Prehistoric and historic overbank floods in the Luoyang Basin along the Luohe River, middle Yellow River basin, China

Zhang, Yuzhu; Huang, Chun Chang; Tan, Zhihai; Chen, Yinglu; Qiu, Haijun; Huang, Chang; Li, Yuqin; Zhang, Yunxiang; Liu, Xiaogang; Shulmeister, James; Patton, Nicholas R.; Liu, Lu; Zhu, Yanfeng; Wang, Ninglian

doi:10.1016/j.quaint.2019.06.023

Cited by 39 publications

(20 citation statements)

References 46 publications

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“…Accelerated expansion of construction land increased by about 129.94% in 1990-2018, exerting further pressure on land and leading to a decline in the value of ecosystem services [55,56]. Added to that, in recent years, the tourism economy has also rapidly increased.…”

Section: Discussionmentioning

confidence: 99%

Evaluation on the Change Characteristics of Ecosystem Service Function in the Northern Xinjiang Based on Land Use Change

et al. 2021

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Monitoring the interannual changes in land use and the temporal and spatial characteristics of the ecosystem services value (ESV) can help to comprehensively and objectively understand the distribution of regional ecological patterns. The mountain–oasis–desert transition zone in the northern Tianshan Mountain region of Xinjiang, China, is a geographically unique area with a highly sensitive ecosystem. As a data source, the study uses Landsat TM images from 1990, 2000, 2010, and 2018 along with GIS-extracted data to calculate the dynamic degree of land use. As well, the spatial and temporal patterns of land use change and ESV are quantitatively analyzed by using the equivalent factor method, sensitivity index, and spatial correlation studies. The results reveal the following: (1) From 1990 to 2018, the land use changes in the northern Tianshans are relatively drastic, mainly due to the increase in cultivated land, grassland and construction land, and the decrease in forest land, water, and unused land. (2) The ESV increases and then decreases, for a total loss of about 271.63 × 108 yuan. The largest decrease is in forest value, and the largest increase (around 129.94%) is in construction land. (3) The spatial distribution pattern of ESV in the northern Tianshans is apparent, showing high in the north and southwest, and low in the central and southeast portions of the study area. Additionally, there is a visible spatial correlation and aggregation in ESV. The present research can provide theoretical support for the environmental protection of the ecologically vulnerable area of the northern Tianshans as well as for further construction across the region.

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Section: Discussionmentioning

confidence: 99%

Evaluation on the Change Characteristics of Ecosystem Service Function in the Northern Xinjiang Based on Land Use Change

et al. 2021

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“…Lithostratigraphic analyses can be highly diagnostic of overbank flood events with changes in the grain-size of minerogenic sediments, usually coarsening due to high discharge energy [39,45,119,[136][137][138][139][140][141][142][143][144][145][146], and exogenic clastic layers within organic sediment profiles indicating sudden changes in depositional regime [147][148][149]. Finer-grained, sorted and well-bedded layers often represent fluvial slackwater deposits [38,43,75,140,[150][151][152][153][154][155][156][157][158][159][160].…”

Section: Recognition Of Past Hydrological Changesmentioning

confidence: 99%

“…While moderate annual seasonal Yangtze flooding has been a constant factor, introducing fine-grained minerogenic sediment into the floodplain sequence, major floods have occurred regularly throughout the Holocene, continuing into modern times [34,35], with periods during which very extreme flood events affected the Taihu lowlands as well as many other parts of the Yangtze valley [36,37]. Such extreme flooding events were not confined to the Yangtze, although the huge Yangtze catchment and river water discharge rates would exacerbate them, and have been recorded throughout eastern Asia, as in north China [38][39][40][41][42][43][44][45], Japan [46,47] and Korea [48][49][50]. As the timings of the major flooding phases in all these places correlate closely, it is clear that a regional external driver of extreme freshwater flooding has been involved, with some periods during the Holocene particularly affected.…”

Section: Introductionmentioning

confidence: 99%

History of Mid- and Late Holocene Palaeofloods in the Yangtze Coastal Lowlands, East China: Evaluation of Non-Pollen Palynomorph Evidence, Review and Synthesis

Innés

Zong

2021

Quaternary

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The surface of the lowland deltaic plain around Taihu (Lake Tai), south of the Yangtze river mouth in eastern China, lies near sea level and until recent drainage and development by human societies was mostly covered by wetlands of various types. It was created by regular overbank flooding, mainly from the Yangtze, and the deposition of mostly mineral sediments over the several millennia since sea level regained its current altitude in the early mid-Holocene and progradation of the Yangtze delta began. Fluvial activity has therefore been the dominant influence on sedimentation in the Taihu lowlands, and in the lower Yangtze valley generally, and has determined the character of the mainly inorganic sediment sequences that have accumulated there, with autochthonous deposition of organic sediments within the local wetland plant communities playing a minor role. The presence of both clastic flood horizons and peat layers within the deposits of the Taihu plain attests to great variability in the magnitude of fluvial input from the Yangtze, with repeated extreme floods occurring at some periods, but with periods when the growth of peat layers shows low water tables, little exogenic sediment input and so little fluvial influence. We have examined the published evidence for these different depositional environments in the lower Yangtze and the Taihu plain during the Holocene, comparing the flood history with the middle and upper reaches of the Yangtze catchment. Discrete phases of high or low flooding influence are recognised, and these correspond with large-scale Holocene climate history. Intensified human land use in recent millennia has complicated this relationship, amplifying the flooding signal. Our palynological research shows that algal microfossil type and abundance is a useful proxy for changing water depth and quality in the aquatic environments of the Holocene Taihu wetlands, and can recognise flooding events that are not registered in the floodplain lithological sequences.

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“…The data generated from palaeoflood hydrology are of great significance in achieving a better estimate for large events and providing an interpretation of the regional response of the hydrological system to global climatic change at longer time scales (Huang et al, 2010, 2012a, 2012b; Huang, Li, Pang, Zha, & Zhou, 2012; Huang, Pang, Zha, & Zhou, 2011; Knox, 2000; Luo et al, 2018, 2020). Previous studies have been carried out in the middle and lower reaches of the Yellow River, and its tributaries, such as the Weihe River, the Qinshuihe River, the Luohe River, and so on (Huang et al, 2010, 2011; Huang, Li, et al, 2012; Huang, Pang, et al, 2012a, 2012b; Liang, Dong, Yan, & Liu, 2020; Wan, Huang, Ge, & Pang, 2019; Xie, Shi, & Wang, 1998; Yang, Ge, Xie, Zhan, & Li, 2000; Zhang et al, 2019), the main tributaries of the Yangze River, such as the Hanjiang River, the Danjiang River (Guo et al, 2015; Huang et al, 2013; Li, Huang, Zhang, Pang, & Ma, 2020; Liu et al, 2015; Mao et al, 2016; Wang, Huang, Pang, Zha, & Zhou, 2014; Zhou et al, 2016) and the Huaihe River (Chen et al, 2017; Xie, Wang, & Wang, 2000). However, the investigations have rarely been carried out in the Yellow River source area.…”

Section: Introductionmentioning

confidence: 99%

Palaeoflood events during the last deglaciation in the Yellow River source area on the northeast Tibetan Plateau

et al. 2021

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Palaeoflood records have provided the extended perspective required to understand linkages between extreme floods and climate variability. During our palaeo‐hydrological investigations, two units of palaeoflood slackwater deposits (SWD) were found on the river banks in the Maqu‐Oula reach along the mainstream of the Yellow River on the northeast (NE) Tibetan Plateau. A series of samples were taken from the sediment profiles at Taiwuruo (TWR) and Daerqiong (DEQ) sites for laboratory analysis. Grain‐size distribution and micro‐morphological characteristics of quartz grains indicate that these well‐sorted SWD units were derived from the suspended sediment load in floodwater. They have recorded two episodes of overbank flooding in the Yellow River source area. Using the optically stimulated luminescence (OSL) dating technique, the first episode of overbank flooding was dated to 13.6–13.0 ka and correlated with the Bølling–Allerød warm interval of the last deglaciation. The second episode occurred at 11.0–10.0 ka, that is, the early Holocene. In a warm‐humid climate, these overbank flooding episodes may have resulted from the accelerated melting of mountain glaciers and snow over the headwaters of the alpine and subalpine regions on the NE Tibetan Plateau. These results are important in facilitating an in‐depth understanding of the hydro‐climatic response of the Tibetan Plateau to global climate warming occurring presently.

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Prehistoric and historic overbank floods in the Luoyang Basin along the Luohe River, middle Yellow River basin, China

Cited by 39 publications

References 46 publications

Evaluation on the Change Characteristics of Ecosystem Service Function in the Northern Xinjiang Based on Land Use Change

Evaluation on the Change Characteristics of Ecosystem Service Function in the Northern Xinjiang Based on Land Use Change

History of Mid- and Late Holocene Palaeofloods in the Yangtze Coastal Lowlands, East China: Evaluation of Non-Pollen Palynomorph Evidence, Review and Synthesis

Palaeoflood events during the last deglaciation in the Yellow River source area on the northeast Tibetan Plateau

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