中国土地利用碳排放的研究误区和未来趋向

Misunderstandings and Future Trends of Researches on Land Use Carbon Emissions in China

研究目的:分析当前中国土地利用碳排放研究中存在的误区,并提出基于土地科学视角的该领域整合研究的设想。研究方法:基于文献调查和回顾,对中国土地利用碳排放的研究进行了总结和回顾。研究结果:当前研究在碳收支研究参数的选择、研究尺度的匹配、土地利用空间布局方案、土地利用生命周期碳排放核算及综合研究等方面还存在一些误区,这制约了土地利用碳排放研究的进一步深化。研究结论:土地科学在区域碳排放研究中具有综合研究的优势和特色,应考虑从土地科学学科体系的角度构建土地利用碳排放研究的整体框架和方法体系,并开展区域示范研究;并进一步加强基于地块尺度的"自然-社会"二元碳收支的综合集成及土地利用全生命周期过程的碳排放效率研究。

The purpose of this paper is to analyze the misunderstandings in the research on land use carbon emission, and to put forward the idea of comprehensive research on low-carbon studies from the perspective of land discipline. Methods of literature review and analysis were used to summarize the research on land use carbon emission of China in recent years. The results indicated that there existed some misunderstandings and shortcomings in the selection of carbon budget parameters, the matching of different research scales, land use spatial distribution patterns, carbon emission estimation of land use life cycle and the comprehensive studies of land use carbon emission. All these restricted the depth of research on land use carbon emission. In conclusion, land discipline has its own comprehensive advantages in regional carbon emission studies. Therefore, the integrated framework and method system of land use carbon emission should be established and we should conduct regional level research from the view of land discipline in the future. Further, the research on natural-social dualistic carbon budget and carbon efficiency of land use life cycle should also be strengthened.