A GIS-based method of Lake Gucheng water quality assessment

DOI

10.2991/wartia-16.2016.232How to use a DOI?

Keywords

GIS, TSI, Lake Gucheng

Abstract

In order to study the water quality of Lake Gucheng, a geographical information system (GIS)-based method was used. The spatial distribution of eutrophication conditions in Lake Gucheng was investigated. A trophic stated index(TSI) consisting of four physical, chemical and biological indicators including total phosphorus (TP),total nitrogen(TN),secchi disk depth(SD),chlorophyll-a concentration(chl-a) was constructed to described the eutrophication state of the lake environment. A representation of the spatial distribution of TSITP, TSITN, TSISD, TSIChl-a was developed using the inverse distance weighted (IDW) interpolation method. Four thematic maps were synthesized a final map of the spatial distribution of eutrophication conditions. The results indicate that upper-mesotrophic conditions (TSI 50–60) cover most of the study area, while the eutrophic conditions (TSI 60–70) are distributed just in the northwestern part of the open water area .A very limited area in the central part of the study area is characterized as eutrophic (TSI 60–70). The high biomass of submerged mcarophytes contributed to the low TSI in the open water areas. human activities are responsible for the eutrophic conditions in the northwestern part of the Lake Gucheng.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lizhi Wang
PY  - 2016/05
DA  - 2016/05
TI  - A GIS-based method of Lake Gucheng water quality assessment
BT  - Proceedings of the 2016 2nd Workshop on Advanced Research and Technology in Industry Applications
PB  - Atlantis Press
SP  - 1095
EP  - 1099
SN  - 2352-5401
UR  - https://doi.org/10.2991/wartia-16.2016.232
DO  - 10.2991/wartia-16.2016.232
ID  - Wang2016/05
ER  -