Correlation analysis between mangrove wetland landscape pattern and water quality in coastal waters——A case study of Guangxi Beihai region
CHEN Yong-lin1,2, SUN Yong-guang3, XIE Bing-geng2, KANG Jing3, LI Xiao-qing2
1. Department of Geography and Planning, Gannan Normal University, Ganzhou 341000, China;
2. Department of Resources and Environment, Hunan Normal University, Changsha 410081;
3. National Marine Environment Monitoring Center, Dalian 116023, China
Abstract：With the support of EVNI4.8,SPSS17.0 and ARCGIS10.0 software platform,it analyzes the correlation between mangrove wetland landscape pattern and water quality in coastal waters by using the bivariate correlation analysis,by which chooses the offshore waters in Guangxi Beihai region as the study area based on the high multispectral data of SPOT5 satellite in 2010.The results show that the mangrove wetland landscape pattern has a certain representation of water quality in coastal waters.The landscape area,fragmentation,diversity and dominant species are the main indicators affecting the quality of water environment.There is a certain correlation between landscape pattern index and water quality parameters which is a significant positive correlation between TLA and transparency,a significant positive correlation between NumP and salinity,a significant negative correlation between NumP and chemical oxygen demand(BOD),a significant negative correlation between MPFD and ammonium salt(NH4+),a significant negative correlation among MPAR,nitrite(NO2-),nitrate(NO3-) and inorganic phosphorus(P) and a significant positive correlation between SDI and mercury(Hg).The correlation is not obvious between other landscape pattern index and water quality parameters.
CHEN Yong-lin,SUN Yong-guang,XIE Bing-geng et al. Correlation analysis between mangrove wetland landscape pattern and water quality in coastal waters——A case study of Guangxi Beihai region[J]. Marine Environmental Science, 2016, 35(1): 7-12.
WU J G,HOBBS R.Key issues and research priorities in landscape ecology:an idiosyncratic synthesis[J]. Landscape Ecology,2002,17(4):355-365.
[2]
XIAO H G,JI W.Relating landscape characteristics to non-point source pollution in mine waste-located watersheds using geospatial techniques[J].Journal of Environmental Management,2007,82(1):111-119.
AZOUS A L,HORNER R R.Wetlands and Urbanization:Implications for the Future[Z].Boca Raton:CRC Press LLC,2001.
[6]
ALLAN J D.Landscapes and riverscapes:The influence of land use on stream ecosystems[J].Annual Review of Ecology,Evolution,and Systematics,2004,35(1):257-284.
[7]
DEFRIES R,ESHLEMAN K N.Land-use change and hydrologic processes:a major focus for the future[J].Hydrological Processes,2004,18(11):2183-2186.
Wear D N,Monnica G T,Robert J N.Land cover along an urban-rural gradient:implications for water quality[J].Ecological Applications,1998,8(3):619-630.
[28]
Wang J Y,Da L J,Song K,Li B L.Temporal variations of surface water quality in urban,suburban and rural areas during rapid urbanization in Shanghai,China[J].Environmental Pollution,2008,152(2):387-393.
[an error occurred while processing this directive] | [an error occurred while processing this directive]
