نتایج جستجو برای: karstic water

تعداد نتایج: 551116  

Journal: :Zootaxa 2015
Mingyi Tian Xiaozhu Luo

Giraffaphaenops yangi n. sp. is described from a limestone cave named Shizikou Dadong, Tianlin County, northwestern Guangxi, China. It is the second species of this genus, which is the most morphologically modified in the tribe Trechini in terms of troglobiomorphy. So far, Giraffaphaenops ranges in a small karstic area in northwestern Guangxi. Of the two known species, G. clarkei Deuve, 2002 wa...

2011
A. S. P. S. REBOLEIRA

Domene (Lathromene) lusitanica n. sp. from Sicó karstic massif in Portugal is described and compared with other species of the subgenus, representing the first hypogean rove beetle from mainland Portugal. A comparison between Domene lusitanica n. sp. and the other species of the Iberian endemic subgenus Lathromene is made using diagnostic characters. An identification key for the males of Lathr...

2011
Angelica Crottini Frank Glaw Maurizio Casiraghi Richard K.B. Jenkins Vincenzo Mercurio Christian Randrianantoandro Jasmin E. Randrianirina Franco Andreone

We describe a new mantellid frog of the subfamily Mantellinae from the karstic Bemaraha Plateau, western Madagascar. The new species belongs to the genus Gephyromantis, subgenus Phylacomantis, which previously included Gephyromantis azzurrae, Gephyromantis corvus and Gephyromantis pseudoasper. Gephyromantis atsingysp. n. has a snout-vent length of 35-43 mm and is a scansorial frog living among ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

Journal: :Diversity 2021

Karstic landscapes are immense reservoirs of biodiversity and range-restricted endemism. Nowhere is this more evident than in the world’s third-largest vertebrate genus Cyrtodactylus (Gekkonidae) which contains well over 300 species. A stochastic character mapping analysis 10 different habitat preferences across a phylogeny containing 344 described undescribed species recovered karst preference...

ژورنال: آبخیزداری ایران 2020

Study of karstic rocks properties, understanding teh chemical and physical properties TEMPhas a special place in resent researches. By understanding of teh properties mentioned such as Bulk density, Porosity, coefficient of solubility, solubility rate … can be evaluated for karst development in teh soluble rocks. Teh purpose of dis study is teh assessment of seasonal variations of teh solute an...

2009
Yonghong Hao Yuen Zhu Ying Zhao Wei Wang Xin Du Tian-Chyi J. Yeh

One of the largest karst springs in North China, the Jinci Springs, dried up and has remained dry since 1994. We develop a correlation analysis with time-lag and a regression analysis with time-lag to study the relation between spring flow and precipitation. This allows us to obtain a better understanding of karst hydrological processes by differentiating the contribution of variation in precip...

Journal: :Environmental science & technology 2014
Antonio Tovar-Sánchez Gotzon Basterretxea Valentí Rodellas David Sánchez-Quiles Jordi García-Orellana Pere Masqué Antoni Jordi José M López Ester Garcia-Solsona

Submarine groundwater discharge (SGD) and derived nutrient (NO2(-), NO3(-), NH4(+), PO4(3-), and SiO2) and trace element (Cd, Co, Cu, Fe, Mo, Ni, Pb, V and Zn) loadings to the coastal sea were systematically assessed along the coast of Majorca Island, Spain, in a general survey around the island and in three representative coves during 2010. We estimated that brackish water discharges through t...

Journal: :J. Applied Mathematics 2011
Xiaolin Fan Shuyu Sun Wei Wei Jisheng Kou

This paper begins with presenting a mathematical model for contaminant transport in the fractured vuggy porous media of a species of contaminant PCP . Two phases are numerically simulated for a process of contaminant and clean water infiltrated in the fractured vuggy porous media by coupling mixed finite element MFE method and finite volume method FVM , both of which are locally conservative, t...

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