Ngô Ngọc Hưng, Nguyễn Bảo Vệ (trang 32-37, 48)
Từ khoá: tính chất, phèn, đất phèn, tính chua, cải tạo đất, Đồng bằng sông Cửu Long
Determination of acid sulfate soils ‘s acidification for agriculture development and rural construction in Mekong delta
Disturbance by excavation or drainage of acid sulfate soils (ASS) for flood mitigation can result large areas acidified with significant environmental, social and economic impacts. Field techniques are useful exploratory tools, but are indicative only and definitely not quantitative. Acid and sulfur trails in ASS can be quantified by SPOCAS method, which is relatively quick and simple performance. Acid and sulfur trail of ASS in Mekong delta varied in depth and location. Some good regressions have been found among SPOCAS components. The results from analysis of TPA, TAA and SPOS have provided a basis of liming.