Spatial Assessment of Degraded Lands for Biofuel Production in Indonesia
Spatial Assessment of Degraded Lands for Biofuel Production in Indonesia
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DOI：
10.3390/su10124595
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发表时间：
2018-11
期刊：
影响因子：
3.9
通讯作者：
Wanggi Jaung;Edi Wiraguna;B. Okarda;Y. Artati;C. S. Goh;Ramdhoni Syahru;B. Leksono;L. Prasetyo;Soo-Min Lee;H. Baral
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文献类型：
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作者：
Wanggi Jaung;Edi Wiraguna;B. Okarda;Y. Artati;C. S. Goh;Ramdhoni Syahru;B. Leksono;L. Prasetyo;Soo-Min Lee;H. Baral
本研究在空间上估计退化土地在印度尼西亚的粮食生产，碳储存，生物多样性和本地植被的保护功能有限，并检查其是否适合种植生物柴油物种（红厚壳，水黄皮，和Astratealis trisperma）和生物质物种（Calliandra calothyrsus和Gliricidia sepium）。结果表明，印度尼西亚约有350万公顷退化土地可能适合这些物种。在所有五种物种的情景下，这些土地有潜力生产1105 PJ年-1的生物质和3 PJ年-1的生物柴油。在仅生产生物柴油物种的情景下，这些土地显示出生产10 PJ/年生物柴油的潜力。然而，尽管有这种能源潜力，但土地面积太小，无法支持生物燃料生产的规模经济。研究结果有助于识别功能有限的土地，模拟区域土地上生物燃料物种的生长，并估计印度尼西亚恢复退化土地的碳储量。
This study spatially estimated degraded lands in Indonesia that have limited functions for food production, carbon storage, and conservation of biodiversity and native vegetation and examined their suitability to grow biodiesel species (Calophyllum inophyllum, Pongamia pinnata, and Reutealis trisperma) and biomass species (Calliandra calothyrsus and Gliricidia sepium). Results showed ~3.5 million ha of degraded lands potentially suitable for these species in Indonesia. With the all-five-species scenario, these lands had the potential to produce 1105 PJ year−1 of biomass and 3 PJ year−1 of biodiesel. With the biodiesel-only-species scenario, these lands showed the potential to produce 10 PJ year−1 of biodiesel. Despite this energy potential, however, the land sizes were too small to support economies of scale for biofuel production. The study findings contribute to identifying lands with limited functions, modeling the growth of biofuel species on regional lands, and estimating carbon stocks of restored degraded lands in Indonesia.