USDA Forest Service

Aquatic and Land Interactions Program

Pacific Northwest Research Station
USFS Research & Development
Research at Mount St. Helens
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Pacific Northwest Research Station
Aquatic & Land Interactions Program
3625 93rd Ave. SW
Olympia, WA 98512

(360) 753-7747

Aquatic & Land Interactions Program Logo.

United States Department of Agriculture Forest Service.

Our Mission

The mission of the Aquatic and Land Interactions (ALI) Program is to increase understanding of the effects of natural processes and human activities on interactions between aquatic and terrestrial ecosystems, with emphasis on understanding the effects of land management on watershed processes and associated biota (e.g., salmonids, amphibians) in the Pacific Northwest.

We also develop assessment tools to assist managers and decision makers in achieving sustainability at multiple spatial and temporal scales. The scope and scale of natural resources research includes site-specific and process-specific studies that fill narrow gaps in knowledge, as well as watershed- and landscape-scale studies that attempt to address processes, functions, and structure of ecosystems.

An important element of the program mission is to discover general relationships and processes that are not limited to a specific geographic locality. Applications of the research will be most direct within the region where the work was done, but much of the knowledge will be broadly applicable and transferable to other geographic regions and ecosystems.


Research Highlights

Culvert.Arrow. Understanding the effects of land management activities and natural disturbances on aquatic ecosystems at the reach, the watershed, and the landscape scales.

Arrow. Quantifying processes affecting productivity of stream habitats.

Arrow. Riparian ecosystem management in western Washington.

Arrow. Aquatic and riparian ecosystem management and restoration strategies in eastern Washington and Oregon.



Featured Research Products

The Geomorphic Responses of Rivers to Dams presents streaming video presentations of a short course designed for the scientific staffs of the National Forest System.

The Geomorphic Responses of Rivers to Dams CR-ROM set.



Coastal Landscape Analysis and Modeling System (CLAMS)


Coastal Landscape Analysis and Modeling System (CLAMS).


Fish-Xing 3.0

Interactive software tool FishXing (v. 3.0)



USDA Forest Service - Pacific Northwest Research Station, Aquatic and Land Interactions Program
Last Modified: Monday, 16 December 2013 at 14:18:58 CST

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