CAJ | 학술논문

研究了施用燃煤烟气脱硫废弃物改良盐碱土后对根际土壤和枸杞根系生长的影响。结果表明：利用燃煤烟气脱硫废弃物改良盐碱土，根际土壤pH值由10．51下降到7．71，碱化度由32．3％下降到18．1％，Na＋、K＋、Mg2＋、Cl-和HCO3-离子含量明显降低，而Ca2＋和SO42-离子含量逐渐上升。燃煤烟气脱硫废弃物施用量为2．5t/667m2时，盐碱土壤改良效果最好，枸杞根系生长最旺盛，其根长、根表面积和根干重分别为44．78 cm、179．97 cm2和17．53 g。
연구료시용연매연기탈류폐기물개량염감토후대근제토양화구기근계생장적영향。결과표명：이용연매연기탈류폐기물개량염감토，근제토양pH치유10．51하강도7．71，감화도유32．3％하강도18．1％，Na＋、K＋、Mg2＋、Cl-화HCO3-리자함량명현강저，이Ca2＋화SO42-리자함량축점상승。연매연기탈류폐기물시용량위2．5t/667m2시，염감토양개량효과최호，구기근계생장최왕성，기근장、근표면적화근간중분별위44．78 cm、179．97 cm2화17．53 g。
In order to investigated the amelioration effects of saline -alkali soil with the by-product of flue gas desulphuriza-tion ( FGDG ) .The results showed that: with the applications of FGDG , the rhizosphere soil pH values decreased from 10.51 to 7.82, the exchangeable sodium percentage (ESP) decreased from 32.2%to 18.1%.the rhizosphere soil contents of Na+, K+, Mg2+, Cl-, HCO3 -decreased significantly, the contents of Ca2+and SO42-increased gradually.However, FGDG application amount was 2.5t/667m2 , saline-alkali soil improvement effect is best , and the Wolfberry taproot length was 44.78 cm , root surface area was 179.97 cm2 and root dry weight was 17.53 g.