CAJ | 학술논문

为云贵高原南部岩溶峰丛山区的环境治理提供科学依据，以云南省广南县那洒至马街段岩溶区不同时代的石灰土为样体，采用实地调查、采样和检测的方法，对云贵高原南部岩溶峰丛山区石灰土微量元素的地化特征及环境质量进行分析评价。结果表明：石灰土在成土过程中微量元素以迁移聚集为主，迁移聚集因子占93．44％，迁移聚集量为母岩的1～27．5倍，最高达82．6倍；石灰土微量营养元素 Ni、Zn、Mn 和Cu 等含量丰富，P、Co 和 S 等含量呈贫乏至严重贫乏。除 O1x、∈ Ob地段外，其余地段石灰土区均已受到 Cd、As 和 Ni 等元素的复合型轻至重度超标污染，P综为1．05～9．86；成土过程中的自然迁移与聚集是微量元素超标的来源。
위운귀고원남부암용봉총산구적배경치리제공과학의거，이운남성엄남현나쇄지마가단암용구불동시대적석회토위양체，채용실지조사、채양화검측적방법，대운귀고원남부암용봉총산구석회토미량원소적지화특정급배경질량진행분석평개。결과표명：석회토재성토과정중미량원소이천이취집위주，천이취집인자점93．44％，천이취집량위모암적1～27．5배，최고체82．6배；석회토미량영양원소 Ni、Zn、Mn 화Cu 등함량봉부，P、Co 화 S 등함량정빈핍지엄중빈핍。제 O1x、∈ Ob지단외，기여지단석회토구균이수도 Cd、As 화 Ni 등원소적복합형경지중도초표오염，P종위1．05～9．86；성토과정중적자연천이여취집시미량원소초표적래원。
The limestone soil samples with different age from karst area of Nasamajie town,Guangnan County,Yunnan were analyzed by field investigation,sample collection and determination,and then the geochemical characteristics and environmental quality of microelements in limestone soil in Southeast Yunnan were evaluated to provide the scientific basis for environmental management of karst mountainous area in Southeast Yunnan. The results showed that: 1 ) Microelements are mainly migration and aggregation during the soil-forming process of limestone soil,migration and aggregation factor accounts for 93.44%,and migration and aggregation amount is 1~27.5 time that of mother rock;2)The content of Ni,Zn,Mn and Cu is abundant but the content of P,Co and is poor and very poor.Except for O1xand ∈ Ob districts,the limestone soil of other districts is complexly polluted by Cd,As and Ni slightly and severely. P integration is 1.05~9.86.Natural migration and aggregation is the source of higher microelement content in limestone soils during the soil-forming process.