生物炭应用于温带草原:为提供多种生态系统服务提供挑战和机会
Robert W Brown1, David R Chadwick1, Tom Bott2
1School of Natural Sciences, Bangor University, Bangor, LL57 2UW Gwynedd UK.
概括
生物炭显示出在草原中增加土壤有机碳 (SOC) 的潜力,这是一个重要的生态系统服务. 然而,广泛采用面临实际,经济和立法障碍,需要进一步研究气候变化减缓.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 草原覆盖了地球陆地表面的很大一部分,对生态系统服务至关重要,包括储存大量的土壤有机碳 (SOC).
- 虽然碳捕获研究通常针对农田,但草原为增加碳储存提供了独特的机会,特别是在生物炭等新兴技术方面.
- 到2050年实现净零排放的全球要求需要探索所有可行的碳封存策略,包括草原生态系统中的碳封存策略.
研究的目的:
- 批判性地评估生物炭作为增强不同草原类型 (自然,半自然,改进) 碳库存的技术的潜力.
- 识别和分析阻碍草原广泛采用生物炭的实际,经济,社会和立法挑战.
- 评估生物炭应用对不同草原管理和土壤特征的生态系统服务提供的影响.
主要方法:
- 对现有的关于草原生物炭应用的科学文献进行批判性审查.
- 评估生物炭对各种草原类型的适用性及其对生态系统服务的潜在影响.
- 对各种生物炭应用技术的分析,包括表土和地下土壤的结合.
主要成果:
- 生物炭在草原中增加土壤有机碳 (SOC) 的潜在途径.
- 显著的实际,经济,社会和立法挑战阻碍了生物炭技术在这些生态系统中的广泛实施.
- 生物炭对生态系统服务的净影响需要仔细考虑,特别是在经营的草原.
结论:
- 核心问题仍然是,管理的草原是否可以增加碳储存,而不会对其他生态系统服务产生负面影响.
- 未来的研究必须采用多学科和整体方法,以充分理解生物炭在草原碳捕获中的作用,以缓解气候变化.
- 应对已确定的挑战对于释放生物炭作为草原气候变化缓解工具的潜力至关重要.
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