Environmental Sciences Commons^™

Tree Islands In Everglades Landscapes: Current Status, Historical Changes, And Hydrologic Impacts On Population Dynamics And Moisture Relations, First Annual Report, Michael Ross, Steve Oberbauer, Pablo Ruiz, Nilesh Timilsina, Daniel Gomez, Jay Sah, Susanna Stofella, Leonel Sternberg

SERC Research Reports

In 2005 we initiated a project designed to better understand tree island structure and function in the Everglades and the wetlands bordering it. Focus was on the raised portions at the upstream end of the islands, where tropical hardwood species adapted to well-drained conditions usually are the most prominent component of the vegetation. The study design is hierarchical, with four levels; in general, a large number of sites is to be surveyed once for a limited set of parameters, and increasingly small sets of islands are to be sampled more intensively, more frequently, and for more aspects of ecosystem function. …

Slides: Tug Hill Commission, Ny, Linda Gibbs

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Linda Gibbs, Natural Resources Specialist, Tug Hill Commission, NY

26 slides

Slides: Response Of The System To Various Hydrological And Operational Assumptions: Reclamation Modeling Results, Terry Fulp

Hard Times on the Colorado River: Drought, Growth and the Future of the Compact (Summer Conference, June 8-10)

Presenter: Terry Fulp, US Bureau of Reclamation.

43 slides.

Slides: Drought, Climate Change And Water Supply Vulnerability, Brad Udall

Hard Times on the Colorado River: Drought, Growth and the Future of the Compact (Summer Conference, June 8-10)

Presenter: Brad Udall, Western Water Assessment.

66 slides.

Altered Hydrology In Connecticut Watersheds Prioritized For Protection, Denise Burchsted

Denise Burchsted

The Nature Conservancy (TNC) has selected the Saugatuck, Salmon, Eight Mile, Mount Hope / Natchaug, and Hollenbeck River watersheds for priority protection in Connecticut. A number of threats, including altered hydrology, have been identified in these watersheds. This project has been designed to better understand that threat and provide some context for future protection or restoration of the hydrology within those watersheds. The definition of altered hydrology is problematic, as the time at which the watersheds are considered unaltered is ambiguous and historic data is often unavailable. In order to address that difficulty, this project used the following approach: 1. …

Silcrete Hardpan In The North-Eastern Wheatbelt : Hydrological Implications For Oil Mallees, D L. Bennett, Russell Speed, Adrian Goodreid, Peter Taylor

Resource management technical reports

Silcrete is a brittle, intensely indurated rock comprising primarily quartz grains cemented with siliceous allophane. It occurs at 1.5 to 7 metres deep and is often several metres thick and extremely hard, requiring excavation. This Report discusses the extent of silcrete layers in the north-eastern wheatbelt area of Western Australia, the effects of silcrete on water absorption by the soil, and the effects of this physical obstacle on the growth and expansion of oil mallee trees of the region.

Greenough Region Catchment Appraisal, Angela Stuart-Street, M Clarke

Resource management technical reports

This report discusses a range of options for the Greenough region, which is comprised of eight shires including the Shires of Northampton, Chapman Valley, Mullewa, Greenough, Morawa, Irwin, Mingenew and Three Springs, and also the city of Geraldton. A range of options for reducing land degradation is discussed. Factors such as soil type, annual rainfall, enterprise mix and financial structure are also considered.

Groundwater Study Of The Boddington Townsite, Gregory Paul Raper

Resource management technical reports

A study of the groundwater beneath the Boddington townsite was carried out in April 2002. The aim was to assess the salinity risk to the townsite infrastructure and to accelerate the implementation of effective salinity management for the town. The study consisted of field reconnaissance, a drilling program, expansion of a groundwater-monitoring network installed in March 2001, and groundwater monitoring.

Pingrup Townsite : Drilling Completion Report, Louise Hopgood, Department Of Agriculture, Western Australia. Rural Towns Program

Resource management technical reports

Initial drilling was carried out in the townsite of Pingrup in Western Australia in April 2002. This report shows the findings of the study in terms of soil characteristics, watertable management and groundwater monitoring.

Runoff Production In The Upper Rio Chagres Watershed, Panama, Fred Ogden

Fred L. Ogden

Runoff production in tropical watersheds is governed by a wide variety of potential sources and there have been few rigorous studies to date. The 414 km2 upper Río Chagres basin offers a unique opportunity to better understand the runoff production mechanisms in tropical watersheds through data analysis and modeling with rainfall and runoff data. Flow data and tipping bucket rain gage data are available at both the basin outlet (Chico gage) and for an 80.6 km2 internal basin location (Piedras gage). Modeling is performed using the Sacramento Soil Moisture Accounting Model (SAC-SMA), calibrated using data from 2000 and verified using …