CAJ | 학술논문

为了明确重庆烟区土壤速效养分含量的主要影响因子，采用典型相关分析的方法研究了海拔高度、耕层厚度、pH、有机质等对土壤有效养分含量的影响。结果显示，重庆部分烟区土壤酸化严重，速效氮、磷、钾含量丰富，除有效硼、钼和水溶性氯外其他中微量元素含量均为丰富或很丰富。典型相关分析显示，土壤碱解氮、有效铜、有效锌、有效铁、有效硼含量随有机质的增加而增加；土壤速效钾和有效锌含量随海拔升高而增加；土壤pH的降低将导致有效磷、有效铁含量的降低，交换性钙含量的增加；土壤交换性镁等养分含量随耕层厚度的增加而增加。因此，生产上应着重解决土壤酸化、有机质低、耕层浅等问题，并合理布局植烟区域，以提供烟草产质量形成的适宜环境。
위료명학중경연구토양속효양분함량적주요영향인자，채용전형상관분석적방법연구료해발고도、경층후도、pH、유궤질등대토양유효양분함량적영향。결과현시，중경부분연구토양산화엄중，속효담、린、갑함량봉부，제유효붕、목화수용성록외기타중미량원소함량균위봉부혹흔봉부。전형상관분석현시，토양감해담、유효동、유효자、유효철、유효붕함량수유궤질적증가이증가；토양속효갑화유효자함량수해발승고이증가；토양pH적강저장도치유효린、유효철함량적강저，교환성개함량적증가；토양교환성미등양분함량수경층후도적증가이증가。인차，생산상응착중해결토양산화、유궤질저、경층천등문제，병합리포국식연구역，이제공연초산질량형성적괄의배경。
In order to identify the main influencing factors on soil available nutrient contents in Chongqing, canonical correlation analysis was conducted by using variable altitude, topsoil thickness, pH, organic matter, and soil available nutrient contents. Descriptive statistic results showed that the soil acidification was severe in some regions of Chongqing. Soil available nitrogen, phosphorus, and potassium were sufficient to tobacco growth. The trace elements, except for available boron, molybdenum and chlorine, were high or very high. The canonical correlation analysis results suggested that the content of available nitrogen, copper, zinc, iron, and B increased with increasing soil organic matte. The contents of available potassium and Zn decreased with the altitude decreasing. With the decreasing of soil pH, the content of available phosphorus and iron decreased, but soil exchangeable calcium content increased. Soil exchangeable magnesium content increased with increasing soil topsoil thickness. Therefore, the problem of soil acidification, low in organic matter, shallow topsoil layer need to be solve in order to provide suitable environment for higher yield and quality of flue-cured tobacco.