scholarly journals Experiments on the Control of Salinity and Sodicity in Surface-Irrigated Fields in the Upper Yellow River Valley (IV) : Tools for Analysing Soil Salinity and Sodicity and Related Properties of the Field Soils

10.5109/12870 ◽  
2008 ◽  
Vol 53 (2) ◽  
pp. 535-541
Author(s):  
Tetsuo Kobayashi ◽  
Daisuke Yasutake ◽  
Yueru Wu ◽  
Kazuki Urayama ◽  
Kenta Tagawa ◽  
...  
Keyword(s):  
Soil Salinity ◽  
Yellow River ◽  
River Valley ◽  
Yellow River Valley ◽  
Field Soils ◽  
Upper Yellow River

Prehistoric human activity and its environmental background in Lake Donggi Cona basin, northeastern Tibetan Plateau

The Holocene ◽  
2020 ◽  
Vol 30 (5) ◽  
pp. 657-671 ◽  
Author(s):  
Jingyi Gao ◽  
Guangliang Hou ◽  
Haicheng Wei ◽  
Youcheng Chen ◽  
Chongyi E ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Tibetan Plateau ◽  
Yellow River ◽  
River Valley ◽  
Osl Dating ◽  
Lower Altitude ◽  
Stone Artifacts ◽  
Yellow River Valley ◽  
Upper Yellow River ◽  
The Impact

Lake Donggi Cona is a key area for the exploration of the prehistoric settlement of the inner Tibetan Plateau because of its location in the joint of the higher inner Tibetan Plateau and the upper Yellow River valley. Here, we carried out archeological investigation on the lake basin, and a total of 256 pieces of stone artifacts were collected from the surface of the DJCN 3-2-2 site on the northern shore terraces of the lake. In addition, AMS14C and OSL dating were performed on hearths and section (DJCN 3-2-2), respectively; meanwhile environmental proxies, including grain size, charcoal, magnetic susceptibility, fungal spore, and pollen, were analyzed. The results indicate that the AMS14C ages of the charcoal range between ~5.4 and 5.0 cal. ka BP, consistent with OSL dating from the charcoal layers in the DJCN 3-2-2 section (~5.5 ka BP). The functional analysis of the stone artifacts and dating results showed that the site was a seasonal, relative long-term, and central camp which was used for processing of stone artifacts, cutting and consuming food and the production of daily necessities. Charcoal, magnetic susceptibility, and fungal spores from the DJCN 3-2-2 section revealed that prehistoric human activities began at ~5.8 ka BP and significantly intensified during the period of ~5.6–5.5 ka BP and then gradually weakened. Pollen assemblages indicated that the vegetation was dominated by alpine steppe during the period of ~5.8–5.0 ka BP, indicative of a relatively warmer and wetter climatic condition during this period. Taken together, we infer that under the impact of the Neolithic culture in lower altitude of upper Yellow River valley and Microlithic culture in the higher altitude inner Plateau, a Neolithic-Zongri culture had emerged in the transitional region between these two cultures during middle Holocene.

A luminescence dating study of the sediment stratigraphy of the Lajia Ruins in the upper Yellow River valley, China

2014 ◽  
Vol 87 ◽  
pp. 157-164 ◽  
Author(s):  
Yuzhu Zhang ◽  
Chun Chang Huang ◽  
Jiangli Pang ◽  
Yali Zhou ◽  
Xiaochun Zha ◽  
...  
Keyword(s):  
Yellow River ◽  
River Valley ◽  
Luminescence Dating ◽  
Yellow River Valley ◽  
Sediment Stratigraphy ◽  
Upper Yellow River

scholarly journals Experiments on the Control of Salinity and Sodicity in Surface : Irrigated Fields in the Upper Yellow River Valley (I)

10.5109/10100 ◽  
2008 ◽  
Vol 53 (1) ◽  
pp. 251-256 ◽  
Author(s):  
Weizhen Wang ◽  
Tetsuo Kobayashi ◽  
Daisuke Yasutake ◽  
Masaharu Kitano ◽  
Hiroyuki Cho ◽  
...  
Keyword(s):  
Yellow River ◽  
River Valley ◽  
Yellow River Valley ◽  
Upper Yellow River

scholarly journals Experiments on the Control of Salinity and Sodicity in Surface : Irrigated Fields in the Upper Yellow River Valley (III)

10.5109/10102 ◽  
2008 ◽  
Vol 53 (1) ◽  
pp. 265-270
Author(s):  
Daisuke Yasutake ◽  
Takuya Araki ◽  
Masaharu Kitano ◽  
Weizhen Wang ◽  
Kazuki Urayama ◽  
...  
Keyword(s):  
Yellow River ◽  
River Valley ◽  
Yellow River Valley ◽  
Upper Yellow River

scholarly journals Experiments on the Control of Salinity and Sodicity in Surface : Irrigated Fields in the Upper Yellow River Valley (II)

10.5109/10101 ◽  
2008 ◽  
Vol 53 (1) ◽  
pp. 257-263
Author(s):  
Hisashi Yoshikoshi ◽  
Weizhen Wang ◽  
Hiroyuki Cho ◽  
Takuya Araki ◽  
Daisuke Yasutake ◽  
...  
Keyword(s):  
Yellow River ◽  
River Valley ◽  
Yellow River Valley ◽  
Upper Yellow River

Ancient landslide-dam events in the Jishi Gorge, upper Yellow River valley, China

2014 ◽  
Vol 81 (3) ◽  
pp. 445-451 ◽  
Author(s):  
Guanghui Dong ◽  
Fanyu Zhang ◽  
Minmin Ma ◽  
Yuxin Fan ◽  
Jiawu Zhang ◽  
...  
Keyword(s):  
Yellow River ◽  
Lacustrine Sediments ◽  
Landslide Dam ◽  
River Valley ◽  
Radiocarbon Dates ◽  
Ancient Landslide ◽  
Yellow River Valley ◽  
Upper Yellow River ◽  
Dammed Lake ◽  
Guanting Basin

AbstractSome scholars have argued that the formation and outburst of an ancient dammed lake in the Jishi Gorge at ca. 3700 cal yr BP resulted in the destruction of Lajia, the site of a famous prehistoric disaster in the Guanting Basin, upper Yellow River valley, China. However, the cause of the dammed lake and the exact age of the dam breaching are still debated. We investigated ancient landslides and evidence for the dammed lake in the Jishi Gorge, including dating of soil from the shear zone of an ancient landslide, sediments of the ancient dammed lake, and loess above lacustrine sediments using radiocarbon and optically stimulated luminescence (OSL) dating methods. Six radiocarbon dates and two OSL dates suggested that the ancient landslides and dammed lake events in the Jishi Gorge probably occurred around 8100 cal yr BP, and the ancient dammed lake was breached between 6780 cal yr BP and 5750 cal yr BP. Hence, the outburst of the ancient dammed lake in the Jishi Gorge was unrelated to the ruin of the Lajia site, but likely resulted in flood disasters in the Guanting Basin around 6500 cal yr BP.

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