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知識類型

期刊

標題

Biochar

作者

Lauren M.Deem, Susan E.Crow

名稱(期刊/節目)

Reference Module in Earth Systems and Environmental Sciences

出版單位

ELSEVIER

出版年月日

2017

原文摘要

Biochar is organic matter that has undergone combustion under low to no oxygen conditions (i.e., pyrolysis) resulting in a recalcitrant, high carbon material specifically for use as a soil amendment. Recently, fervent interest in the production of biochar to address issues of fertility, water holding capacity, remediation, climate change mitigation, etc., led to much greater understanding of the complexities of this potential amendment in altering soil biological, chemical, and physical properties. Rather than assume benefit of any biochar created from any feedstock added to any soil ecosystem, concepts of matching appropriate feedstock and pyrolysis condition to soil type to achieve specific goals associated with remediation, increasing yields, decreasing greenhouse gas emission, and/or climate change mitigation emerged. The potential for biochar to improve both environmental and economic viability remains but should be explored fully in a integrative analysis of waste-stream management, local biochar production capacity, realized improvement in soil function, etc., with an economic benefit-cost and net greenhouse warming potential analysis of the system.

原文摘要簡述

生物炭是有機物質在低至無氧條件下燃燒(即熱裂解)而產生的高碳封存材料,專門用作土壤改良劑。近年來,人們對於生物炭產品產生極大的興趣在於它們解決肥料、保水力、土壤改良及緩解氣候變化等問題,導致人們更深入地了解這種複雜的土壤生物、化學及物理性質潛在改良方式。而不是理所當然地認為在任何土壤生態系統中添加任何生物炭都可得到其效益,並提出適當溫度下熱裂解的生物炭添加在合適的土壤類型中,以達到土壤改良、增加產量、減少溫室氣體排放和(或)減緩氣候變遷等明確具體的目標。生物炭兼具有改善環境與經濟發展的潛力,但必須充分探討經濟效益成本和淨化溫室效應潛力在廢棄物管理流程、當地生物炭產能、實際改善土壤功能等系統評估。

關鍵字

Biochar; Carbon sequestration; Greenhouse gas flux; ; Pyrolysis; Remediation; Soil amendment; Soil fertility; Soil health; Soil quality

連結

https://doi.org/10.1016/B978-0-12-409548-9.10524-X

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