Conductive Capability and Its Influential Factors for Vegetable Soil with Different Planting Years in Tianjin City

Authors CAI Yan-ming; WO Fei; FANG Kun; LIU Feng-zhi

Journal Journal of Irrigation and Drainage , 2009,6:28

Abstract In this research,four kinds of vegetable soil in Tianjin vegetable base with different planting years,which including abandoned land,above 5 years,above 10 years,above 15 years,were compared and analyzed.Results showed that soil bulk density and soil porosity are principle factors in soil properties variation.As the increasing of vegetable planting years,soil bulk density and organic matter content were raise obviously.On the contrary,soil porosity and micro-aggregates were losing slightly.The undisturbed soil saturated hydraulic conductivity was between 58.72*10~(-4) and 86.65*10~(-4) cm/s.And the disturbed soil saturated hydraulic conductivity was between 0.57*10~(-4) and 2.07*10~(-4) cm/s.As increasing of vegetable planting years,the conductive capability of vegetable soil was worse.These results can provide references for water reasonable using and soil improving of long-term vegetable planting areas.