Service Quality Management of Scenic Spot Based on Tourists\u27 Experience--Taking the Three Gorges Dam 5A Scenic Area for Example

Based on the perspective of tourists, the paper takes the empirical analysis of service quality of the three gorges dam scenic spot, tries to put forward some methods to improve service quality, and provide the reference for the tourism sustainable optimization development of the three gorges dam

Impact of the Three Gorges Dam

The Three Gorges Dam was built to provide hydroelectric power, flood control, and greater navigation access to the Yangtze River in central China. It is the largest hydroelectric dam in the world and as such is responsible for bringing both unprecedented benefits and risks to the people of the Yangtze River Valley and all of China. In some cases the dam has been the cause of great devastation including the destruction of both the environment and rich cultural heritage of the Yangtze River valley, but it has also spurred a greater concern for the protection and conservation of both the environment and the way of life for many of the Chinese people. While many of the consequences of the dam will not be felt for many years, both the Chinese and the world will be looking to the dam as an example of the future feasibility of hydroelectric power. This paper analyzes the drawbacks of constructing such an enormous dam as well as the benefits

Three Gorges Dam, China

Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.Includes bibliographical references (leaf 66).by Elizabeth W. Craun.M.Eng

The Three Gorges Dam

In their ambitious book Empires of Food, authors Evan D.G. Fraser and Andrew Rimas take on a huge topic: the cause-and-effect relationship between food systems, societies and governments or, as they phrase it in the book’s subtitle, “feast, famine and the rise and fall of civilizations.” This is historical context as well as advice for college students, who have only a vague idea of where food comes from. One valuable aspect of their writing is the ease with which they move from science to sociology to history to commerce. In a series of specific episodes, they show how the management of food production has both empowered and doomed empires. A second attribute of this work is its present-mindedness, not so much a warning as an explanation of what is happening today in the taxed-to-the-limits global food network, and what is likely to happen tomorrow. I find that few class assignments gain traction with my cadets unless I can show that it can contribute to their immediate well-being and future prospects, both career and happiness. The topic of food certainly grabs their attention; this is information that our students need as they make decisions about the food they eat. For me, food is a rich classroom topic to teach because it is so immediate. What you had for lunch (and where it came from), working in a restaurant (every class has students with vivid experiences of this), articles on health care, obesity studies, students’ eating habits, differences in families and what they cook, films like Fast Food Nation – there are so many solid critical thinking and writing assignments which can connect to this one

The Three Gorges Dam Affects Regional Precipitation

Issues regarding building large-scale dams as a solution to power generation and flood control problems have been widely discussed by both natural and social scientists from various disciplines, as well as the policy-makers and public. Since the Chinese government officially approved the Three Gorges Dam (TGD) projects, this largest hydroelectric project in the world has drawn a lot of debates ranging from its social and economic to climatic impacts. The TGD has been partially in use since June 2003. The impact of the TGD is examined through analysis of the National Aeronautics and Space Administration (NASA) Tropical Rainfall Measuring Mission (TRMM) rainfall rate and Moderate Resolution Imaging Spectroradiometer (MODIS) land surface temperature and high-resolution simulation using the Pennsylvania State University-National Center for Atmospheric Research (PSU-NCAR) fifth-generation Mesoscale Model (MM5). The independent satellite data sets and numerical simulation clearly indicate that the land use change associated with the TGD construction has increased the precipitation in the region between Daba and Qinling mountains and reduced the precipitation in the vicinity of the TGD after the TGD water level abruptly rose from 66 to 135 m in June 2003. This study suggests that the climatic effect of the TGD is on the regional scale (approx.100 km) rather than on the local scale (approx.10 km) as projected in previous studies

Remotely sensed mid-channel bar dynamics in downstream of the Three Gorges Dam, China

The downstream reach of the Three Gorges Dam (TGD) along the Yangtze River (1560 km) hosts numerous mid-channel bars (MCBs). MCBs dynamics are crucial to the river’s hydrological processes and local ecological function. However, a systematic understanding of such dynamics and their linkage to TGD remains largely unknown. Using Landsat-image-extracted MCBs and several spatial-temporal analysis methods, this study presents a comprehensive understanding of MCB dynamics in terms of number, area, and shape, over downstream of TGD during the period 1985−2018. On average, a total of 140 MCBs were detected and grouped into four types representing small ( 2 km2), middle (2 km2 − 7 km2), large (7 km2 − 33 km2) and extra-large size (>33 km2) MCBs, respectively. MCBs number decreased after TGD closure but most of these happened in the lower reach. The area of total MCBs experienced an increasing trend (2.77 km2/yr, p-value 0.01) over the last three decades. The extra-large MCBs gained the largest area increasing rate than the other sizes of MCBs. Small MCBs tended to become relatively round, whereas the others became elongate in shape after TGD operation. Impacts of TGD operation generally diminished in the longitudinal direction from TGD to Hankou and from TGD to Jiujiang for shape and area dynamics, respectively. The quantified longitudinal and temporal dynamics of MCBs across the entire Yangtze River downstream of TGD provides a crucial monitoring basis for continuous investigation of the changing mechanisms affecting the morphology of the Yangtze River system

Impacts on biodiversity of the Three Gorges Dam in China

La construcción de la presa de las Tres Gargantas en el curso alto del río Yangtzé (China central), que contará con la mayor central hidroeléctrica del mundo, implicará una serie de graves e importantes consecuencias sobre la biodiversidad, que son objeto de análisis en el presente artículo. La inundación de más de 600 km2 supondrá la pérdida y/o fragmentación de numerosos hábitats terrestres en el área del embalse (con una especial afectación de las especies vegetales pero también de las animales), una región que jugó un papel importante como refugio glacial y que cuenta con numerosos taxones endémicos y amenazados. Sin embargo, la biodiversidad aguas abajo podría sufrir también algún tipo de efecto, debido a la más que probable regresión de humedales y lagos laterales una vez el embalse esté construido. Numerosas poblaciones (e incluso especies enteras) de animales y plantas podrían perderse si no se adoptan las medidas conservacionistas adecuadas. La alteración del flujo del río por parte de la presa producirá también efectos significativos sobre la biodiversidad acuática, afectando especialmente a los peces migratorios (esturión, pez espátula), pero también a otras especies acuáticas, como el famoso delfín del Yangtzé. El vertido de sustancias tóxicas al río supone una amenaza adicional.We analyze the effects of the Three Gorges Dam (upper reaches of Yangtze River, Central China) on biodiversity. The dam will harbor the largest hydropower plant in the world, and will flood a 600 km2 area. It will result in the loss and/or fragmentation of many terrestrial habitats (including plants and animals) in a region that played a significant role as a glacial refuge, and currently harbors many endemic and threatened taxa. Negative effects on downstream biodiversity are also expected, because of the regression of the riparian wetlands and lateral lakes. Many plant and animal populations (and probably entire species) may be lost if conservation measures are not properly implemented, Alteration of the river flow will exert severe consequences on freshwater biodiversity, especially on migratory fishes such as two endangered sturgeons and one paddlefish, and the emblematic Yangtze River dolphin. Spillage of toxic substances into the river constitutes an additional threat.La estancia en el Instituto de Botánica de la Academia China de Ciencias es posible gracias a una beca posdoctoral del Ministerio de Educación y Ciencia (EX2005-0922) para el período 2006-2007

East Asia Unit Lesson Plans

Grade Level(s): 9-12Unit 1 Hiroshima and Nagasaki: 60 Years Later Purpose: To have students revisit the atomic bombing of Hiroshima and Nagasaki over fifty later and to show how the affects of the bombings are still impacting lives and foreign relations. Unit Two Three Gorges Dam: Is this China’s T.V.A. of the 21st Century? Purpose: To introduce students to the Three Gorges Dam project, it impact on millions of Chinese citizens and how this project compares to the T.V.A. project of the Great Depression era. Unit Three Dokdo Island. Who Does it Belong To? Purpose: : Students have squabbles over their possessions with siblings, friends, and follow students all the time. Modern nations are no different. Territorial disputes between nations have been around for centuries. As a supplement to a unit covering East Asia, students will be made aware of the territorial dispute between South Korea and Japan over which country controls Dokdo Island. This three day lesson will show the students how even modern first world countries can have territorial issues over areas as small as a tiny island.Western Boone Jr./Sr. High School; Thorntown, I

Will the Three Gorges Dam affect the underwater light climate of Vallisneria spiralis L. and food habitat of Siberian crane in Poyang Lake?

Almost 95% of the entire population of the Siberian crane (Grus leucogeranus) winter in Poyang Lake, China, where they forage on the tubers of the submerged aquatic macrophyte Vallisneria spiralis. The Three Gorges Dam on the Yangtze River may possibly affect this food source of the Siberian crane by affecting the light intensity reaching the top of the V. spiralis canopy. In this study, the photosynthetically active radiation at the top of the V. spiralis canopy (PARtc) in Lake Dahuchi was modeled from 1998 to 2006, and the potential impacts of changes in water level and turbidity on the underwater light climate of V. spiralis were analyzed. PARtc was calculated from incident irradiance while the losses due to reflection at the water surface, absorption, and scattering within the water column were taken into consideration. The results indicated significant differences in PARtc between years. Six years of water level and Secchi disk depth records revealed a seasonal switching of the lake from a turbid state at low water levels in autumn, winter, and spring to a clear state at high water levels during the monsoon in summer. The highest PARtc occurred at intermediate water levels, which were reached when the Yangtze River forces Lake Dahuchi out of its turbid state in early summer and the water becomes clear. The intended operation of the Three Gorges Dam, which will increase water levels in May and June, may advance the moment when Lake Dahuchi switches from turbid to clear. We suggest that this might increase production of V. spiralis and possibly improve the food habitat conditions for wintering Siberian crane in Poyang Lake

The Three Gorges Dam Project in China : history and consequences

After several decades of planning and deliberations, the Three Gorges Dam (Sanxia Daba, ) in the upper reaches of the Yangtze River (Central China), is near to be completed. It is expected that this mega-dam, which will harbor the largest hydropower plant in the world, will contribute to flood control in the middle and lower reaches of the Yangtze River, will solve the energetic scarcity of the region, and will improve the river navigability. Its construction, however, would also imply a series of severe negative consequences, such as the loss and fragmentation of many habitats and other effects on the wildlife, the loss of many archaeological and cultural sites, and the forced displacement of more than 1 million people.Després de diverses dècades de planificació i deliberacions, l'embassament de les Tres Gorges (Sanxia Daba,), al curs alt del riu Iang-Tsé (Xina Central), és a punt de completar-se. S'espera que aquesta enorme presa, que comptarà amb la central hidroelèctrica més gran del món, pugui contribuir al control de les inundacions en el curs mitjà i baix del Iang-Tsé, solventi l'escassetat energètica de la regió, i millori la navegabilitat del riu. La seva construcció, no obstant, també significarà una sèrie de greus consequències, com ara la pèrdua i la fragmentació d'hàbitats i d'altres efectes negatius sobre la biodiversitat, la desaparició de nombrosos jaciments arqueològics i d'altres indrets d'interès històric, i el desplaçament forçós de més d'un milió de persones.Tras varias décadas de planificación y deliberaciones, el embalse de las Tres Gargantas (Sanxia Daba,), en el curso alto del río Yangtzé (China Central), está cerca de su conclusión. De esta enorme presa, que contará con la mayor central hidroeléctrica del mundo, se espera que pueda contribuir al control de las inundaciones en el curso medio y bajo del Yangtzé, solvente la escasez energética de la región, y mejore la navegabilidad del río. Su construcción, sin embargo, también significará toda una serie de graves consecuencias, como por ejemplo la pérdida y la fragmentación de hábitats y otros efectos negativos sobre la biodiversidad, la desaparición de numerosos yacimientos arqueológicos y de otros lugares de interés histórico, y el desplazamiento forzoso de más de un millón de personas