【摘要】 用人工模拟土柱研究了(土娄)土与河淤土的水势对土壤生化强度的影响。结果表明,在相同含水量下,由于两土壤的水分实际有效性不同,显示出两土壤生化强度的差异。从而认为在相同水势下比较土壤间的生化活性,才能真实地反映土壤水分对土壤生化活性的影响。温度引起的土壤生化强度的变化,在采用水势概念时,还包含着温度对土壤水分有效性的影响。更多还原

【Abstract】 The effect of water potential on the intensity of soil biochemistry under different temperature (10℃～15℃, 30℃～35℃) was studied for Lou soil and Heyu soil with model coumn. The results indicated that under same water content the biochemistry intensity of two soil was different because the actual availability of the water was different for the two soils. According to this result, when same water potential the comparison of biochemistry activity between soils was to reflect really the effect of soil water on soil biochemistry intensity leaded by temperature is to contain the effect of temperature on the availability of soil water when the conception of water potential was applied.更多还原