Environmental impacts of the Yangtze Three Gorges project: An overview of the Chinese-German research cooperation

Subklew, G.; Ulrich, Julia; Fürst, L.; Höltkemeier, Agnes

doi:10.1007/s12583-010-0133-x

Cited by 18 publications

(11 citation statements)

References 9 publications

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“…Due to the management of the TGR, an artificial water level fluctuation (WLF) zone with a maximum upright fall of 30 m and an area of more than 300 km 2 Ma et al, 2012) is formed annually in the TGR area. However, the timing of the fluctuation is opposite to the natural inundation regime (Subklew et al, 2010). This shift has brought about a significant change in the habitats for vegetation in the WLF zone.…”

Section: Introductionmentioning

confidence: 93%

Revegetation in the water level fluctuation zone of a reservoir: An ideal measure to reduce the input of nutrients and sediment

Peng

Zhang

Qin

et al. 2014

Ecological Engineering

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Section: Introductionmentioning

confidence: 93%

Revegetation in the water level fluctuation zone of a reservoir: An ideal measure to reduce the input of nutrients and sediment

Peng

Zhang

Qin

et al. 2014

Ecological Engineering

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“…Based on these considerations, a framework for the integrated analysis and assessment of the ecological and geological hazard of soil erosion, landslides, and diffuse matter inputs into the reservoir due to the Yangtze River impoundment and the associated land-use changes was designed within the interdisciplinary Sino-German project 'YANGTZE-GEO' (Subklew et al 2010). The research objectives of this project are:…”

Section: Research Objectives and Study Workflowmentioning

confidence: 99%

Assessment of geo-hazards in a rapidly changing landscape: the three Gorges Reservoir Region in China

et al. 2015

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Large dam projects attract worldwide scientific attention due to their environmental impacts and socioeconomic consequences. One prominent example is the Three Gorges Dam (TGD) at the Yangtze River in China. Due to considerable resettlements, large-scale expansion of infrastructure and shifts in land use and management, the TGD project has irreversible impacts on the Upper Yangtze River Basin and strongly challenges the environmental conditions of this fast-developing region. Soil erosion and landslides are major geo-hazards. Knowing the extent and consequences of those geo-hazards for the landscape is essential to predict and evaluate their risk potential and allows for the development of strategies for a sustainable future land use in the Three Gorges Region (TGR). In this context, our research objectives are (1) to better understand the mechanisms of soil erosion, landslides, and diffuse matter fluxes in the TGR and their anthropogenic and environmental control factors, (2) to predict their hazard potential by combining spatial and temporal, scenario-driven high-resolution modeling in combination with multiscale earth observation data, and (3) to develop a multicomponent approach for the assessment and monitoring of geogene structures and processes. The paper describes the workflow of the project and introduces case studies, representing the current state of our research. It is shown that land-use changes as well as the water-level fluctuations of the reservoir are the crucial drivers for the soil erosion and landslide hazard. Furthermore, we present a framework aiming at the establishment of a monitoring and measuring network as well as an early warning system.

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“…in winter annually, which formed a huge hydro-fluctuation zone with an area of 350 km 2 and a water level fluctuation of 30 m [2,3]. The TGD had totally reversed the submergence season and increased the submergence depth and duration when compared to the original hydrological regime [4,5]. This artificial regime has totally changed the habitat of the natural vegetation.…”

Section: Introductionmentioning

confidence: 99%

Growth and Physiological Adaptation of Salix matsudana Koidz. to Periodic Submergence in the Hydro-Fluctuation Zone of the Three Gorges Dam Reservoir of China

Wang

Xie

et al. 2017

Forests

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Submergence-tolerant trees are essential for vegetation restoration of the hydro-fluctuation zone of the Three Gorges Dam Reservoir (TGDR) area. Thus, it is of great significance to select the submergence-tolerant plant species by conducting in situ studies. To restore degraded riparian vegetation under the circumstances of dynamic impoundment of the TGDR, Salix matsudana Koidz., a flooding-tolerant native tree species, was introduced to conduct an in situ practical study to test its performance in re-vegetating and restoring the hydro-fluctuation zone of the TGDR. Effects of periodic moderate submergence (MS) and deep submergence (DS) on photosynthesis and growth of Salix matsudana Koidz. were investigated after three water cycles compared to a control (i.e., shallow submergence, abbreviated as SS) in order to specifically assess its application prospects in vegetation restoration under such extreme environment. Results showed that net photosynthetic rate (P n ), intrinsic water use efficiency (WUEi) and limiting value of stomata (Ls) of S. matsudana were significantly reduced in DS. However, pigment content had no significant change in all submergence treatments. Diameter at breast height (DBH) and tree height of S. matsudana were significantly decreased in both MS and DS when compared to that of SS, respectively. In contrast, the primary branch number of S. matsudana was significantly increased as submergence increased. In addition, relative diameter and height growth rates of S. matsudana were also reduced under submergence. Considering the sustained growth of this species, S. matsudana saplings are tolerant to long-term periodic submergence and can be applied to the vegetative restoration of the hydro-fluctuation zone of the TGDR region.

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Environmental impacts of the Yangtze Three Gorges project: An overview of the Chinese-German research cooperation

Cited by 18 publications

References 9 publications

Revegetation in the water level fluctuation zone of a reservoir: An ideal measure to reduce the input of nutrients and sediment

Revegetation in the water level fluctuation zone of a reservoir: An ideal measure to reduce the input of nutrients and sediment

Assessment of geo-hazards in a rapidly changing landscape: the three Gorges Reservoir Region in China

Growth and Physiological Adaptation of Salix matsudana Koidz. to Periodic Submergence in the Hydro-Fluctuation Zone of the Three Gorges Dam Reservoir of China

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