CAJ | 학술논문

　　为了研究江苏淮安地区塑料大棚辣椒连作土壤养分和离子含量变化与酸化的关系，选取不同连作年限的辣椒大棚土壤和相邻露地小麦-辣椒轮作田（对照），测定大棚辣椒不同连作土壤的pH、养分和离子含量，通过相关分析、主成分分析，研究大棚辣椒连作对土壤养分和离子含量的影响及其与连作土壤酸化的关系。结果表明，随着辣椒连作年限增加，土壤pH呈降低趋势，并且均低于对照(CK)；辣椒连作土壤养分和离子含量高于对照土壤，并且土壤有机质、全氮、全磷、有效钾、Cl-、SO42-、NO3-与pH显著相关(P<0.05)；主成分分析表明，连作土壤有机质、全氮、全磷、有效钾、Cl-、NO3-、SO42-影响土壤酸化水平。因此，大棚辣椒连作会引起土壤酸化，而土壤中有机质、全氮、全磷、有效钾和Cl-、SO42-、NO3-积累是引起辣椒连作土壤酸化的主要原因。
　　위료연구강소회안지구소료대붕랄초련작토양양분화리자함량변화여산화적관계，선취불동련작년한적랄초대붕토양화상린로지소맥-랄초륜작전（대조），측정대붕랄초불동련작토양적pH、양분화리자함량，통과상관분석、주성분분석，연구대붕랄초련작대토양양분화리자함량적영향급기여련작토양산화적관계。결과표명，수착랄초련작년한증가，토양pH정강저추세，병차균저우대조(CK)；랄초련작토양양분화리자함량고우대조토양，병차토양유궤질、전담、전린、유효갑、Cl-、SO42-、NO3-여pH현저상관(P<0.05)；주성분분석표명，련작토양유궤질、전담、전린、유효갑、Cl-、NO3-、SO42-영향토양산화수평。인차，대붕랄초련작회인기토양산화，이토양중유궤질、전담、전린、유효갑화Cl-、SO42-、NO3-적루시인기랄초련작토양산화적주요원인。
To study the relationship between soil nutrients, ions and acidification of greenhouse pepper in Huai’an district of Jiangsu Province. Choosing the adjacent open field of wheat-pepper rotation as the reference, the pH, nutrient and ions in different continuous cropping years of pepper greenhouses soil were determined. Effect of continuous cropping years on soil nutrients and ions content, and the relationship between changes of nutrients, ions and soil acidification were studied through the correlation analysis, principal component analysis. Our results showed that with the cropping years increasing, soil pH was decreased and those values in continuous cropping years of pepper greenhouses soils were lower than those of the adjacent open field of wheat-pepper rotation. The contents of soil nutrients and ions in continuous cropping soil of hot pepper were higher than those of control, and the correlation of soil nutrients (organic matter, total N, total P, available K, Cl-, SO42-, NO3-) between pH was significant (P<0.05). Principal component analysis showed that the soil nutrients (organic matter, total N, total P, available K, Cl-, SO42- and NO3-) in continuous cropping soil could affect the acidification level of soil. Therefore, continuous cropping using pepper will cause soil acidification, the accumulation of soil nutrients might be the main reason of the acidification in pepper continuous soil.