کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5751804 1619710 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Potential role of biochars in decreasing soil acidification - A critical review
ترجمه فارسی عنوان
نقش پتانسیل زیستی قارچ ها در کاهش اسیدزدایی خاک - بررسی انتقادی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


- On-going soil acidification is an important global issue.
- Biochar is of great potential value in decreasing soil acidification.
- Effectiveness and mechanism of biochars on acid soil improvement are discussed.
- Biochar is as effective as other soil additives as acid soil amendment.

A large number of soils, worldwide, are acid (normally pH < 5.5) and suffering from on-going soil acidification. Acid soils or soils undergoing acidification generally have low fertility and low crop productivity. Biochars have been reported to be of potential value in agriculture for improving soil properties and in reducing the hazards caused by soil acidification and in naturally acidic soils. However, the ameliorant effects of biochars on acid soils and the mechanisms involved have not previously been critically reviewed. Here we summarize the phenomena, and mechanisms involved in the improvement of soil acidity by biochars, the alleviation of aluminum toxicity, the enhancement of nutrient availability, and changes in nitrification by collating data in the literature. In addition, the agronomic effectiveness and environmental concerns in the incorporation of biochar and other soil additives (i.e. lime, industrial by-products, organic wastes and plant residues) to acid soils are systemically compared. We conclude that biochar is a potentially effective amendment to reverse or to prevent acidification in acid soils. Finally, perspectives for further research in terms of soil acidification are presented to address some issues that are still poorly understood and/or highly controversial.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volumes 581–582, 1 March 2017, Pages 601-611
نویسندگان
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