【摘要】 本文探讨了弱碱性土壤井水种稻条件下，土壤盐分及ｐＨ值的变化规律。结果表明：富锦水田试验区弱碱性上壤井水种稻七年，土壤未表现积盐现象；种稻后０～１５厘米土层：ｐＨ值由７．９２～８．３０下降为６．７６～７．４５，ＨＣＯ－３含量及其占溶盐阴离子总量的百分比下降；５０厘米土层土壤代换性Ｎａ＋含量减少，比值变小。当由水田改种旱田后，土壤ｐＨ、代换性Ｎａ＋、比值又回升到旱田水平。更多还原

【Abstract】 Abstract The varying Laws of soil salinity and pH value of weakly alkalin soil in planting paddy riceusing well Water were studied in the paper. The results showed: Soil of weakly alkaline soil in FujinPaddy ace Testing Area didint display salification phenomenon after seven years of planting paddyrice using well water; pH value of 0～15cm layer descended from 7. 92～8. 30 to 6. 76～7. 45 afterplanting paddy rice, meanwhile, HCO-3 content and (K+ +Na+ )/(Ca++4Mg++) ratio decreased. soilpH value, replacing Na+ content and (K+ +Na+ )/(Ca++ +Mg++) ratio rised to the level of originalupland field again after changing paddy field into upland field.更多还原