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Keyword: land use

Fire and land cover change in the Palouse Prairie-forest ecotone, Washington and Idaho, USA

Publications Posted on: August 10, 2020
Prairie-forest ecotones are ecologically important for biodiversity and ecological processes. While these ecotones cover small areas, their sharp gradients in land cover promote rich ecological interaction and high conservation value. Our objective was to understand how historical and current fire occurrences and human development influenced the Palouse Prairie-forest ecotone.

Evidence of widespread topoclimatic limitation for lower treelines of the Intermountain West, United States

Publications Posted on: July 27, 2020
Many forests in dry mountain regions are characterized by a lower elevational treeline. Understanding the controls on the position of lower treeline is important for predicting future forest distributional shifts in response to global environmental change.

Baseline and novel ecosystems in Michigan, USA, with a quantitative and qualitative assessment

Publications Posted on: July 22, 2020
Pre-Euro-American settlement vegetation provides information about historical ecology. I evaluated baseline conditions and novel status of current forests in Michigan using historical (1836 to 1858) and current (2010–2015) surveys and assessed quantitative and qualitative measures of novel status. Aspen (increased from 2% to 11% of all trees) and red maple (

History of forest soils knowledge and research [Chapter 4]

Publications Posted on: June 25, 2020
Human history is intricately linked to the soil. As human populations increased agricultural land use intensified. Wood availability was also important and resulted in the management of forested land for fuel, fiber and food. Soil mapping was an essential tool in planning future expansion of agriculture and resulted in an increased understanding in the factors that regulate soil formation.

Compounded heat and fire risk for future U.S. populations

Publications Posted on: June 10, 2020
Climate change is increasing the risk of extreme events, resulting in social and economic challenges. I examined recent past (1971–2000), current and near future (2010-2039), and future (2040-2069) fire and heat hazard combined with population growth by different regions and residential densities (i.e., exurban low and high densities, suburban, and urban low and high densities). Regional values for extreme fire weather days varied greatly.

After restoration of open forests, do changes in ecological processes follow?

Projects Posted on: March 31, 2020
Open oak and pine forests, which typically have a treed overstory and grasslands understory, historically were abundant across the United States. Agency investment in large-scale restoration programs begs the question: Do changes of ecological processes follow restoration of structure? 

Defining the United States land base: a technical document supporting the USDA Forest Service 2020 RPA assessment

Publications Posted on: March 31, 2020
The Resources Planning Act (RPA) Assessment uses a combination of land use and land cover data to evaluate trends in the United States land base and project future changes. This publication describes how the RPA Assessment uses the National Resources Inventory, National Land Cover Database, and Forest Inventory and Analysis to support analyses of forest trends.

Methods for the measurement of infiltration

Publications Posted on: February 19, 2020
The measurement of infiltration has, in recent years, assumed increasing importance as a means of estimating the relative absorptive capacities of soils under different vegetal types or kinds of land use. The utility of infiltration-criteria rests partly on the assumption that surface-runoff in any appreciable volume is deleterious and that it results in movement of soil and in excessive peak-rates of stream-flow.

Soils and physical conditions of Manitou Experimental Forest

Publications Posted on: February 19, 2020
A survey was made of the soils and the physical conditions of the Manitou Experimental Forest during the summers of 1946, 1947, and 1948. The survey was made as a basis for (1) selection of sites for future experiments, (2) interpretation of results for experiments already in progress, and (3) obtaining a detailed knowledge of the soils of an area representative of the Pike National Forest and much of the Colorado Front Range.

Notes from the Manitou Experimental Forest

Publications Posted on: February 19, 2020
The Manitou Experimental Forest is a branch of the Rocky Mountain Forest and Range Experiment Station. It is in the Pike National Forest, 28 miles north and west of Colorado Springs. This experimental area of 26 square miles was established in 1936 to study problems of watershed management, grazing, and other kinds of land use in the Front Range of the Colorado Rockies.