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標題

Introduction to Biochar as an Agricultural and Environmental Amendment

作者

Mingxin Guo, Zhongqi He, Sophie Minori Uchimiya

名稱(期刊/節目)

Agricultural and Environmental Applications of Biochar: Advances and Barriers

期刊期數/節目集數

Volume 63, Pages 1-14

出版單位

Wiley

出版年月日

2015/10/29

原文摘要

This introductory chapter justifies and outlines biochar use for current and potential agricultural and environmental applications. Biochar is fine‐grained or granular charcoal made by heating vegetative biomass, bones, manure solids, or other plant‐derived organic residues in an oxygen‐free or oxygen‐limited environment and used as a soil amendment for agricultural and environmental purposes. Persistent in the environment and retaining water, nutrients, and contaminants, biochar can be used in crop production as a soil conditioner for improving soil quality, enhancing fertilizer use efficiency, promoting plant growth, increasing carbon sequestration, and reducing greenhouse gas emissions. It can also be used in environmental rehabilitation for remediating contaminated soils and reclaiming abandoned mine land. It can further be used in animal husbandry as a feed additive to improve livestock weight gain, as a barn bedding material to enhance animal health, and as a nutrient absorbent to treat animal waste. The quality of biochar, however, varies with feedstock materials, production conditions, and even storage. Because of lack of biochar application awareness and technological constraints, global production and utilization of biochar is currently in a fledgling state. Education and outreach are needed to expand the biochar industry.

原文摘要簡述

本介紹性章節說明並概述了生物炭在當前與潛在的農業、環境應用中的使用。生物炭是在無氧或限氧的環境中加熱植物性生物質、骨骼、固體糞肥或其他植物來源的有機殘留物製成的細粒或顆粒狀炭品,並用作農業和環境用途的土壤改良劑。生物炭持久存在於環境中並保留水分、養分和污染物,可在作物生產中用作土壤調和劑以改善土壤品質、提高肥料使用效率、促進植物生長、增加碳吸存,並減少溫室氣體排放。它也可以用於環境復育,以修復受污染的土壤和開墾廢棄的礦區。它可以進一步在畜牧業中用作飼料添加劑,以改善牲畜的體重增加;作為穀倉的墊料,以強化動物的健康;以及作為營養吸收劑,以處理動物廢物。然而,生物炭的品質隨料源、生產條件甚至儲存條件而不同。由於缺乏生物炭的應用意識和技術限制,生物炭的全球生產和利用目前處於起步階段,因此需要進行教育和推廣,以擴大生物炭產業。

關鍵字

agricultural application; biochar production; biochar usage; environmental application; quality characteristics

連結

https://doi.org/10.2136/sssaspecpub63.2014.0034

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