Land Change Science Program


Filter Total Items: 35
Bottom of a soil pit showing the different colored soils
January 26, 2015

Marine Terrace Soil at Wilder Ranch State Park

Marine terrace soil at Wilder Ranch State Park near Santa Cruz, California. Here at the bottom of the pit, 64 inches (160cm), the colors have different mineralogy and chemistry from one another, these changes have been formed by root processes over 90,000 years of soil development.

USGS field crew group picture
June 28, 2013

USGS Field Crew at Mattole Soil Chronosequence

USGS field crew taking a break in digging soil pits Mattole soil chronosequence.

Researchers deploying gravity corer off boat in Chukchi Sea.
August 14, 2012

Deployment of a Gravity Corer

Deployment of a gravity corer aboard USCGC Healy during an expedition to the Chukchi Sea. 

Eddy covariance tower in tidal FW marsh adjacent to a forested wetland
February 27, 2012

Eddy covariance tower

USGS scientists and cooperators service an eddy covariance (EC) station located in a tidal freshwater marsh at Salvador Wildlife Management Area, Louisiana, USA. EC stations allow agency scientists to asses the net exchange of CO2 and CH4 from wetlands over large spatial scales, and help determine the carbon sequestration capacity of managed marshes while also considering

Marine terraces in California
June 30, 2009

Marine Terraces near Santa Cruz, CA

Marine terraces North of Santa Cruz, California.  For information on terrace formation 

Remnants of a spruce forest
December 31, 1969

Remnants of a spruce forest

Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site. Wildland fires typically result in the reduction of


Land-Cover Modeling - Alexandria, Louisiana - B2 Scenario

Alexandria, Louisiana
2006 to 2050 Land-cover Change
IPCC SRES B2 Scenario


The IPCC SRES B2 scenario focuses on environmentally friendly lifestyles and local solutions to social and environmental problems. The emphasis on regional self-reliance results in a desire for local food and energy products. Environmental impacts on the


Land-Cover Modeling - Bismarck, North Dakota - A1B Scenario

Bismarck, North Dakota
2006 to 2050 Land-cover Change
IPCC SRES A1B Scenario

The IPCC SRES A1B scenario is marked by very high economic growth and a convergence of socioeconomic conditions. Population growth is relatively low, but a convergence of global living standards results in a high per-capita demand for food, fiber, and energy. As a


Land-Cover Modeling - Washington / Baltimore Area - A2 Scenario

Washington / Baltimore Area
2006 to 2050 Land-cover Change
IPCC SRES A2 Scenario


In the IPCC SRES A2 scenario, high population growth, an emphasis on economic growth over environmental conservation, and high demand for food, fiber, and energy resources lead to expansion of the human footprint on the landscape. "Anthropogenic" land


Land-Cover Modeling - Phoenix, Arizona - B1 Scenario

Phoenix, Arizona
2006 to 2050 Land-cover Change
IPCC SRES B1 Scenario


The IPCC SRES B1 scenario focuses on environmentally friendly lifestyles and a global cooperation and communication. Impacts on the natural landscape are minimized as efficiencies in food and energy production are accompanied by more compact urban development.