Abstract
Historical and recent remote sensing data can be used to address temporal and spatial relationships between upland land cover and downstream vegetation response at the watershed scale. This is demonstrated for sub-watersheds draining into Elkhorn Slough, California, where salt marsh habitat has diminished because of the formation of sediment fans that support woody riparian vegetation. Multiple regression models were used to examine which land cover variables and physical properties of the watershed most influenced sediment fan size within 23 sub-watersheds (1.4 ha to 200 ha). Model explanatory power increased (adjusted R2 = 0.94 vs. 0.75) among large sub-watersheds (>10 ha) and historical watershed variables, such as average farmland slope, flowpath slope, and flowpath distance between farmland and marsh, were significant. It was also possible to explain the increase in riparian vegetation by historical watershed variables for the larger sub-watersheds. Sub-watershed area is the overriding physical characteristic influencing the extent of sedimentation in a salt marsh, while percent cover of agricultural land use is the most influential land cover variable. The results also reveal that salt marsh recovery depends on relative cover of different land use classes in the watershed, with greater chances of recovery associated with less intensive agriculture. This research reveals a potential delay between watershed impacts and wetland response that can be best revealed when conducting multi-temporal analyses on larger watersheds.
Similar content being viewed by others
References
Aber J. D., S. V. Ollinger, C. T. Driscoll. 1997. Modeling nitrogen saturation in forest ecosystems in response to land use and atmospheric deposition. Ecol Model 101:61–78
Allan D., D. L. Erickson, J. Fay. 1997. The influence of catchment land use on stream integrity across multiple spatial scales. Freshwater Biol 37:149–161
Allison S. K. 1995. Recovery from small-scale anthropogenic disturbances by Northern California salt marsh plant assemblages. Ecol Appl 5:693–702
Basnyat P., L. D. Teeter, K. M. Flynn, B. B. Lockaby. 1999. Relationship between landscape characteristics and nonpoint source pollution inputs to coastal estuaries. Environ Manage 23:539–549
Bedford B. 1999. Cumulative effects on wetland landscapes: links to wetland restoration in the United States and Southern Canada. Wetlands 19:775–788
Bedford B. L., E. M. Preston. 1988. Developing the scientific basis for assessing cumulative effects of wetland loss and degradation on landscape functions: status, perspectives, and prospects. Environ Manage 12:751–771
Benda L., T. Dunne. 1997. Stochastic forcing of sediment supply to channel networks from landsliding and debris flow. Water Resources Res 33:2849–2863
Bennett E. M., T. Reed-Andersen, J. N. Houser, J. R. Gabriel, S. R. Carpenter. 1999. A phosphorus budget for the Lake Mendota watershed. Ecosystems 2:69–75
Bennett E. M., S. R. Carpenter, N. F. Caraco. 2001. Human impact on erodible phosphorus and eutrophication: a global perspective. Bioscience 51:227–234
Bloom A. L. 1998. Geomorphology: a systematic analysis of late Cenozoic landforms, 3rd edition. Prentice Hall, Upper Saddle River, NJ, 482 pp
Brinson M. M. 1993. Changes in the functioning of wetlands along environmental gradients. Wetlands 13:65–74
Broadmeadow S., T. R. Nisbet. 2004. The effects of riparian forest management on the freshwater environment: a literature review of best management practice. Hydrol Earth Syst Sci 8:286–305
Byrd K. B., N. M. Kelly, E. Van Dyke. 2004. Decadal changes in a Pacific estuary: A multi-source remote sensing approach for historical ecology. GIScience Remote Sens 41:285–308
Caffrey J., M. Brown, W. B. Tyler, M. Silberstein (eds). 2002. Changes in a California estuary: a profile of Elkhorn Slough. Elkhorn Slough Foundation, Moss Landing, CA, 202 pp
California Coastal Commission. 1980. Color Infrared Prints. Flown by Western Aerial Photos, Inc. Scale 1:12,000. April 10
California Department of Water Resources. 2001. True Color Prints. Flown by American Aerial Surveys. Scale 1:12,000, June 14
Desmet P. J. J., G. Govers. 1996. A GIS procedure for automatically calculating the USLE LS factor on topographically complex landscape units. J Soil Water Conserv 51:427–433
Dickert T. G., A. E. Tuttle. 1980. Elkhorn Slough Watershed: Linking the Cumulative Impacts of Watershed Development to Coastal Wetlands. Institute of Urban and Regional Development, University of California, Berkeley, CA, 465 pp
Dickert T. G., A. E. Tuttle. 1985. Cumulative impact assessment in environmental planning: A coastal wetland watershed example. Environ Impact Assess Rev 5:37–64
Elmore, A. J., J. F. Mustard, S. P. Hamburg, S. J. Manning. 2004. Using remote sensing to detect land-use legacies in Owens Valley, California: plant community responses to varying precipitation. In Proceedings of the 89th Annual Meeting of the Ecological Society of America, 1–6 August. Portland, OR
Environmental Systems Research Institute, Inc. 1992–2002. ArcView GIS 3.3
Environmental Systems Research Institute, Inc. 1999–2004. ArcGIS 9.0 ArcInfo
Forman R. T. T., M. Godron. 1986. Landscape ecology. John Wiley and Sons, New York, NY, 619 pp
Foster D. R., G. Motzkin. 2003. Interpreting and conserving the openland habitats of coastal New England: insights from landscape history. Forest Ecol Manage 185:127–150
Foster D. R., F. Swanson, J. Aber, I. Burke, N. Brokaw, D. Tilman, A. Knapp. 2003. The importance of land-use legacies to ecology and conservation. Bioscience 53:77–88
Greer K., D. Stow. 2003. Vegetation type conversion in Los Penasquitos Lagoon, California: An examination of the role of watershed urbanization. Environ Manage 31:489–503
Hall D. L., M. R. Willig, D. L. Moorhead, R. W. Sites, E. B. Fish, T. R. Molhagen. 2004. Aquatic macroinvertebrate diversity of playa wetlands: the role of landscape and island biogeographic characteristics. Wetlands 24:77–91
Hamburg S. P., A. Rhoads, M. Vadeboncoeur. 2004. The importance of land-use legacies: looking for large scale patterns. In Proceedings of the 89th Annual Meeting of the Ecological Society of America, 1–6 August. Portland, OR
Harding J. S., E. F. Benfield, P. V. Bolstad, G. S. Helfman, E. B. D. Jones. 1998. Stream Biodiversity: The Ghost of Land Use Past. Proc Natl Acad Sci USA 95:14843–14847
Hopkinson C. S., J. J. Vallino. 1995. The relationship among man’s activities in watersheds and estuaries: a model of runoff effects on patterns of estuarine community metabolism. Estuaries 18:598–621
Houlahan J. E., C. S. Findlay. 2004. Estimating the ‘critical’ distance at which adjacent land-use degrades wetland water and sediment quality. Landscape Ecol 19:677–690
Howarth R. W., J. R. Fruci, D. Sherman. 1991. Inputs of sediment and carbon to an estuarine ecosystem: Influence of land use. Ecol Appl 1:27–39
Kentula M. E., T. K. Magee. 1999. Forward. Wetlands 19:475
Kondolf G. M., C. Anderson, J. Vick. 1997. Assessment of revegetation potential in floodplain gravel pits in California: Influence of topography and hydrology. UCAL-WRC-W-844, Center for Environmental Design Research, University of California, Berkeley, CA, 37 pp
Kouchoukos N. T. 2004. Remote sensing perspectives on the ecological legacies of development, revolution and war in Khuzestan, southwest Iran. In Proceedings of the 89th Annual Meeting of the Ecological Society of America, 1–6 August. Portland, OR
Lammert M., J. D. Allan. 1999. Environmental Auditing: Assessing biotic integrity of streams: Effects of scale in measuring the influence of land use/cover and habitat structure on fish and macroinvertebrates. Environ Manage 23:257–270
Largay B. 2005. Personal communication. Resource Conservation District of Monterey County, Salinas, CA. May 3
Lee K. H., T. M. Isenhart, R. C. Schultz. 2003. Sediment and nutrient removal in an established multi-species riparian buffer. J Soil Water Conserv 58:1–8
Leica Geosystems GIS & Mapping, L. L. C. 1991–2003. ERDAS Imagine 8.7
Lenat D. R., J. K. Crawford. 1994. Effects of land use on water quality and aquatic biota of three North Carolina Piedmont streams. Hydrobiologia 294:185–199
Lillesand T. M., R. W. Kiefer. 2000. Remote Sensing and Image Interpretation. John Wiley and Sons, Inc., New York, NY, 724 pp
Maidment D. R. (ed). 2002. Arc Hydro:GIS for Water Resources. ESRI Press, Redlands, CA
McKergow L. A., D. M. Weaver, I. P. Prosser, R. B. Grayson, A. E. G. Reed. 2003. Before and after riparian management: sediment and nutrient exports from a small agricultural catchment, Western Australia. J Hydrol 270:253–272
Meehan W. R. 1991. Influences of forest and rangeland management on salmonid fishes and their habitats. American Fisheries Society, Bethesda, MD, 751 pp
Monterey County Information Technology. 1999. Black and White Digital Orthophotos. Flown by Pacific Aerial Surveys. December
Monterey County Information Technology. 2001. Color Infrared Digital Orthophotos. Flown by Pacific Aerial Surveys. May 30, 31, and June 1
Opperman J. J., K. A. Lohse, C. Brooks, N. M. Kelly, A. M. Merenlender. 2005. Influence of land use on fine sediment in salmonid spawning gravels within the Russian River Basin, California. Can J Fish Aquat Sci 62:2740–2751
Owen C. R. 1999. Hydrology and history: land use changes and ecological responses in an urban wetland. Wetland Ecol Manage 6:209–219
Pan Y., A. Herlihy, P. Kaufmann, J. Wigington, J. van Sickle, T. Moser. 2004. Linkages among land-use, water quality, physical habitat conditions and lotic diatom assemblages: a multi-spatial scale assessment. Hydrobiologia 515:59–73
Poiani K. A., B. L. Bedford, M. D. Merrill. 1996. A GIS-based index for relating landscape characteristics to potential nitrogen leaching to wetlands. Landscape Ecol 11:237–255
Potter K. M., F. W. Cubbage, G. B. Blank. 2004. A watershed-scale model for predicting nonpoint pollution risk in North Carolina. Environ Manage 34:62–74
Quinn G. P., M. J. Keough. 2002. Experimental design and data analysis for biologists. Cambridge University Press, Cambridge, UK, 537 pp
Richards C., L. B. Johnson, G. E. Host. 1996. Landscape-scale influences on stream habitats and biota. Can J Fish Aquat Sci 53(Suppl 1):295–311
SAS Institute, Inc. 2002. SAS Version 9.0. Cary, NC
Schäuble H. 1999. Bodenerosionsprognosen mit GIS und EDV. Ein Vergleich verschiedener Bewertungskonzepte am Beispiel einer Gäulandschaft. Diploma at the Faculty of Geography (University of Tübingen, Germany)
Schwartz D. L., H. T. Mullins, D. F. Belknap. 1986. Holocene geologic history of a transform margin estuary: Elkhorn Slough, California. Estuarine Coastal Shelf Sci 22:285–302
Schwarz W. L., G. P. Malanson, F. H. Weirich. 1996. Effect of landscape position on the sediment chemistry of abandoned-channel wetlands. Landscape Ecol 11:27–38
Statacorp LP. 1985–2004. Intercooled Stata 8.2 for Windows. College Station, TX
Strayer D. L., R. E. Beighley, L. C. Thompson, S. Brooks, C. Nilsson, G. Pinay, R. J. Naiman. 2003. Effects of land cover on stream ecosystems: roles of empirical models and scaling issues. Ecosystems 6:407–423
Townsend C. R., B. J. Downes, K. Peacock, C. J. Arbuckle. 2004. Scale and the detection of land-use effects on morphology, vegetation, and macroinvertebrate communities of grassland streams. Freshwater Biol 49:448–462
Turner B. L. 2004. The ancient Maya and modern forests in southern Yucatan: synergy of historical and contemporary studies. In Proceedings of the 89th Annual Meeting of the Ecological Society of America, 1–6 August 2004. Portland, OR
USDA-NRCS. 2002. The Elkhorn Slough Watershed Project 2000–2001 Report. Natural Resources Conservation Service, Salinas, CA, 18 pp
USDA-NRCS. 2004. Soil Survey Geographic (SSURGO) Database for Monterey County, California. Fort Worth, TX
USDA-SCS. 1984. Strawberry hills target area. Watershed area study report. Soil Conservation Service, Monterey County, CA, 55 pp
USDA-SCS. 1994. Elkhorn Slough Watershed Project: Watershed Plan and Environmental Assessment. Davis, CA
Winter T. C. 1988. A conceptual framework for assessing cumulative impacts on the hydrology of nontidal wetlands. Environ Manage 12:605–620
Winter T. C. 1992. A physiographic and climatic framework for hydrologic studies of wetlands. In R. D. Robarts M. L. Bothwell (eds). Aquatic Ecosystems in Semi-arid Regions: Implications for Resource Management N.H.R.I. Symposium Series 7. Environment Canada, Saskatoon, Canada, pp 127–148
Acknowledgments
We thank Bryan Largay of the Resource Conservation District of Monterey County for consultation on watershed hydrology, and Kim Hayes, Eric Van Dyke, and Kerstin Wasson of the Elkhorn Slough Foundation and Elkhorn Slough National Estuarine Research Reserve (ESNERR) for their assistance. Field work would not have been possible without research assistants Asmeret Bier, Brooke Cleveland, Carly Zwerdling, David Wilson, and volunteers from ESNERR. This research was funded by the University of California Center for Water Resources and the University of California Marine Council Coastal Environmental Quality Graduate Fellowship and Graduate Research Support.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Byrd, K.B., Kelly, N.M. & Merenlender, A.M. Temporal and Spatial Relationships Between Watershed Land Use and Salt Marsh Disturbance in a Pacific Estuary. Environmental Management 39, 98–112 (2007). https://doi.org/10.1007/s00267-005-0217-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00267-005-0217-z