资源环境科技发展态势分析平台

The demand for land exploitation to accommodate increasing population in metropolis is escalating worldwide. The unprecedented Mountain Excavation and City Construction project in the hilly-gully Loess Plateau of China is a crustal surgery to seek the balance between urbanization and sustainability in the forerunner Yan’an city. Here we rely on multi-source remote sensing imagery to characterize the contemporary anthropogenic modification of the loess landscape. The topography has been reshaped with ±80-m elevation changes and 1.28×10⁸-m³ mass transfer by 2015. The subsidence rates at up to ∼70 mm/yr during 2014-2020 are proportional to the amount of the filling mass, which is expected to reach stabilization by 2030. Hundreds-of-kilopascal stress changes are distributed in the shallow zone due to the mass transfer. Continuous monitoring is an integral part of hazard mitigation in this naturally landslide hazard-prone loess environment.