scholarly journals Loess Plateau storage of Northeastern Tibetan Plateau-derived Yellow River sediment

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Junsheng Nie ◽  
Thomas Stevens ◽  
Martin Rittner ◽  
Daniel Stockli ◽  
Eduardo Garzanti ◽  
...  
Keyword(s):  
Loess Plateau ◽  
Yellow River ◽  
Chinese Loess Plateau ◽  
Late Cenozoic ◽  
Erosion And Deposition ◽  
Mu Us Desert ◽  
Chinese Loess ◽  
Marine Geochemistry ◽  
Orogenic Belts ◽  
The Chinese Loess Plateau

Abstract Marine accumulations of terrigenous sediment are widely assumed to accurately record climatic- and tectonic-controlled mountain denudation and play an important role in understanding late Cenozoic mountain uplift and global cooling. Underpinning this is the assumption that the majority of sediment eroded from hinterland orogenic belts is transported to and ultimately stored in marine basins with little lag between erosion and deposition. Here we use a detailed and multi-technique sedimentary provenance dataset from the Yellow River to show that substantial amounts of sediment eroded from Northeast Tibet and carried by the river’s upper reach are stored in the Chinese Loess Plateau and the western Mu Us desert. This finding revises our understanding of the origin of the Chinese Loess Plateau and provides a potential solution for mismatches between late Cenozoic terrestrial sedimentation and marine geochemistry records, as well as between global CO2 and erosion records.

Genetic linkage between the Yellow River, the Mu Us desert and the Chinese Loess Plateau

2013 ◽  
Vol 78 ◽  
pp. 355-368 ◽  
Author(s):  
T. Stevens ◽  
A. Carter ◽  
T.P. Watson ◽  
P. Vermeesch ◽  
S. Andò ◽  
...  
Keyword(s):  
Loess Plateau ◽  
Genetic Linkage ◽  
Yellow River ◽  
Chinese Loess Plateau ◽  
The Yellow River ◽  
Mu Us Desert ◽  
Chinese Loess ◽  
The Chinese Loess Plateau

Geochemical and grain-size evidence for the provenance of loess deposits in the Central Shandong Mountains region, northern China

2016 ◽  
Vol 85 (2) ◽  
pp. 290-298 ◽  
Author(s):  
Shuzhen Peng ◽  
Qingzhen Hao ◽  
Luo Wang ◽  
Min Ding ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Grain Size ◽  
Loess Plateau ◽  
Major Element ◽  
Yellow River ◽  
Northern China ◽  
Chinese Loess Plateau ◽  
The Yellow River ◽  
Chinese Loess ◽  
Loess Deposits ◽  
The Chinese Loess Plateau

Widespread loess deposits in the Central Shandong Mountains yield valuable paleoclimatic records for this currently semi-humid monsoonal region of northern China. The grain-size distribution and major element composition for bulk samples and two grain-size fractions (< 20 and 20–63 μm) for the loess in the Central Shandong Mountains were compared with loess from the Chinese Loess Plateau and sediment from the Yellow River to help determine its provenance. The presence of a significant percentage of medium- and coarse-silt, and the difference in relatively immobile major element ratios of TiO2/Al2O3 and K2O/Al2O3 for the < 20 and 20–63 μm fractions, suggests that sediment that forms the loess deposits in the Central Shandong Mountains was not blown directly from the northern deserts of China as is the case for the loess deposits of the Chinese Loess Plateau. Rather, this suggests that sediments exposed during glacial times on the North China fluvial plain, including the floodplain of the Yellow River, were the major dust source for the loess in the Central Shangong Mountains. In addition, the wide distribution of perimontane loess in the Central Shandong Mountains region indicates the occurrence of strengthened local aridification during glacial times since the middle Pleistocene.

Binary sources of loess on the Chinese Loess Plateau revealed by U–Pb ages of zircon

2013 ◽  
Vol 80 (3) ◽  
pp. 545-551 ◽  
Author(s):  
Xudong Che ◽  
Gaojun Li
Keyword(s):  
Loess Plateau ◽  
Yellow River ◽  
Age Distribution ◽  
Chinese Loess Plateau ◽  
Chinese Loess ◽  
The North ◽  
Altay Mountains ◽  
Westerly Winds ◽  
Better Than ◽  
The Chinese Loess Plateau

The age distribution of detrital zircon has been used to trace sediment sources. Existing datasets show great similarity of zircon ages between the loess on the Chinese Loess Plateau (CLP) and the sediments from the North Tibetan Plateau (NTP), implying that eolian dust is delivered from the NTP to the CLP by westerly winds or via the Yellow River. However, NTP dust can also be transported by northwesterly winds from the Alxa arid lands (AALs), where materials are received from both the NTP and the Gobi Altay Mountains (GAMs). Here we report U–Pb zircon ages for AALs sands and NTP and CLP loess. The results show that the zircons in the AALs are mixed from NTP and GAMs zircons. NTP loess is mainly derived from local sources. Mixing of materials from the NTP and GAMs defines the zircon ages of the loess on the CLP better than the pure NTP source. No temporal and spatial heterogeneities of zircon ages have been observed for the loess on the CLP, which suggests that the well-mixed materials in the AALs likely have an eolian source.

scholarly journals Changes in soil water holding capacity and water availability following vegetation restoration on the Chinese Loess Plateau

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yong-wang Zhang ◽  
Kai-bo Wang ◽  
Jun Wang ◽  
Changhai Liu ◽  
Zhou-ping Shangguan
Keyword(s):  
Land Use ◽  
Soil Water ◽  
Loess Plateau ◽  
Soil Layer ◽  
Soil Physical Properties ◽  
Chinese Loess Plateau ◽  
Land Use Type ◽  
Chinese Loess ◽  
Water Holding ◽  
The Chinese Loess Plateau

AbstractChanges in land use type can lead to variations in soil water characteristics. The objective of this study was to identify the responses of soil water holding capacity (SWHC) and soil water availability (SWA) to land use type (grassland, shrubland and forestland). The soil water characteristic curve describes the relationship between gravimetric water content and soil suction. We measured the soil water characteristic parameters representing SWHC and SWA, which we derived from soil water characteristic curves, in the 0–50 cm soil layer at sites representing three land use types in the Ziwuling forest region, located in the central part of the Loess Plateau, China. Our results showed that the SWHC was higher at the woodland site than the grassland and shrubland, and there was no significant difference between the latter two sites, the trend of SWA was similar to the SWHC. From grassland to woodland, the soil physical properties in the 0–50 cm soil layer partially improved, BD was significantly higher at the grassland site than at the shrubland and woodland sites, the clay and silt contents decreased significantly from grassland to shrubland to woodland and sand content showed the opposite pattern, the soil porosity was higher in the shrubland and woodland than that in the grassland, the soil physical properties across the 0–50 cm soil layer improved. Soil texture, porosity and bulk density were the key factors affecting SWHC and SWA. The results of this study provide insight into the effects of vegetation restoration on local hydrological resources and can inform soil water management and land use planning on the Chinese Loess Plateau.

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