH OF HUAI RIVER Acta Pedologica Sinica 1962 (4) 361-373

淮北砂薑土(砂薑黑土)水分性貭的一些特点

作者：

袁从禕;袁一琴

单位：

中国农业科学院江苏分院

摘要：

江苏、安徽两省淮北平原是以旱作为主的农区。平均年降雨量740毫米(据安徽宿县資料),一年中降雨的分布很不均勻,主要集中于7、8两月,在平坦低洼地区就形成积涝,9月以后正是小麦整地播种时期,往往又少雨而形成秋旱。旱涝災害成为当地农业生产

译名：

ON THE CHARACTERISTICS OF MOISTURE STATUS OF THE SHAJIANG DARK SOIL IN DISTRICTS NORTH OF HUAI RIVER

作者：

C. I. YUAN AND I. C. YUAN (Kiangsu Branch, Agricultural Academy of China)

摘要：

Owing to the periodically dry and wet climate in the year, the moisture status of the surface 30 cm. of the Shajiang dark soil occurring in districts north of Huai river is variable. The soil has a water table varying from 110 to 190 cm. throughout the year, and a rather constant moisture content in 30—100 cm. layer.The rate of percolation of the soil is low, about 4.0 mm/min, with an average infiltration of 12.2mm/min. in the first hour. The presence of impermeable plow-pan layer and glied B layer induces the poor drainage condition of the soil profile.The rate of movement of soil water from subsoil to surface 30 cm. is very low, and the surface soil is apt to dry out in dry seasons. In case when the soil moisture drops below 70% of the field capacity, repressing the soil to a more compact state reduce the rate of evaporation and consequently retains more moisture in surface layer.

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淮北砂薑土(砂薑黑土)水分性貭的一些特点

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