Results 41 to 50 of about 5,050,499 (303)

Compound Karst Cave Treatment and Waterproofing Strategy for EPB Shield Tunnelling in Karst Areas: A Case Study

Frontiers in Earth Science, 2021
There is high risk of water inrush and ground collapse accidents when tunnelling in karst areas. Based on the case study of an urban metro tunnel, this paper focuses on karst cave treatment and waterproofing strategies for earth pressure balancing (EPB ...
Yongshui Kang, Yongshui Kang, Zhi Geng, Zhi Geng, Linhai Lu, Lei Chen, Xuewei Liu, Bin Liu, Xing Huang   +8 more
doaj   +1 more source

Karst water resources

Eos, Transactions American Geophysical Union, 1985
The Administrative Committee for the International Symposium on Karst Water Resources met on November 12, 1984, at Hacettepe University in Ankara, Turkey. In attendance were representatives of most of the various Turkish government agencies and universities, the International Association of Hydrological Sciences (IAHS), and the United Nations, sponsors
openaire   +1 more source

The Xishuangbanna Declaration ATBC 2026 “Building Partnerships for Ecological Resilience and Long‐Term Sustainability in Tropical Asia”

Integrative Conservation, EarlyView.
The Xishuangbanna Declaration, issued at the 62nd Annual Meeting of the Association for Tropical Biology and Conservation (ATBC) held in Xishuangbanna, China, June 28–July 3rd 2026, builds on the 2006 Kunming Declaration to renew conservation priorities for tropical Asia.
Yang Jiao, Ahimsa Campos‐Arceiz, Charles H Cannon Jr., Hui Chen, Jin Chen, Yajun Chen, Richard T. Corlett, Gbadamassi G.O. Dossa, Zexin Fan, Eben Goodale, Ruichang Quan, Divya Vasudev, Sidi Wang, Jie Yang, ATBC‐Conservation Committee, Catherine Cardelus, Yaowu Xing   +16 more
wiley   +1 more source

Quantification of Carbonate Rock Dissolution Rates and Their Environmental Controls in the Northern Guangdong Karst Region Using the Dissolution Tablet Method

Redai dili
Carbonate dissolution, a key process in the global carbon cycle, sequesters large quantities of atmospheric CO2 and directly regulates inorganic carbon fluxes from terrestrial, river, and ocean ecosystems.
Weihua Tang, Fengtai Li, Junshen Luo, Min Zhao, Deshuai Zhang, Zhongkai Ren, Yeye Ren, Jianhui Du, Haicheng Zhang   +8 more
doaj   +1 more source

Nitrogen Fertilization Temporarily Enhances Phosphatase Activity in a High‐P Loamy Sand

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Efficient plant utilization of soil phosphorus (P) is essential to reduce dependence on mineral P fertilizers in intensive agriculture. Input of mineral nitrogen (N) fertilizers and its chemical form may influence the activity of P mineralizing enzymes, but how this interaction operates under field conditions in a soil with high P ...
Ingeborg F. Pedersen, Martin S. A. Blackwell, Nelly Sophie Raymond, Jørgen Eriksen   +3 more
wiley   +1 more source

Leakage analysis and remediation measures for typical karst reservoirs with structural deficiencies in Guangxi

Carsologica Sinica
Karst leakage poses a critical engineering challenge to the safety and functionality of reservoirs in Guangxi, potentially leading to water loss, reduced performance, or even operational failure.
Chun ZHUO, Huasheng SUI, Weiguo SU, Kai HAN, Yongliang LIU   +4 more
doaj   +1 more source

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

Journal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay, Mehmet Akif Sarıkaya, Uroš Stepišnik, Manja Žebre, Cengiz Yıldırım, Attila Çiner, Klaus M. Wilcken   +6 more
wiley   +1 more source

Preliminary modeling investigation on changes in Karst fractures and seepage field in rockmass between streams with equal water levels

Shuiwen dizhi gongcheng dizhi
The analytical solution of distributed water table in an unconfined aquifer between streams has been obtained in classic groundwater hydraulics based on Dupuit’s assumption, and it is frequently used in engineering practice. However, the applicability of
Youjun JIAO, Qibo HUANG, Xusheng WANG, Qingchun YU   +3 more
doaj   +1 more source

Response of water cycle to precipitation in Shizhiyan underground river system in Huixian wetland of Guilin

Shuiwen dizhi gongcheng dizhi, 2022
Karst wetland is an important regulator of karst ecosystems in southwest China and is of great significance to the sustainable development of the region.
Li LU, Shengzhang ZOU, Yi ZHAO, Lianjie FAN, Yongsheng LIN, Zhe WANG   +5 more
doaj   +1 more source

The Karst Waters Institute

Eos, Transactions American Geophysical Union, 1992
The Karst Waters Institute (KWI) is a U.S. research organization that was formed to combine the skills of academic, governmental, and private sector specialists to solve existing karst water problems and anticipate future problems. KWI has been incorporated as a not‐for‐profit corporation in West Virginia to provide the human expertise and database ...
openaire   +1 more source