caa a22 4500 469074701 CHVBK 20180323132932.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF00133307 doi (NATIONALLICENCE)springer-10.1007/BF00133307 GIS technologies for aquatic macrophyte studies: I. Database development and changes in the aquatic environment [Elektronische Daten] [Marguerite Remillard, Roy Welch] Geographic information system (GIS) and digital database technologies provide a link between landscape-scale ecological studies and resource management applications. A case study involves the development of an extensive GIS database for upper Lake Marion, South Carolina that includes macrophyte distributions for 1972-1988, bathymetry, sedimentation and water chemistry. This database was utilized to assess changes in the aquatic environment related to management practices such as herbicide applications for aquatic plant control. Although the herbicides were found to be very effective, spraying must be repeated annually to maintain open water areas clear of aquatic vegetation. Without herbicides macrophytes quickly reinvade and proceed in normal successional patterns to establish submergent and emergent aquatic plant beds. The PC-based procedures developed in this study can be utilized by local resource managers to assess the impact of management practices on the aquatic environment. SPB Academic Publishing bv, 1992 geographic information system (GIS) nationallicence database development nationallicence aquatic macrophytes nationallicence landscape change nationallicence Remillard Marguerite Center for Remote Sensing and Mapping Science (CRMS), Department of Geography, University of Georgia, 30602, Athens, GA, USA aut Welch Roy Center for Remote Sensing and Mapping Science (CRMS), Department of Geography, University of Georgia, 30602, Athens, GA, USA aut Landscape Ecology Kluwer Academic Publishers 7/3(1992-09-01), 151-162 0921-2973 7:3<151 1992 7 10980 https://doi.org/10.1007/BF00133307 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00133307 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Remillard Marguerite Center for Remote Sensing and Mapping Science (CRMS), Department of Geography, University of Georgia, 30602, Athens, GA, USA aut NATIONALLICENCE 700 1- Welch Roy Center for Remote Sensing and Mapping Science (CRMS), Department of Geography, University of Georgia, 30602, Athens, GA, USA aut NATIONALLICENCE 773 0- Landscape Ecology Kluwer Academic Publishers 7/3(1992-09-01), 151-162 0921-2973 7:3<151 1992 7 10980 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer