Identification of potential areas for biomass production in China: Discussion of a recent approach and future challenges |
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Authors: | Wilko Schweers Zhanguo BaiElliott Campbell Klaus HennenbergUwe Fritsche Heinz-Peter MangMario Lucas Zifu LiAndrew Scanlon Haoran ChenQin Zhihao Dianxiong CaiYunxiang Jin Jun ZhangLili Tu Marco GemmerTong Jiang Nannan Zhang |
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Affiliation: | a Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, No. 12 Zhongguancun Nan Dajie, 100081 Beijing, China b ISRIC, World Soil Information, Box 353, 6700 AJ Wageningen, The Netherlands c Department of Global Ecology, Carnegie Institution, Stanford, CA 94305, USA d Institute of Applied Ecology, 64295 Darmstadt, Germany e University of Science and Technology, 100083 Beijing, China f Jiuzhaigou National Park Administration, 623400 Aba Prefecture, Sichuan, China g School of Geographic and Oceanographic Sciences, Nanjing University, 210093 Nanjing, Jiangsu, China h National Climate Centre, China Meteorological Administration, 100081 Beijing, China i Centre for Geoinformation, Wageningen University, The Netherlands |
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Abstract: | A standard methodology is needed to recognize potentially suitable areas for sustainable bioenergy crop production. This facilitates better identification of promising crops and cropping systems, logistical and economic studies, and work needed to meet regulatory criteria. A possible approach is built upon three layers of internationally available spatial data: (1) degrading and abandoned areas, (2) potentially suitable land cover classes, (3) exclusion zones such as nature reserves and areas of high biodiversity. For China, areas identified as potentially suitable range from 1.2 to 6.0% of the national territory, depending on different levels of statistical confidence in degrading area status and allowable limits of terrestrial carbon. Verification on the ground showed that about 60% of points tested conformed to the remote suitability assessment in the scenario, which represents the results for the combination of all degrading areas and a terrestrial carbon stock limit of 200 t ha−1. A top-down approach is useful in framing potentially suitable locations, but a complementary bottom-up analysis is still required to ultimately identify areas for sustainable bio-fuel production. |
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Keywords: | Bioenergy crops Land suitability Remote sensing Ground truth Biodiversity China |
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