CAJ | 학술논문

为筛选可用于陕北油田区石油污染土壤修复的杂草植物，试验通过野外调查，选择当地石油污染严重的土壤上能较好生长的7种杂草植物为研究对象，以种子发芽作为生态指示，设置不同土壤石油质量浓度的培养试验，通过观测每天的发芽率和最终发芽时间，研究了杂草种子对石油污染的耐受性。结果表明，在土壤石油质量分数达到9 g/kg时各杂草种子发芽率开始受到抑制。石油污染胁迫下总体萌发能力排序为：狗尾草(Setaria viridis)>沙打旺(Astragalus adsurgens)>紫花苜蓿(Medicago sativa)>草木犀(Melilotus officinalis)>皱果苋(Amaranthus viridis)>灰灰菜(Chenopodium album)>黄花蒿(Artemisia annua)。其中狗尾草、紫花苜蓿、沙打旺和草木犀4种杂草植物在石油质量分数为9，17 g/kg土壤中发芽率都达到对照的70%以上，对石油污染胁迫具有较强的耐受性。在试验条件下(培养前蒸馏水浸种24 h)，土壤石油并未对杂草种子发芽时间造成显著影响。
위사선가용우협북유전구석유오염토양수복적잡초식물，시험통과야외조사，선택당지석유오염엄중적토양상능교호생장적7충잡초식물위연구대상，이충자발아작위생태지시，설치불동토양석유질량농도적배양시험，통과관측매천적발아솔화최종발아시간，연구료잡초충자대석유오염적내수성。결과표명，재토양석유질량분수체도9 g/kg시각잡초충자발아솔개시수도억제。석유오염협박하총체맹발능력배서위：구미초(Setaria viridis)>사타왕(Astragalus adsurgens)>자화목숙(Medicago sativa)>초목서(Melilotus officinalis)>추과현(Amaranthus viridis)>회회채(Chenopodium album)>황화호(Artemisia annua)。기중구미초、자화목숙、사타왕화초목서4충잡초식물재석유질량분수위9，17 g/kg토양중발아솔도체도대조적70%이상，대석유오염협박구유교강적내수성。재시험조건하(배양전증류수침충24 h)，토양석유병미대잡초충자발아시간조성현저영향。
To screen plants for phytoremediation of petroleum- contaminated soils, four treatments with different levels of petroleum pollutants were designed and seed germination rate and germination time of 7 tested plant species were determined to investigate the germination adaptability of the tested plants in petroleum- contaminated soils. The results showed that these weed seeds were inhibited when the concentrations of petroleum pollution reached 9 g/kg. The germination adaptability of the tested plants was as follows:Setaria viridis>Astragalus adsurgens>Medicago sativa>Melilotus officinalis> Amaranthus viridis > Chenopodium album > Artemisia annua. The germination rate of Setaria viridis, Astragalus adsurgens, Medicago sativa and Melilotus officinalis could be above 70% when the concentration of petroleum pollution was 9 and 17 g/kg, and these plant species have a high tolerance of petroleum hydrocarbon contamination. Under the experimental conditions (Soaking seeds 24 h by distilled water before culture, petroleum pollution did not have a significant effect on the germination of weed seeds.