CAJ | 학술논문

采集陕北石油污染区典型荒地土壤,分别以3种石油污染水平(轻度污染15g/kg,中度污染30g/kg,重度污染45g/kg)油土混合培养后,施入当地9种常见灌木枯落叶进行室内分解培养试验120d,检测不同灌木枯落叶对油污土壤生物化学性质的影响。结果表明：柠条、沙棘、紫穗槐、沙蒿和小叶女贞枯落叶可明显促进3种水平油污土壤微生物的生长和土壤呼吸。柽柳、柠条、花棒和踏榔枯落叶可明显促进3种水平油污土壤碱性磷酸酶和脱氢酶活性。柠条、沙蒿、踏榔、小叶女贞、花棒、柽柳和紫穗槐枯落叶可明显增加3种水平油污土壤有机碳和速效K含量。爬地柏、沙棘和花棒枯落叶可明显提高3种水平油污土壤Fe、Mn和Zn的有效性。综合而言,柠条和踏榔枯落叶对3种水平油污土壤均有明显改良效果,紫穗槐枯落叶对轻度油污土壤、小叶女贞枯落叶对中度油污土壤,柽柳和紫穗槐枯落叶对重度油污土壤也均有较明显的改良效果。
채집협북석유오염구전형황지토양,분별이3충석유오염수평(경도오염15g/kg,중도오염30g/kg,중도오염45g/kg)유토혼합배양후,시입당지9충상견관목고락협진행실내분해배양시험120d,검측불동관목고락협대유오토양생물화학성질적영향。결과표명：저조、사극、자수괴、사호화소협녀정고락협가명현촉진3충수평유오토양미생물적생장화토양호흡。정류、저조、화봉화답랑고락협가명현촉진3충수평유오토양감성린산매화탈경매활성。저조、사호、답랑、소협녀정、화봉、정류화자수괴고락협가명현증가3충수평유오토양유궤탄화속효K함량。파지백、사극화화봉고락협가명현제고3충수평유오토양Fe、Mn화Zn적유효성。종합이언,저조화답랑고락협대3충수평유오토양균유명현개량효과,자수괴고락협대경도유오토양、소협녀정고락협대중도유오토양,정류화자수괴고락협대중도유오토양야균유교명현적개량효과。
A laboratory simulation experiment was conducted to analyze the improvement effects of 9kinds of shrub litters on biochemical properties of three levels petroleum-contaminated soil (light, 15g/kg;moderate, 30g/kg;severe, 45g/kg) for 120days, by collecting typical wasteland soil in petroleum contaminated areas of northern Shaanxi, and then mixing oil and shrub litters with the soil. The results show that:Litters of Caragana microphylla, Hippophae rhamnoides, Amorpha fruticosa, Rtemisia desterorum and Ligustrum quihoui can significantly contribute to the soil respiration and growth of microbes in three levels of petroleum contaminated soil. Litters of Tamarix chinensis, Caragana microphylla, Hedysarum scoparium and Hedysarum fruticosum can obviously promote the activities of soil alkaline phosphatase and dehydrogenase in three levels of petroleum contaminated soil. Litters of Caragana microphylla, Rtemisia desterorum, Hedysarum fruticosum, Ligustrum quihoui, Hedysarum scoparium, Tamarix chinensis and Amorpha fruticosa can obviously increase the soil organic carbon and available potassium contents in three levels of pollutions. Litters of Sabina procumbens, Hippophae rhamnoides and Hedysarum scoparium can significantly improve the contents of soil available Fe, Mn and Zn in three levels of pollutions. According to comprehensive analysis, litters of Caragana microphylla and Hedysarum fruticosum have significantly improving effects on biochemical properties of three levels of petroleum contaminated soil, and it will be better for Amorpha fruticosa in light pollution, Ligustrum quihoui in moderate pollution, Tamarix chinensis and Amorpha fruticosa in severe pollution than others.