A broad overview of landscape diversity of the Yellow River source zone

Nicoll, Tami; Brierley, Gary; Yu, Guo

doi:10.1007/s11442-013-1045-3

Cited by 28 publications

(9 citation statements)

References 48 publications

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“…To date, the hydrogeomorphologic fabric of this river system does not seem to be very sensitive to indirect forms of human disturbance. Landscape disconnectivity may have minimized negative consequences of hillslope changes upon the character and behavior of river systems, and associated linkages between terrestrial and aquatic ecosystems in the low relief landscapes of this region (Nicoll, Brierley, & Yu, 2013;Poeppl, Fryirs, Tunnicliffe, & Brierley, 2020). Minimizing direct human impacts such as construction of dams, stopbanks, and gravel extraction, while reducing indirect responses to grassland and wetland degradation through land management practices (i.e., minimizing overgrazing and trampling) are the key management issues in protecting key aquatic values in this area (Li et al, 2013;Wang et al, 2011).…”

Section: Contemporary River Condition In Maqu Reachmentioning

confidence: 99%

Assessment of the geo‐eco‐hydrological condition of anabranching reaches in the Source Zone of the Yellow River, western China

Han

Brierley

2021

River Research & Apps

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A geo-eco-hydrological approach is developed and applied to assess river condition for three anabranching reaches in the Source Zone of the Yellow River. Building on principles of the River Styles Framework, attributes used to assess river condition are tailored to measure key attributes of the character and behavior for the type of river under consideration. Hydrogeomorphic process linkages with riparian vegetation function are appraised using the Fluvial Biogeomorphic Succession Model for each reach. Reference conditions incorporate measures of river geo-eco-hydrological structural integrity and functional connectivity, relating the expected "best achievable" conditions to prevailing land use practices in these grazing adapted grassland ecosystems. Contemporary conditions closely approximate expected reference conditions in hydro-geomorphic terms. While vegetation interactions function effectively in the active channel zone, they are subject to land use pressures in many floodplain areas. Minimizing impacts of direct anthropogenic disturbance, while promoting passive management practices that support self-sustaining processes, are considered to offer the best prospect to maintain good river condition in these reaches. Major commitment to environmental protection in this area makes this a realistic possibility.The generic approach to analysis of geo-eco-hydrological condition is readily transferable to other situations.

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Section: Contemporary River Condition In Maqu Reachmentioning

confidence: 99%

Assessment of the geo‐eco‐hydrological condition of anabranching reaches in the Source Zone of the Yellow River, western China

Han

Brierley

2021

River Research & Apps

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“…Within Qinghai Province, knickpoint retreat by the Upper Yellow River has cut through 1 km thick sediment sequences laid down within a previously inland-draining basin at Guide (2217 m asl) (Nicoll and Brierley, 2018). The knickpoint is presently located downstream of an equivalent basin fill at Ruoergai/Maqu (Nicoll et al, 2013). Anabranching reaches of the Upper Yellow River at Dari and Maduo lie upstream of these basins (Li et al, 2013;Yu et al, 2014).…”

Section: Regional Settingmentioning

confidence: 99%

Channel geomorphology and riparian vegetation interactions along four anabranching reaches of the Upper Yellow River

Han¹,

Brierley

2020

Progress in Physical Geography: Earth and Environment

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The fluvial biogeomorphic succession (FBS) phase model is used to appraise biogeomorphic interactions along four anabranching reaches of the Upper Yellow River. Geomorphic features and vegetation distribution patterns are combined to assess the dominant FBS phase. A notable increase in shrub and tree cover and a decrease in sedges occur with decreasing elevation from 4200 to 2200 m asl. The Maduo reach (4185 m) is characterized by the biogeomorphic phase, while the Dari (3960 m) reach is at the pioneer phase, with short shrubs playing a prominent role. Both the Maqu (3450 m) and the Guide (2117 m) reaches are ecological phase dominated (the Guide reach has been impacted by flow regulation in recent decades). Reaches other than the Maduo have experienced an increase in post-pioneer vegetation (woody plants) in recent decades, with a decrease in pioneer plant communities (grass and sedges). The Dari reach experienced the most dynamic channel planform changes, with a marked increase in short shrub patches from 2007 to 2017. An increase in woody vegetation underpinned increasingly stable geomorphic dynamics in the Maqu reach. Human activities have restricted geomorphic impacts of expanded areas of woody riparian vegetation in the Guide reach. Variability in dominant FBS phases exerts a primary control upon channel behavior and evolutionary traits in the four study reaches.

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“…The Yellow River Source Basin is rich in water resources and there are a large number of plateau lakes and wetlands. The Zaling and Erling lakes are the highest freshwater lakes in China [43].…”

Section: Study Areamentioning

confidence: 99%

Evaluation and Hydrological Simulation of CMADS and CFSR Reanalysis Datasets in the Qinghai-Tibet Plateau

Jun

Shanguan

Liu

et al. 2018

Water

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Multisource reanalysis datasets provide an effective way to help us understand hydrological processes in inland alpine regions with sparsely distributed weather stations. The accuracy and quality of two widely used datasets, the China Meteorological Assimilation Driving Datasets to force the SWAT model (CMADS), and the Climate Forecast System Reanalysis (CFSR) in the Qinghai-Tibet Plateau (TP), were evaluated in this paper. The accuracy of daily precipitation, max/min temperature, relative humidity and wind speed from CMADS and CFSR are firstly evaluated by comparing them with results obtained from 131 meteorological stations in the TP. Statistical results show that most elements of CMADS are superior to those of CFSR. The average correlation coefficient (R) between the maximum temperature and the minimum temperature of CMADS and CFSR ranged from 0.93 to 0.97. The root mean square error (RMSE) for CMADS and CFSR ranged from 3.16 to 3.18 °C, and ranged from 5.19 °C to 8.14 °C respectively. The average R of precipitation, relative humidity, and wind speed for CMADS are 0.46; 0.88 and 0.64 respectively, while they are 0.43, 0.52, and 0.37 for CFSR. Gridded observation data is obtained using the professional interpolation software, ANUSPLIN. Meteorological elements from three gridded data have a similar overall distribution but have a different partial distribution. The Soil and Water Assessment Tool (SWAT) is used to simulate hydrological processes in the Yellow River Source Basin of the TP. The Nash Sutcliffe coefficients (NSE) of CMADS+SWAT in calibration and validation period are 0.78 and 0.68 for the monthly scale respectively, which are better than those of CFSR+SWAT and OBS+SWAT in the Yellow River Source Basin. The relationship between snowmelt and other variables is measured by GeoDetector. Air temperature, soil moisture, and soil temperature at 1.038 m has a greater influence on snowmelt than others.

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A broad overview of landscape diversity of the Yellow River source zone

Cited by 28 publications

References 48 publications

Assessment of the geo‐eco‐hydrological condition of anabranching reaches in the Source Zone of the Yellow River, western China

Assessment of the geo‐eco‐hydrological condition of anabranching reaches in the Source Zone of the Yellow River, western China

Channel geomorphology and riparian vegetation interactions along four anabranching reaches of the Upper Yellow River

Evaluation and Hydrological Simulation of CMADS and CFSR Reanalysis Datasets in the Qinghai-Tibet Plateau

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