添加稻草生物炭对汞污染土壤中种植的朝鲜蓟（Cynara cardunculus）的土壤特性和养分吸收的影响

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

MAUSAM Pub Date : 2024-03-24 DOI:10.54302/mausam.v75i2.4839

Ghulam Murtaza, Muhammad Usman, Fanoos Haider

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引用次数: 0

摘要

因此，本盆栽实验旨在研究施用生物炭对受汞污染土壤的某些特性的影响，以及受污染土壤中种植的朝鲜蓟（Cynara cardunculus）的吸收情况。在受到不同浓度（0、10、20 ppm）汞人工污染的土壤中，以不同比例（0、5、10 吨/公顷）添加从稻草中提取的生物炭。研究表明，添加生物炭后，电导率、pH 值、可利用磷、全氮、可交换碱、阳离子交换容量和有机碳都有了明显改善（P < 0.01）。此外，施用生物炭还显著提高了朝鲜蓟（Cynara cardunculus）对钾、磷和氮的吸收。在汞污染严重（20 ppm）的土壤中，施用生物炭后汞的吸收量也明显减少。因此，施用生物炭对于改善土壤质量和肥力、提高养分吸收率、改良受汞污染的土壤以及减少生物质燃烧产生的碳量至关重要。

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Influence of rice straw biochar addition on soil traits and nutrient uptake of Artichoke (Cynara cardunculus)grown in Mercury-contaminatedsoils

The present pot experiment was therefore conducted to investigate the effect of biochar application on the selected properties of mercury polluted soils and uptake of Artichoke (Cynara cardunculus) grown in polluted soils.Biochar obtained from rice straw was added at various rates (0, 5, 10 t/ha) on the soil artificially contaminated with mercury at a different concentration (0, 10, 20 ppm). The research indicated a significant (P < 0.01) improvement in electrical conductivity, pH, available phosphorus, total nitrogen, exchangeable bases, cation exchange capacity and organic carbon owing to biochar addition.Additionally, uptake of potassium, phosphorus and nitrogen by Artichoke (Cynara cardunculus) was significantly enhanced by biochar application. A significant decrease in uptake of mercury owing to biochar application was also noticed in heavily mercury-contaminated soil (20 ppm). Hence, biochar application is mostvital to improve soil quality and fertility, improve nutrients uptake, amend Hg contaminated soil and decrease the quantity of carbon formedowing to the biomassburning.

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来源期刊

MAUSAM 地学-气象与大气科学

CiteScore

1.20

自引率

0.00%

发文量

1298

审稿时长

6-12 weeks

期刊介绍： MAUSAM (Formerly Indian Journal of Meteorology, Hydrology & Geophysics), established in January 1950, is the quarterly research journal brought out by the India Meteorological Department (IMD). MAUSAM is a medium for publication of original scientific research work. MAUSAM is a premier scientific research journal published in this part of the world in the fields of Meteorology, Hydrology & Geophysics. The four issues appear in January, April, July & October.