Current and Future Trends of Rainfall Erosivity and Soil Erosion in Central Asia, Duulatov Eldiiar, Chen XI, Issanova Gulnura
Автор: Zhang Название: Rainfall-Induced Soil Slope Failure ISBN: 0367139014 ISBN-13(EAN): 9780367139018 Издательство: Taylor&Francis Рейтинг: Цена: 11176.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book integrates probabilistic approaches with the geotechnical modeling of slope failures under rainfall conditions with unsaturated soil. It covers theoretical models, reliability analysis based on coupled hydro-mechanical modeling, slope stability, and probabilistic model calibration.
Автор: Uda Takaaki Название: Japan`S Beach Erosion: Reality And Future Measures ISBN: 9814277126 ISBN-13(EAN): 9789814277129 Издательство: World Scientific Publishing Рейтинг: Цена: 15523.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Beaches in Japan have been eroding since the 1970s as a result of the artificial land alterations. Due to the port and dam developments, fluvial sand supply has significantly reduced resulting in shoreline recession around the river mouths. This book examines many coastal areas as examples, highlighting the various erosion factors.
State failure is a central challenge to international peace and security in the post-Cold War era. Yet theorizing on the causes of state failure remains surprisingly limited. In State Erosion, Lawrence P. Markowitz draws on his extensive fieldwork in two Central Asian republics—Tajikistan, where state institutions fragmented into a five-year civil war from 1992 through 1997, and Uzbekistan, which constructed one of the largest state security apparatuses in post-Soviet Eurasia—to advance a theory of state failure focused on unlootable resources, rent seeking, and unruly elites.In Tajikistan, Uzbekistan, and other countries with low capital mobility—where resources cannot be extracted, concealed, or transported to market without state intervention—local elites may control resources, but they depend on patrons to convert their resources into rents. Markowitz argues that different rent-seeking opportunities either promote the cooptation of local elites to the regime or incite competition over rents, which in turn lead to either cohesion or fragmentation. Markowitz distinguishes between weak states and failed states, challenges the assumption that state failure in a country begins at the center and radiates outward, and expands the "resource curse" argument to include cash crop economies, where mechanisms of state failure differ from those involved in fossil fuels and minerals. Broadening his argument to weak states in the Middle East (Syria and Lebanon) and Africa (Zimbabwe and Somalia), Markowitz shows how the distinct patterns of state failure in weak states with immobile capital can inform our understanding of regime change, ethnic violence, and security sector reform.
Beaches in Japan have been eroding since the 1970s because of artificial land alterations and unsustainable coastal development. Almost all causes of the beach erosion in Japan are due to anthropogenic factors -- as a result of human activity. This book presents the state of the beaches throughout Japan, looking at the current reality and the classification of causes of beach erosion using real-life, illustrated examples. It then goes on to look at practical models which can be used to predict changes to different types of beaches, and concludes with investigation of beach erosion as a wider structural problem. Lessons learnt show the manner in which excessive coastal development without clearly identified measures for beach protection can have widespread global ramifications.
This second edition presents new findings from field studies carried out on Japanese beaches, along with the development and improvement of the numerical model presented previously. In addition to the first edition, six new examples of the beach erosion in Japan are included, as is new analysis of the BG model (a model for predicting based on Bagnold's concept), which can be applicable to various field problems.
Originally published in Japanese (2004), this updated version gives clear practical guidance to coastal engineers working to prevent irreversible beach erosion and sustainable coastal development policy.
Название: Modeling of soil erosion and sediment transport ISBN: 3039430025 ISBN-13(EAN): 9783039430024 Издательство: Неизвестно Рейтинг: Цена: 8902.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
The Special Issue entitled "Modeling of Soil Erosion and Sediment Transport" focuses on the mathematical modeling of soil erosion caused by rainfall and runoff at a basin scale, as well as on the sediment transport in the streams of the basin. In concrete terms, the quantification of these phenomena by means of mathematical modeling and field measurements has been studied. The following mathematical models (software) were used, amongst others: AnnAGNPS, SWAT, SWAT-Twn, TUSLE, WRF-Hydro-Sed, CORINE, LCM-MUSLE, EROSION-3D, HEC-RAS, SRC, WA-ANN. The Special Issue contains 14 articles that can be classified into the following five categories: Category A: "Soil erosion and sediment transport modeling in basins"; Category B: "Inclusion of soil erosion control measures in soil erosion models"; Category C: "Soil erosion and sediment transport modeling in view of reservoir sedimentation"; Category D: "Field measurements of gully erosion"; Category E: "Stream sediment transport modeling". Most studies presented in the Special Issue were applied to different basins in Europe, America, and Asia, and are the result of the cooperation between universities and/or research centers in different countries and continents, which constitutes an optimistic fact for the international scientific communication.
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