نتایج جستجو برای: karst development k

تعداد نتایج: 1772307  

2006
CONSTANZE KARST VLADIMIR TRIFONOV SVETLANA A. ROMANENKO UWE CLAUSSEN KRISTIN MRASEK PHILIP AVNER THOMAS LIEHR

The Moloney murine leukemia virus-transformed suspension cell line WMP2 is derived from wild mice (Mus musculus) of the WMP/WMP strain. These mice carry nine pairs of metacentric Robertsonian translocation chromosomes. As the chromosomes of the wild-type mouse are all acrocentric, metaphase spreads of the WMP2 cells seam to be highly suited for physical gene mapping. Here we studied the WMP2 li...

2002
Jack B. Epstein David J. Weary Randall C. Orndorff

Congress mandated the establishment of the National Cave and Karst Research Institute in October 1998 to further the science of speleology by facilitating research, to enhance public education, and to promote environmentally sound cave and karst management. Considerable progress has been made during the tenure of the Interim Director (2000-2002) toward making the Institute operational. The scop...

2006
Mitchell T. Irwin

Smithsonian Institution Press, Washington, D.C. Hamrick, M.W., Simons, E.L., Jungers, W.L. 2000. New wrist bones of the Malagasy giant subfossil lemurs. J. Human Evol. 38: 635-650. Jernvall, J.; Wright, P.C.; Simons, E.L. 2003. Report on findings of subfossils at Ampoza and Ampanihy in southwestern Madagascar. Lemur News 8: 21-23. Martin, L.D.; Gilbert, B.M. 1978. Escavations at Natural Trap Ca...

Journal: :Remote Sensing 2016
Xiangjian Xie Shufang Tian Peijun Du Wenfeng Zhan Alim Samat Jike Chen

Considering the important roles of carbonate rock fraction in karst rocky desertification areas and their potential for indicating damage to vegetation, improved knowledge is desired to assess the application of spectroscopy and remote sensing to characterizing and quantifying the biophysical constituents of karst landscapes. In this study, we examined the spectra of major surface constituents ...

2014
MaryLynn Musgrove Brian G Katz Lynne S Fahlquist Christy A Crandall Richard J Lindgren

Karst aquifers occur in a range of climatic and geologic settings. Nonetheless, they are commonly characterized by their vulnerability to water-quality impairment. Two karst aquifers, the Edwards aquifer in south-central Texas and the Upper Floridan aquifer in western Florida, were investigated to assess factors that control the movement of contaminants to public-supply wells (PSWs). The geoche...

Journal: :Frontiers in Ecology and Evolution 2023

Against the background of global environmental changes and intensification human activity, village ecosystem faces enormous challenges. In particular, rural areas in South China Karst face serious problems, such as karst desertification human–land conflicts. recent decades, Chinese government scientific researchers have committed to controlling desertification. However, ecosystems context contr...

Journal: :international journal of geo science and environmental planning 0
raha bahtooei master of landscape architecture, tarbiat modarres university mohammad nikkar assistant professor, department of architecture, faculty of art and architecture, shiraz university, shiraz, iran

the study of karst phenomena and its potentials has had always a particular importance in semi-arid zones of iran, specifically due to the lack of water sources. in this paper, we are going to discuss the landscape morphology in karstic areas, and the way we can have an ecological planning approach to it. maharlu karst basin was selected as the case study of karstic area, and kaftarak mount in ...

2007
OGNJEN BONACCI Ognjen Bonacci

By analysing the hydrographs of karst springs it is possible to identify aquifer characteristics and, accordingly, the main features of a karst rock-fissure massif. Consequently, relevant data can be obtained by analysing hydrograph recession curves. This paper presents a detailed analysis and explanation of numerous cases of break points on recession curves via various values of the recession ...

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