CAJ | 학술논문

调查了山东省临朐县和蒙阴县植烟土壤的母质类型,并对两县共79个土样的交换性钙镁含量进行了分析.结果表明,两县烟田耕作层土壤中交换性钙、镁含量均为丰富及以上.不同母质发育的耕层土,石灰岩和砂页岩养分含量丰富,花岗岩较少.两县土壤养分剖面分布规律:临朐县交换性钙的含量随着土层的深入,大致呈现降低的趋势,但变异较大;蒙阴县交换性钙含量随着土层深入呈增加趋势,交换性镁分布规律两县表现一致,在表层含量最高,随土层深度增加含量略有下降.
조사료산동성림구현화몽음현식연토양적모질류형,병대량현공79개토양적교환성개미함량진행료분석.결과표명,량현연전경작층토양중교환성개、미함량균위봉부급이상.불동모질발육적경층토,석회암화사혈암양분함량봉부,화강암교소.량현토양양분부면분포규률:림구현교환성개적함량수착토층적심입,대치정현강저적추세,단변이교대;몽음현교환성개함량수착토층심입정증가추세,교환성미분포규률량현표현일치,재표층함량최고,수토층심도증가함량략유하강.
@@@@Distribution characteristics of exchangeable calcium and magnesium of 79 arable layer soil samples from tobacco growing areas in Linqu and Mengyin were analyzed. Results showed that exchangeable Ca and Mg were abundant in both Linqu and Mengyin counties. Soils developed from limestone and shale showed higher nutrient level than granite, especially in Mengyin county. vertical distribution pattern of exchangeable Ca and Mg was proposed as following: exchangeable Ca decreased with increase of soil depth with high RSD in Linqu, while Mengyin was the opposite. Exchangeable Mg maintained stable and showed a slight decrease trend with soil depth increase in both Linqu and Mengyin.