CAJ | 학술논문

研究了云南不同区域、不同种植年限的大棚设施土壤的盐分累秘特征.结果表明:云南设施土壤耕层盐分含量为0.50～4.22 g/kg,平均为1.76 g/kg;大棚种植年限长的地区,土壤表层盐分含量累积明显;随着大棚种植年限的延长,盐分含量、EC值呈上升趋势;随着土壤层次的加深,盐分含量、EC值逐渐降低;Na离子(交换性Na和可溶性Na)不是导致设施土壤盐害的决定性因素.
연구료운남불동구역、불동충식년한적대붕설시토양적염분루비특정.결과표명:운남설시토양경층염분함량위0.50～4.22 g/kg,평균위1.76 g/kg;대붕충식년한장적지구,토양표층염분함량루적명현;수착대붕충식년한적연장,염분함량、EC치정상승추세;수착토양층차적가심,염분함량、EC치축점강저;Na리자(교환성Na화가용성Na)불시도치설시토양염해적결정성인소.
Greenhouse cultivation has become one of the important cropping systems in Yunnan Province. The accumulation of salt caused by different fertilization may affect soil ecosystem in Greenhouse. This paper investigated salt contents in surface soil horizon in greenhouses from six major areas in Yunnan Province. The results showed that: the mean content of soil salt was 1.76 mg/kg, varied in a range of 0.50- 4.22 mg/kg. Soil salt content and EC value changed obviously in different areas. With the increase of the greenhouse age, salt content and EC values of soil increased. Soil salt accumulated mainly in the top horizon, and decreased gradually with soil depth. Na~+ is not the decisive factor for soil salinization.