China’s Hydropower Resources and Development

Xiao, Ling; Wang, Jing; Wang, Binglin; Jiang, He

doi:10.3390/su15053940

Cited by 15 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydropower stations are important livelihood projects that capture water flow to generate electricity in an environmentally friendly way [1,2]. They also play a role in regulating water levels and flows, rendering them essential for energy supply and economic development purposes [3,4].…”

Section: Introductionmentioning

confidence: 99%

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

Luo,

Jiang,

et al. 2024

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

View full text Add to dashboard Cite

Obtaining comprehensive and accurate terrain data is important for engineering construction. Unmanned aerial vehicle (UAV) photogrammetry and terrestrial laser scanning (TLS) are two widely used terrain modeling techniques. In mountainous areas, both techniques suffer limitations. These limitations occur in uninhabited areas, primarily caused by the steep terrain and inconvenient transportation conditions, resulting in poor data integrity and inadequate accuracy in UAV and TLS terrain mapping. In this article, we proposed a fusion modeling method based on UAV photogrammetry and TLS for high-precision terrain mapping in mountainous and canyon areas. The proposed method entails the use of TLS data to provide additional control points for UAV modeling, resulting in an improved accuracy of the modeling results. In addition, to quantify the optimization effect of this method, we proposed a 3D model deviation comparison method based on the iterative closest point (ICP) algorithm. This method can be employed to accurately depict the differences in distance and rotation angle between multiple terrain models. We applied this method to the Yebatan hydropower station in Southwest China, which increased the accuracy of the terrain data by 26% and expanded the effective range by over 100%.

show abstract

Section: Introductionmentioning

confidence: 99%

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

Luo,

Jiang,

et al. 2024

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

View full text Add to dashboard Cite

show abstract

“…While much of this is hydropower on domestic rivers, some of China's dams are linked with transboundary basins, including the Heilong-Amur, Lancang-Mekong, Nu-Salween, and the Yaluzangbu-Brahmaputra. These border regions have significant transboundary hydropower potential that has yet to be exploited (Xiao et al, 2023;Xu et al, 2023). Transboundary waters shared across national borders are governed by the rules of international law that apply in this area-primarily rules of treaty and customary law, many of which are codified and progressively developed in the two global water conventions-the 1992 Convention on the Protection and Use of Transboundary Watercourses and International Lakes (Water Convention, 1992), and the 1997 Convention on the Law of the Non-navigational Uses of International Watercourses (Watercourses Convention).…”

Section: Introductionmentioning

confidence: 99%

China's transboundary hydropower development at home and abroad: exploring the regulatory interface between international water law and international economic law

Wouters,

Daza-Clark,

Devlaeminck

2024

Front. Clim.

View full text Add to dashboard Cite

China, located upstream on most of the major transboundary waters shared with vast populations across Asia, is heavily invested in developing hydropower at home and abroad. Some of this hydropower development involves freshwaters that cross national borders raising complex issues in international law, a situation exacerbated by growing economic, environmental, and regional security pressures. In such a context, where conflicts-of-use are almost certain to arise, it is essential to understand the rules that apply so as to enhance opportunities for enhanced transboundary water cooperation. This paper examines the rules of international water law and international economic law that apply to transboundary hydropower development, with a focus on China as one of the key actors in this field. The aim is to examine the regulatory interface of relevant legal frameworks with a focus on China's approach to transboundary hydropower development at home and abroad. While international economic—and more specifically international investment law—is not directly concerned with international water law, host states and foreign investors must be informed, and take into account, the legal obligations governing transboundary waters. China's position as a major water user (at home) and significant investor (abroad) on transboundary waters, makes it a unique case study for exploring the rules of international law that apply in two different regulatory settings. The work examines the rules of law in each of these domains and reveals the inapparent linkages across these seemingly unconnected areas of international regulation.

show abstract

“…The tree-ring is a useful tool to detect the growth-climate relationship due to its accurate dating of radial growth and ability to reflect climate change [4]. The response varies with locations [5], which is more sensitive and complex in some places, such as southwestern China, in which the ecosystem is vulnerable [6] and hydropower development are more intensive [7]. However, it remains unknown whether the radial growth of trees has a common response pattern to the regional climate in the valleys in southwestern China.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, intensive hydropower development exerts another pressure on the vulnerable nature. Southwestern China has the largest hydropower resources in China [7]. More than 40 large hydroelectric stations have been constructed.…”

Section: Introductionmentioning

confidence: 99%

Tree Radial Growth Responses to Climate and Reservoir Impoundment in Valleys in Southwestern China

Sun,

Ding,

Zhou

et al. 2024

Forests

View full text Add to dashboard Cite

Southwestern China is a critical biodiversity hotspot area, and many large hydroelectric projects have been established in the valleys in the region. Tree growth in the valleys will be affected by both regional climate and reservoir impoundment. However, it remains unknown whether the radial growth of trees in the valleys has a common response pattern to the regional climate, and it is also unclear whether the response of radial growth to reservoir impoundment can be detected. In this study, we developed tree-ring width chronologies of Pinus yunnanensis Franch. collected at 11 sites with vertical and horizontal gradients to three hydroelectric reservoirs in three riverine valleys in southwestern China. We analyzed the radial growth responses to the regional climate from 1986 to 2017 by correlation with instrumental meteorological data. Tree growth responses to reservoir impoundment were investigated through spatial and temporal comparisons using the change in the Euclidean distance and difference test. We also distinguished their responses at tree-ring sites without influenced by reservoir impoundment including two sites in the valleys and seven sites at high elevations. The results showed that the climate conditions in May and the dry season before the growth season significantly limit the radial growth in the valleys, which is different to that at high-elevation areas in southwestern China. Growth variations in the valleys are related to elevations and the trees in similar slopes positions exhibit similar responses. For trees in the low slope positions, both variance and mean values of radial growth are affected by reservoir impoundment. Trees at relatively low sites (i.e., sites M2, R2, L2), rather than the trees close to the reservoirs (i.e., sites M1, R1, L1), respond more sensitively to reservoir impoundment.

show abstract

China’s Hydropower Resources and Development

Cited by 15 publications

References 25 publications

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

China's transboundary hydropower development at home and abroad: exploring the regulatory interface between international water law and international economic law

Tree Radial Growth Responses to Climate and Reservoir Impoundment in Valleys in Southwestern China

Contact Info

Product

Resources

About