CAJ | 학술논문

　　土壤蜱螨目是土壤质量评价的较好指示生物，但还很少用于多环芳烃（PAHs）污染的研究。已有的研究主要采用群落组成参数作为指标特征，且大多在类群水平上，如，密度、类群多度、多样性指数和均匀性指数等。由于这些指标是建立在较粗的分类基础上，因此，评价结果通常变异性较大，不够稳定。本研究是在物种水平上，除对群落组成参数外，还着重对生活史和雌雄性比例等生物学特征进行了研究，以筛选更为敏感的指标特征。研究采用污染田与对照田对比的方法，于2008年对华东区一蔬菜田的PAHs污染及其对土壤螨群落结构的影响进行了调查研究。除土壤螨群落结构参数和16种优先监控PAH化合物外，还对土壤理化和重金属进行了测定。PAHs在污染田中的总浓度为18.7 to 26.8 mg kg-1 dw soil，比对照田高5.3到7.6倍。污染田甲螨亚目低等类的密度和种丰富度比对照田分别高3.2到8.5和1.0到2.2倍。相反的，中气门亚目的1r策略选择种密度、雄性个体密度和雌/雄性比例在对照田比在污染田分别高0.9到1.1、2.2到3.3和1.0到2.6倍，且与总 PAH 浓度呈显著负相关。这一研究结果表明：甲螨亚目低等类和中气门亚目的1r 种、雄性个体以及雌/雄性比例等相关特征对土壤PAH污染敏感，因而，可进一步筛选作为土壤污染的评价指标。
　　토양비만목시토양질량평개적교호지시생물，단환흔소용우다배방경（PAHs）오염적연구。이유적연구주요채용군락조성삼수작위지표특정，차대다재류군수평상，여，밀도、류군다도、다양성지수화균균성지수등。유우저사지표시건립재교조적분류기출상，인차，평개결과통상변이성교대，불구은정。본연구시재물충수평상，제대군락조성삼수외，환착중대생활사화자웅성비례등생물학특정진행료연구，이사선경위민감적지표특정。연구채용오염전여대조전대비적방법，우2008년대화동구일소채전적PAHs오염급기대토양만군락결구적영향진행료조사연구。제토양만군락결구삼수화16충우선감공PAH화합물외，환대토양이화화중금속진행료측정。PAHs재오염전중적총농도위18.7 to 26.8 mg kg-1 dw soil，비대조전고5.3도7.6배。오염전갑만아목저등류적밀도화충봉부도비대조전분별고3.2도8.5화1.0도2.2배。상반적，중기문아목적1r책략선택충밀도、웅성개체밀도화자/웅성비례재대조전비재오염전분별고0.9도1.1、2.2도3.3화1.0도2.6배，차여총 PAH 농도정현저부상관。저일연구결과표명：갑만아목저등류화중기문아목적1r 충、웅성개체이급자/웅성비례등상관특정대토양PAH오염민감，인이，가진일보사선작위토양오염적평개지표。
Soil mites are good indicators for soil quality assessment, but they rarely have been used to indicate pollution levels of soil polycyclic aromatic hydrocarbons (PAHs). In former studies, mite community structure parameters (usually at group level) such as density, group richness, diversity index and evenness were mainly used as indicators. Since these indicators were established on coarse taxonomic resolution, the assessment effects have usually been found to be variable and unstable. The present study aims at finding more sensitive parameters of soil mite communities to PAHs among individual species, sex ratio and life history traits. Ef-fects of PAH contamination on mite community structure were investigated in vegetable fields in Eastern China December, 2008, by contrasting the effects observed in the polluted soil with the reference study sites. Soil properties and heavy metals were examined as well as the PAH concentrations and mite community structure parameters. Total concentration of PAHs in polluted sites was ca. 18.7 to 26.8 mg kg-1 dw soil, being 5.3 to 7.6 times of that in reference study site. Density and species richness of Macropylina, (Ori-batida), in polluted sites were 3.2 to 8.5 and 1.0 to 2.2 times more than those in reference site, respectively. Oppositely, 1r-species density, male density and sex ratio of Mesostigmata were higher in reference site than in polluted sites by 0.9 to 1.1, 2.2 to 3.3 and 1.0 to 2.6, respectively, and negatively correlated with total PAH concentration. The results suggest that Macropylina and 1r-species, male individuals and sex ratio of Mesostigmata may be sensitive to soil PAH pollution directly or indirectly and can be further de-veloped as indicators for assessment of soil pollution.