中国东北中俄原油管道沿线冻土地温数据集（2011-2021）

冻土目前和未来的热状态对寒冷地区的生态系统、水文过程、碳交换和基础设施至关重要。从2011年起，我们开始在中国东北大兴安岭北麓的中俄原油管道（CRCOPs）沿线建立永久冻土监测网络。基于纬度永久冻土（SLLP）南部边界附近的气象数据、20个深度为10–60.6 m的钻孔中的地温数据、土壤体积液态水含量和二维电阻率层析成像（ERT）数据，我们编制了一个沿CRCOPs路线的地面热状态综合数据集。研究结果表明，由于气候变化，SLLP附近的永久冻土经历了显著的变暖（2011-2020年），表现为深度的永久冻土温度升高。CRCOP的施工和运行引发的局部热扰动已导致管道用地（ROW）的永久冻土显著升温和随后的解冻。这种永久冻土融化将持续下去，但可以通过采取缓解措施来缓解，如保温层和热虹吸管。现场观测数据集对于评估CRCOP线性干扰下的永久冻土可变性和相关环境影响、了解埋地管道和永久冻土地基土之间的水热机械相互作用，以及评估未来管道系统的运行和结构完整性具有重要价值。

The current and future thermal state of permafrost is critical to ecosystems, hydrological processes, carbon exchange, and infrastructure in cold regions. Since 2011, we have established a permafrost monitoring network along the China-Russia Crude Oil Pipeline (CRCOPs) at the northern foothills of the Greater Khingan Mountains in northeastern China. Based on meteorological data near the southern boundary of the latitudinal permafrost (SLLP), ground temperature data from 20 boreholes with depths ranging from 10 to 60.6 m, volumetric liquid water content of soil, and two-dimensional electrical resistivity tomography (ERT) data, we compiled a comprehensive dataset of surface thermal conditions along the route of CRCOPs. Research findings indicate that permafrost near SLLP has experienced significant warming during 2011–2020 due to climate change, manifested as elevated permafrost temperatures at various depths. Local thermal disturbances induced by the construction and operation of CRCOP have led to significant warming and subsequent thawing of permafrost in the pipeline right-of-way (ROW). This permafrost thaw will persist, but can be mitigated by adopting mitigation measures such as insulation layers and thermosyphons. This in-situ observation dataset is of great value for evaluating permafrost variability and associated environmental impacts under linear disturbances from CRCOP, understanding hydro-thermo-mechanical interactions between buried pipelines and permafrost foundation soils, and assessing the operational and structural integrity of future pipeline systems.

搜集汇总

背景与挑战

背景概述

该数据集提供了2011年至2021年中国东北中俄原油管道沿线冻土地温的日值监测数据，空间分辨率为100米至1公里，数据量约7.37 MB，可开放获取。数据集基于气象观测、钻孔地温和土壤水分等多源数据编制，揭示了因气候变化和管道工程导致的冻土显著变暖及融化趋势，对评估冻土退化、管道环境相互作用及基础设施安全具有重要科学价值。