Understory

We explored discharge-suspended sediment relationships in 71 watersheds within nine larger basins in the North Coast of California. These watersheds are highly influenced by their tectonic setting and have a long history of timber harvest activity. We summarized these relationships by generated sediment rating curves (SRC) taking the form of a power function in log-log space: SSC = aQb. Where SSC represents suspended sediment concentration and Q represents normalized discharge. The rating parameters a and b define the vertical offset and slope of the relationship, respectively. We investigated...

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This manual documents the field procedures by the Forest Inventory and Analysis Program (FIA) in the 2019 inventory of the Hawaiian Islands.

This manual documents data collection procedures, codes, standards, and definitions used by the Pacific Northwest Research Station, Forest Inventory and Analysis (PNW-FIA) program in the 2019 annual forest inventory of Alaska.

This field guide supplemental describes the data items to record for Fire Effects and Recovery Study (FERS) plots; it is a supplement to the 2019 Field Instructions for the Annual Inventory of California, Oregon, and Washington.

This document describes the standards, codes, methods, and definitions for Forest Inventory and Analysis (FIA) field data items used for URBAN FIA inventories of San Diego, CA and Portland, OR by the PNW-FIA unit in 2019.

A collaboration between the Department of Natural and Environmental Resources (DNER) and USDA Forest Service

View the Water Supply Stress Index (WaSSI) tool.

View the Water Supply Stress Index (WaSSI) tool.

El Compendio de 2019, igual que los anteriores (2007 y 2008), tiene el objetivo de difundir y facilitar el uso de los incentivos y programas disponibles para las prácticas inteligentes de conservación de recursos naturales entre los propietarios de terrenos privados y en terrenos de dominio público en Puerto Rico. Para las agencias e instituciones encargadas de la conservación y el manejo sustentable de los recursos naturales en Puerto Rico, el Compendio es, además de una importante referencia, una herramienta práctica para facilitar la implementación de los programas e incentivos que aquí se ...