Assesment of compost and Technosol as amendments to increase nutrient contents in a mine soil vegetated with Brassica juncea

IF 2 Q3 SOIL SCIENCE

Spanish Journal of Soil Science Pub Date : 2018-11-15 DOI:10.3232/SJSS.2018.V8.N3.02

R. Forján, A. R. Vila, Beatriz Cerqueira Cancelo, Mati Amano Geleto, Verónica Asensio Fandiño, E. Covelo

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引用次数: 0

Abstract

Abandoned mines pose potential risks to the environment and human health, and the reclamation of these areas is difficult. Soils from mining areas are usually characterised by degraded structure, high concentration of potentially toxic elements and deficiencies in nutrients. A greenhouse experiment was carried out in cylinders with the mine soil from the settling pond of the depleted copper mine of Touro (Galicia, Northwest Spain) amended with compost or technosol made from organic and inorganic wastes, and planted with Brassica juncea for 11 months. The aim of the study was to evaluate the effect of compost and technosol amendments on nutrient concentrations at different depths in a mine soil planted with Brassica juncea. The results revealed that at depths 0-15 and 15-30 cm, soil+technosol+Brassica juncea (STP) and soil+compost+Brassica juncea (SCP) treatments had higher pH than untreated mine soil S at the end of experimental. At depths 0-15 and 15-30 cm, SCP had the highest carbon total content. The nitrogen was only detected at depth 0–15 cm and only in the treated settling pond soil. STP and SCP had higher percentage of base saturation (V%) and lower percentage of aluminum saturation (Al%) than S and SS (sand). At depth 0-15 cm, soil+technosol+Brassica juncea (STP) and soil+compost+Brassica juncea (SCP) did not show generally significant differences on the nutrients values. At time 3, Brassica juncea plants cultivated in soil+compost+Brassica juncea (SCP) had the highest biomass. Soil+technosol+Brassica juncea (STP) treatment was the most effective increasing soil pH. Soil+compost+Brassica juncea treatment was the one that produced the greatest increase in total carbon. The treatments increased the cation exchange capacity (CEC) at depth 0-15 cm. Both treatments corrected the CEC by increasing the V% and decreasing the Al%. The application of technosol and Brassica juncea plants, or compost and Brassica juncea to a mine soil improved the soil quality.

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施用堆肥和Technosol增加甘蓝型油菜矿区土壤养分含量的评价

废弃的矿山对环境和人类健康构成潜在风险，这些地区的复垦工作十分困难。矿区土壤的特征通常是结构退化、潜在有毒元素浓度高和养分缺乏。用Touro（西班牙西北部加利西亚）贫铜矿沉淀池中的矿山土壤，用有机和无机废物制成的堆肥或技术溶胶进行了圆柱体温室试验，并种植芥菜11个月。本研究的目的是评估堆肥和技术溶胶改良剂对种植芥菜的矿山土壤不同深度养分浓度的影响。结果表明，在0～15和15～30cm深度，土壤+技术溶胶+芥子菜（STP）和土壤+堆肥+芥子甘蓝（SCP）处理的pH值均高于未处理的矿山土壤S。在0-15和15-30cm深度，SCP的碳总含量最高。氮仅在0–15 cm深处检测到，并且仅在处理过的沉淀池土壤中检测到。STP和SCP的碱饱和度（V%）高于S和SS（砂），铝饱和度（Al%）低于S和SS。在0-15cm深度，土壤+技术溶胶+芥菜（STP）和土壤+堆肥+芥菜。在时间3，土壤+堆肥+芥菜（SCP）培养的芥菜植物的生物量最高。土壤+技术溶胶+芥菜（STP）处理对土壤pH值的提高最为有效，土壤+堆肥+芥菜处理对总碳的增加最大。处理提高了0-15cm深度的阳离子交换容量（CEC）。两种处理都通过增加V%和降低Al%来校正CEC。在矿山土壤中施用技术溶胶和芥菜植物，或堆肥和芥菜改善了土壤质量。

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来源期刊

Spanish Journal of Soil Science SOIL SCIENCE-

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： The Spanish Journal of Soil Science (SJSS) is a peer-reviewed journal with open access for the publication of Soil Science research, which is published every four months. This publication welcomes works from all parts of the world and different geographic areas. It aims to publish original, innovative, and high-quality scientific papers related to field and laboratory research on all basic and applied aspects of Soil Science. The journal is also interested in interdisciplinary studies linked to soil research, short communications presenting new findings and applications, and invited state of art reviews. The journal focuses on all the different areas of Soil Science represented by the Spanish Society of Soil Science: soil genesis, morphology and micromorphology, physics, chemistry, biology, mineralogy, biochemistry and its functions, classification, survey, and soil information systems; soil fertility and plant nutrition, hydrology and geomorphology; soil evaluation and land use planning; soil protection and conservation; soil degradation and remediation; soil quality; soil-plant relationships; soils and land use change; sustainability of ecosystems; soils and environmental quality; methods of soil analysis; pedometrics; new techniques and soil education. Other fields with growing interest include: digital soil mapping, soil nanotechnology, the modelling of biological and biochemical processes, mechanisms and processes responsible for the mobilization and immobilization of nutrients, organic matter stabilization, biogeochemical nutrient cycles, the influence of climatic change on soil processes and soil-plant relationships, carbon sequestration, and the role of soils in climatic change and ecological and environmental processes.