Jichun Wu

TL;DR: In this paper, a new permafrost map based on freezing and thawing indices from modified MODIS land surface temperatures (LSTs) was generated and validated using various ground-based data sets.

TL;DR: The results indicated that the nutrient limitation in alpine ecosystem might shifts from N-limited to P-limited or K-limited due to the increase of N deposition and decrease of soil P and K contents under the changing climate conditions and weathering stages, and suggested that soil moisture and mud content could be good predictors of topsoil nutrient stoichiometry in Tibetan grassland.

TL;DR: Based on the numerical simulation, the process of permafrost degradation can be divided into five stages, i.e., starting stage, temperature rising stage, zero geothermal gradient stage, talic layers stage, and disappearing stage, according to the shape of ground temperature profile as mentioned in this paper.

TL;DR: In this paper, the authors classified the Yellow River (SAYR) landforms into seven basic types, based on their morphological characteristics and genesis, and further divided into 12 sub-classes based on geomorphic processes.

TL;DR: In this article, a transportation corridor, located in the northeastern Qinghai province of China, and passing through the Qilianshan high-mountain permafrost area is investigated.