中国古气候与古环境数据平台（SDG）

东北黑土侵蚀速率、东北黑土退化预警及评估。空间尺度，东北黑土区表土TOC含量和黑土层厚度均由东南向西北整体增加，侵蚀速率从西部（>3 mm/年）到东部（0~3 mm/年）逐渐下降，平均值为2.22 mm/年；剖面尺度，土壤TOC含量剖面序列集成分析表明，土壤TOC含量下降至0.5%时，土壤发现明显退化。

Erosion rate of black soil in Northeast China, early warning and assessment of black soil degradation in Northeast China. At the spatial scale, the topsoil TOC content and black soil layer thickness in the black soil region of Northeast China generally increase from southeast to northwest. The erosion rate gradually decreases from the west (>3 mm/year) to the east (0–3 mm/year), with an average value of 2.22 mm/year. At the profile scale, integrated analysis of the soil TOC content profile sequence shows that when the soil TOC content drops to 0.5%, obvious soil degradation is observed.

搜集汇总

背景与挑战

背景概述

该数据集聚焦东北黑土区的侵蚀速率和土壤退化评估，提供了表土TOC含量、黑土层厚度及侵蚀速率的空间分布数据。数据以XLSX格式存储，包含4个文件，总容量4.16 MB，适用于研究东北黑土区的环境变化和土壤退化问题。