Application of stable isotopes (δ34S-SO4, δ18O-SO4, δ15N-NO3, δ18O-NO3) to determine natural background and contamination sources in the Guadalhorce River Basin (southern Spain)

Metahadzia uncispina n. sp. is described, being the second species of the genus on the Iberian Peninsula. The new species, well characterized by the transformation of the apical spine on the endopodite of the male uropod 2, is undoubtedly closely related with M. tavaresi (Mateus & Mateus, 1972) from the south of Portugal. Comments are made about recent emendations of the original concept of the genus Metahadzia Stock, 1977.

Download Full-text

Spatial and temporal characteristics of stable isotopes in the Tarim River Basin

Isotopes in Environmental and Health Studies ◽

10.1080/10256016.2016.1125350 ◽

2016 ◽

Vol 52 (3) ◽

pp. 281-297 ◽

Cited By ~ 14

Author(s):

Congjian Sun ◽

Xingong Li ◽

Yaning Chen ◽

Weihong Li ◽

Randy L. Stotler ◽

...

Keyword(s):

Stable Isotopes ◽

River Basin ◽

Tarim River ◽

Tarim River Basin ◽

Temporal Characteristics ◽

The Tarim River ◽

The Tarim River Basin ◽

Spatial And Temporal Characteristics

Download Full-text

Assessments of seasonal groundwater recharge and discharge using environmental stable isotopes at Lower Muda River Basin, Malaysia

Applied Water Science ◽

10.1007/s13201-018-0767-x ◽

2018 ◽

Vol 8 (5) ◽

Cited By ~ 2

Author(s):

Mohd Khairul Nizar Shamsuddin ◽

Wan Nor Azmin Sulaiman ◽

Mohammad Firuz Ramli ◽

Faradiella Mohd Kusin ◽

Kamarudin Samuding

Keyword(s):

Stable Isotopes ◽

Groundwater Recharge ◽

River Basin

Download Full-text

Classification of Stable Isotopes and Identification of Water Replenishment in the Naqu River Basin, Qinghai-Tibet Plateau

Water ◽

10.3390/w11010046 ◽

2018 ◽

Vol 11 (1) ◽

pp. 46 ◽

Cited By ~ 4

Author(s):

Xi Chen ◽

Guoli Wang ◽

Fuqiang Wang

Keyword(s):

Stable Isotopes ◽

River Basin ◽

Source Identification ◽

Evaluation Model ◽

Tibet Plateau ◽

High Status ◽

Fuzzy Evaluation ◽

Isotopic Study ◽

Qinghai Tibet Plateau

The stable isotopic study of the mechanism of runoff replenishment in the Qinghai-Tibet Plateau is a time-consuming and complicated process requiring complex monitoring data and scientific evaluation methods. Based on the data of water stable isotopes (18O and 2H) in the Naqu River basin, the present paper developed a framework of the variable fuzzy evaluation model (VFEM) to provide a method to classify stable isotopes and generalize the source identification of water replenishment by rainfall or snowmelt in the Naqu River basin. The grade eigenvalues of tributaries were ranked from low to high as follows: 1, 1.005, 1.089, 1.151, 1.264, 1.455 and 2.624. Three sets of tributaries were distinguished. The grade eigenvalues of the Najinqu, Bazongqu, Mumuqu, Chengqu and Gongqu Rivers were small, indicating that these tributaries were strongly supplemented by precipitation and snowmelt; the grade eigenvalue of the Zongqingqu River was in the medium range (1.455); the third group included the Mugequ River with a high status value (2.624). This study mainly highlighted the combination of the classification of stable isotopes and plots of δ2H vs. δ18O in the source identification of water replenishment, which will be helpful for studying runoff replenishment and the evolution mechanism in the Qinghai-Tibet Plateau.

Download Full-text