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Discussion of the study on sustainability of land resources in Dengkou County based on emergy analysis

Author:
Chen, Dan, Zhang, Peng, Luo, Zhaohui, Cao, Xinchun, Wang, Weiguang
Source:
Journal of cleaner production 2019 v.206 pp. 724-726
ISSN:
0959-6526
Subject:
decision making, emergy, issues and policy, land resources, land use planning, pollution, water resources
Abstract:
Sustainability evaluation of land resources could help policy decision-making in land use planning and management in a region. Zhang et al. (2018) presented a study on sustainability of land resources in Dengkou County based on emergy analysis. We commented on their major shortcomings including limitations of the energy system diagram, lacks of the emergy accounting of water resources, soil losses, machinery, environmental pollution and control, and the results of dynamic simulation. It is concluded that the emergy analysis method could serve land sustainability analysis, but it is of vital importance to create normative system diagrams and select proper emergy accounting items and dynamic simulation methods for ensuring the validity of evaluation results.
Agid:
6233311