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如何有效进行土壤有机碳储量估算,世界各国都做了有益地探索和研究。本文通过对比分析目前国内外土壤有机碳相关研究成果,系统总结了土壤有机碳的研究背景、研究方法、评价指标及储量等主要成果,并指出了我国在土壤有机碳储量研究方面存在的若干问题。最后提出目前需要深入的几个研究方向,包括采用大比例尺地形图,进一步提高不同海拔地块土壤碳储量估算精度,加强土壤有机碳与气候相互作用机理分析,综合分析土地利用/覆盖变化对土壤有机碳的影响,并寻求不同时空条件下土壤有机碳估算方法。
How to effectively estimate soil organic carbon reserves has benefited all countries in the world in their exploration and research. This paper systematically summarizes the research background, research methods, evaluation indexes and reserves of soil organic carbon systematically by comparing the current research results on soil organic carbon at home and abroad, and points out some problems in the study of soil organic carbon storage in China . At last, several research directions that need to be further discussed are put forward, including the use of large-scale topographic maps to further improve the estimation accuracy of soil carbon stocks at different altitudes and enhance the analysis of the interaction mechanism between soil organic carbon and climate, and to analyze the effects of land use / cover change on soil Organic carbon, and to seek ways to estimate soil organic carbon under different temporal and spatial conditions.