Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (837 KB)

Title: Functional response of U.S. grasslands to the early 21st-century drought

Author: Moran, M. Susan; Ponce-Campos, Guillermo E.; Huete, Alfredo; McClaran, Mitchel P.; Zhang, Yongguang; Hamerlynck, Erik P.; Augustine, David J.; Gunter, Stacey A.; Kitchen, Stanley G.; Peters, Debra P. C.; Starks, Patrick J.; Hernandez, Mariano;

Date: 2014

Source: Ecology. 95(8): 2121-2133.

Publication Series: Scientific Journal (JRNL)

Description: Grasslands across the United States play a key role in regional livelihood and national food security. Yet, it is still unclear how this important resource will respond to the prolonged warm droughts and more intense rainfall events predicted with climate change. The early 21st-century drought in the southwestern United States resulted in hydroclimatic conditions that are similar to those expected with future climate change. We investigated the impact of the early 21st-century drought on aboveground net primary production (ANPP) of six desert and plains grasslands dominated by C4 (warm season) grasses in terms of significant deviations between observed and expected ANPP. In desert grasslands, drought-induced grass mortality led to shifts in the functional response to annual total precipitation (PT), and in some cases, new species assemblages occurred that included invasive species. In contrast, the ANPP in plains grasslands exhibited a strong linear function of the current-year PT and the previous-year ANPP, despite prolonged warm drought. We used these results to disentangle the impacts of interannual total precipitation, intra-annual precipitation patterns, and grassland abundance on ANPP, and thus generalize the functional response of C4 grasslands to predicted climate change. This will allow managers to plan for predictable shifts in resources associated with climate change related to fire risk, loss of forage, and ecosystem services.

Keywords: climate change, desert, extreme events, grassland production, invasive species, plains, precipitation variability, resilience, warm drought

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Moran, M. Susan; Ponce-Campos, Guillermo E.; Huete, Alfredo; McClaran, Mitchel P.; Zhang, Yongguang; Hamerlynck, Erik P.; Augustine, David J.; Gunter, Stacey A.; Kitchen, Stanley G.; Peters, Debra P. C.; Starks, Patrick J.; Hernandez, Mariano. 2014. Functional response of U.S. grasslands to the early 21st-century drought. Ecology. 95(8): 2121-2133.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.