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
 

GeoTreesearch


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

(2.03 MB bytes)

Title: Forest and water relationships: hydrologic implications of forestation campaigns in China

Author: Sun, Ge; Zhou, Guoyi; Zhang, Zhiqiang; Wei, Xiaohua; McNulty, Steven G.; Vose, James

Date: 2005

Source: Nanchang, Jiangxi Province, China:

Publication Series: Miscellaneous Publication

Description: Reforestation and afforestation (referred to forestation thereafter) campaigns in the past two decades have resulted in great increases in both forest land area and forest ecosystem productivity in China. Although the ecological benefits of forests are well accepted, the hydrologic consequences of man-made forests by forestation are unclear. Debate and confusion on the hydrologic effects of forestation practices in China remain due to lack of convincing experimental data. This paper reviews worldwide research on the relationship between forest cover and watershed hydrology with special focus on hydrologic effects of reforestation. We limited our review to research conducted using the 'paired watershed' approach. We found most of the existing literature suggests that forestation has potential to reduce annual water yield and baseflow, but have limited effects on peakflow rates and flooding events. We found that the variability of the hydrologic effects is large due to differences in watershed hydrologic processes which are controlled by climate, soils, and the stage of vegetation development. We predict that forestation campaigns in China are not likely to cause large scale changes in streamflow water yield, baseflow, and flood peaks before the hydrologic properties of degraded soils are fully improved. However, baseflow and annual water yield may be reduced in small watersheds to affect local water supply. This situation may be especially true for the semi-arid Loess Plateau region and other areas of Northern China where water shortages are already common. We suggest forest hydrology research should focus on the impacts of forestation on hydrologic processes using a paired watershed approach. Comprehensive science-based evaluation of the positive or negative roles of forest on regulating regional water resources is critical to the current forestation endeavors in China.

Keywords: Forest hydrology, forestation, hydrologic impacts, China

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.
  • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Sun, Ge; Zhou, Guoyi; Zhang, Zhiqiang; Wei, Xiaohua; McNulty, Steven G.; Vose, James 2005. Forest and water relationships: hydrologic implications of forestation campaigns in China. Nanchang, Jiangxi Province, China:

 


 [ 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.