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本省由于季风气候的影响,土壤质地和土壤类型有较明显的地带性。其质地分布由北向南为沙壤、轻壤、中壤、重壤和轻粘壤。水文条件也有较大的差别。现根据六十年代全省主要气象台(站)土壤水文常数普查资料,以田间持水量、凋萎湿度、最大有效含水量(田间持水量减去凋萎湿度)作为指标,对各地农业土壤水分状况进行分区评述。为分析土壤干旱程度,确定灌水时间和灌水定额提供依据。一、农业土壤水文常数分布特点土壤容重大小与土壤性质、结构、耕作制
Due to the monsoon climate in the province, soil texture and soil type have obvious zonality. Its texture distribution from north to south for sandy soil, light soil, soil, soil and light clay. Hydrological conditions are also quite different. According to the data of the survey of soil hydrological constants of the main meteorological stations (stations) in the 1960s in the province, taking the field water capacity, wilting humidity and maximum effective water content (field water capacity minus wilting humidity) as indexes, the soil moisture status Zoning reviews. In order to analyze the degree of soil drought and determine the irrigation time and irrigation quota. First, the agricultural soil hydrological characteristics of the distribution of soil bulk density and soil properties, structure, farming system