Print Friendly and PDF


Advanced Search Results Detail

Project ID: 14-1-06-19

Year: 2014

Date Started: 09/01/2014

Ending Date:  08/31/2017

Title: Forest fire alters disinfection byproduct precursor exports from forested watersheds

Project Proposal Abstract: Detritus material in forested watersheds is the major terrestrial source of dissolved organic matter (DOM) and disinfection byproduct (DBP) precursors in source waters. Carcinogenic DBPs, such as trihalomethanes (THMs) and haloacetic acids (HAAs), are formed when DOM reacts with disinfectants such as chlorine during drinking water treatment. Many studies have examined DBP precursor exported from forested watersheds; however, DOM leaching from pyrogenic organic matter, or dissolved black carbon (BC), could have different treatability and reactivity in DBP formation compared to the DOM leaching from unburned detritus layer. Also, fire intensity is an important factor governing the yields and speciation of BC produced during forest fire and eventually affects the quantity and quality of DOM exported from the watersheds. Here, we propose a three-year project involving controlled-field and watershed-monitoring studies to evaluate prescribed burning practices and landscape processes on the formation and exports of DBP precursors and dissolved BC from managed forested watersheds. Detritus materials will be collected from experimental plots with different burning schedules and frequency and will be incubated under field conditions. Water collected from different management practices at different times will be characterized and tested for their water treatability, including propensities in DBP formation and removal efficiencies in coagulation-flocculation processes. In addition, an unmanaged and a managed 1st order watershed at Santee Experimental Forest South Carolina have been monitored for DOM exports since 2003 and will be used to evaluate the landscape processes on the exports of DBP precursors and dissolved BC. With the results of the control study and field investigation, a box model describing productions and characteristics of DBP precursors in managed forested ecosystems under different fire practices will be developed.

Principal Investigator: Alex T. Chow

Agency/Organization: Clemson University

Branch or Dept: Department of Forestry & Natural Resources


Other Project Collaborators

Type

Name

Agency/Organization

Branch or Dept

Agreements Contact

Pamela D. Brown

Clemson University

Office of Sponsored Programs

Budget Contact

Pamela D. Brown

Clemson University

Office of Sponsored Programs

Co-Principal Investigator

Randy A. Dahlgren

University of California-Davis

Department of Land, Air and Water Resources

Co-Principal Investigator

Francisco J. Diaz

University of La Laguna

Department of Soil Science and Geology

Co-Principal Investigator

Carl C. Trettin

Forest Service

SRS-Santee Experimental Forest

Co-Principal Investigator

Geoff G. Wang

Clemson University

Department of Forestry & Natural Resources


Project Locations

Consortium

South


Level

State

Agency

Unit

STATE

SC

FS

Francis Marion National Forests

STATE

SC

PRIVATE

Private lands


Project Deliverables

There is no final report available for this project.
There are no deliverables available for this project.

Supporting Documents

There are no supporting documents available for this project.

Convert PDF documents to an html document using Adobe's online conversion tool.
Download Adobe Acrobat Reader