نتایج جستجو برای: loess plateau
تعداد نتایج: 27834 فیلتر نتایج به سال:
The Chinese Loess Plateau (CLP) is the largest loess deposit on Earth with expansive surface-exposed source rocks of varying origins, ages, and history. Here, we present abundances elements representative palaeosol samples from seven classic sections CLP. Most elements, including soluble (e.g. Rb Cs), show significant correlations La or Al2O3. These indicate that these are hosted absorbed in pa...
The red-clay sequence on the Chinese Loess Plateau (CLP) was deposited during the late Miocene-Pliocene and is encoded with important information of past climate changes. However, it has received much less study in comparison to the overlying Pleistocene loess-paleosol sequence. In this paper, we review recent progress in characterizing the environmental magnetic parameter-based paleoclimate hi...
Magnetic paleoclimatic records often represent mixed environmental signals. Unmixing these signals may improve our understanding of the paleoenvironmental information contained within these records, but such a task is challenging. Here we report an example of numerical unmixing of magnetic hysteresis data obtained from Chinese loess and red clay sequences. We find that the mixed magnetic assemb...
Abbreviations: C, carbon; N, nitrogen; BD, soil bulk d mass; BGB, belowground biomass; SL, semi-decomposit carbon pool;Np, soil nitrogenpool; SOC, soil organic carbo content; FG, fenced grassland with grazing exclusion; GG index; H, Shannon–Wiener diversity index; E, Evenness in ⁎ Corresponding author at: State Key Laboratory of Soil E the Loess Plateau, Institute of Soil and Water Conservati Y...
Monitoring the surface deformation over the loess hills could help us understand the dynamics of soil erosion, the extent of anthropogenic impacts, and the mitigation methods for the potential damage to local ecosystems, agricultural production, socioeconomic infrastructure, water quality, and air quality in the Loess Plateau and the surrounding areas. The objectives of this study were to compr...
Intensive research on China’s Western Loess Plateau has located 63 Palaeolithic deposits, which together allow the authors to present a general model of hominin occupation from 80 000 to 18 000 years ago. Tools, subsistence and settlement correlate nicely with the climate: the warm wet MIS3 seeing expansion and more organised acquisition of quartz, and the Late Glacial Maximum that followed, a ...
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