16 Result(s)

Article

Accumulation of organic carbon in a large canyon reservoir in Karstic area, Southwest China

Artificial reservoirs play an important role in intercepting organic carbon (OC), which affects the carbon cycle of inland waters. However, limited by the methods of field observations, studies on the potentia...

Yong Qin, Feng Hao, Dong Zhang, Yunchao Lang… in Environmental Science and Pollution Resear… (2020)

Article

Seasonal and long-term trends of sulfate, nitrate, and ammonium in PM_2.5 in Bei**g: implication for air pollution control

Particulate matter pollution in Bei**g is a serious environmental problem. In response to this, the Bei**g government has implemented comprehensive emission reduction measures in recent years. To assess the ...

**aokun Han, Qingjun Guo, Yunchao Lang… in Environmental Science and Pollution Resear… (2020)

Article

Using seismic surveys to investigate sediment distribution and to estimate burial fluxes of OC, N, and P in a canyon reservoir

As a high-precision survey method, seismic surveying has been increasingly applied to inland water research, although its application to artificial reservoirs has remained limited. As a special artificial wate...

Ningxiao Yu, Yong Qin, Feng Hao, Yunchao Lang, Fushun Wang in Acta Geochimica (2019)

Article

Progress in XCAMS at Tian** University

A compact ¹⁴C AMS system extended for ¹⁰Be and ²⁶Al (XCAMS) was installed at Tian** University in October 2017. As an initial testing result, a detection limit of 4.4 × 10⁻¹⁶ for ¹⁴C/¹²C, 3.8 × 10⁻¹⁵ for ¹⁰Be/⁹B...

Kejun Dong, Yunchao Lang, Sheng Xu in Radiation Detection Technology and Methods (2019)

Article

The new AMS facility at Tian** University

Accelerator mass spectrometry (AMS) has been used for the analysis of a lot nuclides in many scientific fields and is one of the most optimal methods to determine very low concentrations of long-lived nuclides...

Kejun Dong, Yunchao Lang, Nan Hu, Jun Zhong… in Radiation Detection Technology and Methods (2018)

Article

Characteristics, source, and potential ecological risk assessment of polycyclic aromatic hydrocarbons (PAHs) in the Songhua River Basin, Northeast China

The concentration characteristics, sources, and potential ecological risk assessment of 16 PAHs were investigated in the surface water from the Songhua River Basin, Northeast China. A total of 48 river water s...

Jian Hu, Congqiang Liu, Qingjun Guo… in Environmental Science and Pollution Resear… (2017)

Article

Temporal transport of major and trace elements in the upper reaches of the **jiang River, SW China

This study investigated the temporal variations of major and trace element contents and controlling factors in the upper reaches of the **jiang River, SW China. The results showed the major ions principally d...

**g Liu, Si-Liang Li, Jiu-Bin Chen, Jun Zhong, Fu-Jun Yue… in Environmental Earth Sciences (2017)

Article

Research and application of method of oxygen isotope of inorganic phosphate in Bei**g agricultural soils

Phosphorus (P) in agricultural ecosystems is an essential and limited element for plants and microorganisms. However, environmental problems caused by P accumulation as well as by P loss have become more and m...

Liyan Tian, Qingjun Guo, Yongguan Zhu… in Environmental Science and Pollution Resear… (2016)

Article

Chemical and sulfur isotopic composition of precipitation in Bei**g, China

China is experiencing serious acid rain contamination, with Bei**g among the worst-hit areas. To understand the chemical feature and the origin of inorganic ions in precipitation of Bei**g, 128 precipitation...

Guangxu Zhu, Qingjun Guo, Tongbin Chen… in Environmental Science and Pollution Resear… (2016)

Article

Evaluation of nitrate source in surface water of southwestern China based on stable isotopes

Stable isotope tracing and analysis play an important role in interpretation of hydrological and ecological processes at the watershed scale and can provide information regarding the flow path, water source, n...

Si-Liang Li, Cong-Qiang Liu, Jun Li, Zicheng Xue, ** Guan… in Environmental Earth Sciences (2013)

Article

Accumulation of trace elements in agricultural topsoil under different geological background

For establishing rational farming mechanism, it is essential to know the relative contribution of different geological background and anthropogenic activities to trace elements in agricultural soil. In this pa...

Chenglong Tu, Tengbing He, Congqiang Liu, **aohui Lu, Yunchao Lang in Plant and Soil (2011)

Article

Stable isotopes (S, Cl) and hydrochemical variations in a karstic ground water system, Guiyang, SW China

Yunchao Lang, Congqiang Liu, Jianghong Wu… in Chinese Journal of Geochemistry (2006)

Article

Using the dual isotopes approach to identify the nitrate sources of karst groundwater, Guiyang, Southwest China

Siliang Li, Congqiang Liu, Yunchao Lang in Chinese Journal of Geochemistry (2006)

Article

Geochemical study of boron isotopes in the process of loess weathering

In this paper the boron contents and boron isotopic composition of acid-soluble phases in loess and paleosol samples are determined for the first time. The boron contents of acid-soluble phases in the Luochuan...

Zhiqi Zhao, Congqiang Liu, Yingkai **ao… in Science in China Series D: Earth Sciences (2003)