Effects of heavy metal (Pb) concentration on some growth parameters of plants grown in lead polluted soil under organic fertilizer amendment     

Ojo M. Oseni  Adekunle A. Adelusi  Esther O. Da  Abdulfatai B. Rufai 《寒旱区科学》2016,8(1):36-45

This study investigated morphological variation and biomass accumulation that occurred in Sida acuta and Chromolaena odorata plants grown in lead polluted soil under organic fertilizer amendment. The study was carried out in the screen house at the Biological Gardens of the Obafemi Awolowo University, Ile-Ife, Osun State. The experiment was a factorial combination of one heavy metal (Pb) at five levels of concentration (0, 200, 400, 800 and 1,000 mg/kg) in a completely randomized design, and were replicated three times for each of the two plants and two levels (0 g/kg and 9.4 g/kg) of organic fertilizer (OBD-Plus). Each pot was filled with 5 kg of air-dried and sieved soil and placed on a plastic tray for the collection of excess water. Two weeks after planting, seedlings of uniform height were transplanted from the nursery to experimental pots at the rate of one seedling per pot and grown for 10 weeks. The growth parameters of the plants were biomonitored for 7 weeks. After 10 weeks of treatment, the plants were harvested and dried to calculate the biomass accumulation. The two plant species performed better under fertilizer application than without it. For each of the plant species the growth parameters decreased as the levels of Pb concentration increased. Furthermore, the plants' biomass decreased significantly (p<0.05) as the levels of Pb concentration increased. The organic fertilizer helped to improve the plants' performance in lead-polluted soil.  相似文献   

Geochemistry and Petrogenesis of Intracontinental Basaltic Volcanism on the Northwest Arabian Plate,Gaziantep Basin,Southeast Anatolia,Turkey     

Sevcan KüRüM  Abdurrahman B?LüCü  Melek URAL 《《地质学报》英文版》2018,92(2):519-535

Volcanism along the northwest boundary of the Arabian Plate found in the Gaziantep Basin, southeast Turkey, is of Miocene age and is of alkaline and calc-alkaline basic composition. The rare earth element data for both compositional series indicates spinel–peridotite source areas. The rare earth and trace elements of the alkaline lavas originate from a highly primitive and slightly contaminated asthenospheric mantle; those of the calc-alkaline lavas originate from a highly heterogeneous, asthenospheric, and lithospheric mantle source. Partial melting and magmatic differentiation processes played a role in the formation of the petrological features of these volcanics. These rocks form two groups on the basis of their ~(87) Sr/~(86) Sr and ~(143) Nd/~(144) Nd isotopic compositions in addition to their classifications based on their chemical compositions(alkaline and calc-alkaline). These isotopic differences indicate a dissimilar parental magma. Therefore, high Nd isotope samples imply a previously formed and highly primitive mantle whereas low Nd isotope samples may indicate comparable partial melting of an enriched heterogeneous shallow mantle. Other isotopic changes that do not conform to the chemical features of these lavas are partly related to the various tectonic events of the region, such as the Dead Sea Fault System and the Bitlis Suture Zone.  相似文献   

Borehole Stability in Deep Bedding Formations     

Wang Z.Q.  Ding L.Q.  Yang J.  Liu B.L. 《《地质学报》英文版》2018,92(Z1):196-196

  相似文献   

野外地质试样中金的萃取—X射线辐射测定     

B.B.MopenЛaBUeB 《黄金地质科技》1990,(1):72-74

本文介绍了野外地质试样中的萃取－X射线辐射测定法。该法的优点是仪器重量轻，价廉，耗电量小，简易，快速，组件部分成批生产等，可广泛应用于地质勘探工作实践。  相似文献   

城市化对浅层地下水含水层的影响   总被引：1，自引：0，他引：1  

Merke.  B 杜红涛 《水文地质工程地质译丛》1990,(1):24-31

  相似文献   

石油和天然气地球化学普查的科学原理   总被引：1，自引：0，他引：1  

B.A.索科洛夫  邱郁文 《世界地质》1990,(3)

石油和天然气地球化学普查方法,是以利用含油气性的各种地球化学标志或地球化学指标为依据的。由于油气藏的各组分及与其相伴生的物质的迁移作用,在油气藏上方直至地表的岩层中,以及这些岩层所含的水中均可以观察到含油气性的地球化学标志。气体测量是第一种油气地球化学普查方法,而气测领域内的工作在苏联始于本世纪  相似文献   

中非东部Kibaran带的地球动力学演化     

A.B.Kampunzu  A.Ntungicimpaye  B.T.Rumvegeri 《世界地质》1988,(2)

位于中非东部的Kibaran带被解释为大约在1400～950Ma期间发育的碰撞带。碰撞带演化不同阶段的岩浆特征解释如下: 1.大陆裂谷作用阶段(>1400Ma),在东部扎伊尔下Kibaran单元,角闪岩与大陆拉斑玄武岩质的和碱性同源的麻粒岩互层为特征(Shaba,未公布资料;Kivu,参考资料1)。  相似文献   

Correlation of the Meishucunian Stage in South Asia     

M.D.Brasier  B.Hamdi 《《地质学报》英文版》1989,63(1):1-9

The determination of boundary points and their correlation are prerequisites for defining the PrecambrianCambrian boundary and the intercontinental correlation. A large number of good Precambrian-Cambrian boundary sections in South Asia not only possess the conditions for selection of a boundary stratotype, but also provide the basis for the long-distance correlation of those boundary sections.Through a detailed study of the latest data obtained from the typical sections in South China, the Lesser Himalaya Mountains and the Alborz Mountains. the locations of boundary points have been defined, and a correlation scheme is proposed, which contributes to the solution of the problem of worldwide correlation of boundary sections.  相似文献   

印度克什米尔盆地更新世气候变化及其景观的演变：古土壤和年代...     

Arnt.  B  张志良 《国外第四纪地质》1989,(1):1-10

  相似文献   

相关数偶分析     

B  &#;R  &#;Bowring  冯锡昌 《浙江测绘》1988,(2):58-64,16

本文导出了一种解数学上相关的数偶问题（例如确定一对坐标）的复数法。  相似文献