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Water balance change for a re-vegetated xerophyte shrub area

Wang, XP; Berndtsson, Ronny LU ; Li, XR and Kang, ES (2004) In Hydrological Sciences Journal 49(2). p.283-295
Abstract
Water balances for a re-vegetated xerophyte shrub (Caragana korshinskii) area were compared to that of a bare surface area by using auto-weighing type lysimeters during the 1990-1995 growing seasons at the southeast Tengger Desert, Shapotou, China. The six-year experiment displayed how major daily water balance components might vary for a bare and a re-vegetated sand dune area. Evapotranspiration from the C korshinskii lysimeter represented a major part of the water balance. The average annual ET/P ratios varied between 69 and 142%. No seepage was observed for the vegetated lysimeter. For the bare lysimeter, on the other hand, 48 rum or 27% of observed rainfall per year occurred as seepage. These results suggest that re-vegetating large... (More)
Water balances for a re-vegetated xerophyte shrub (Caragana korshinskii) area were compared to that of a bare surface area by using auto-weighing type lysimeters during the 1990-1995 growing seasons at the southeast Tengger Desert, Shapotou, China. The six-year experiment displayed how major daily water balance components might vary for a bare and a re-vegetated sand dune area. Evapotranspiration from the C korshinskii lysimeter represented a major part of the water balance. The average annual ET/P ratios varied between 69 and 142%. No seepage was observed for the vegetated lysimeter. For the bare lysimeter, on the other hand, 48 rum or 27% of observed rainfall per year occurred as seepage. These results suggest that re-vegetating large sandy areas with xerophytic shrubs could reduce soil water storage by transpiration. Also, the experimental results indicate that revegetating large sandy areas could significantly change groundwater recharge conditions. However, from a viewpoint of desert ecosystem reconstruction, it appears that natural rainfall can sustain xerophytic shrubs such as C. korshinskii which would reduce erosion loss of sand. However, re-vegetation has to be balanced with recharge/ groundwater needs of local populations. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
evapotranspiration, re-vegetated desert, water balance, semiarid area, xerophytic shrub, area
in
Hydrological Sciences Journal
volume
49
issue
2
pages
283 - 295
publisher
IAHS Press
external identifiers
  • wos:000220582600007
  • scopus:2342593367
ISSN
0262-6667
DOI
10.1623/hysj.49.2.283.34841
language
English
LU publication?
yes
id
7f6d940c-5e14-42d8-827d-6a662b6caa3c (old id 282976)
date added to LUP
2007-11-05 10:37:08
date last changed
2017-08-27 05:08:48
@article{7f6d940c-5e14-42d8-827d-6a662b6caa3c,
  abstract     = {Water balances for a re-vegetated xerophyte shrub (Caragana korshinskii) area were compared to that of a bare surface area by using auto-weighing type lysimeters during the 1990-1995 growing seasons at the southeast Tengger Desert, Shapotou, China. The six-year experiment displayed how major daily water balance components might vary for a bare and a re-vegetated sand dune area. Evapotranspiration from the C korshinskii lysimeter represented a major part of the water balance. The average annual ET/P ratios varied between 69 and 142%. No seepage was observed for the vegetated lysimeter. For the bare lysimeter, on the other hand, 48 rum or 27% of observed rainfall per year occurred as seepage. These results suggest that re-vegetating large sandy areas with xerophytic shrubs could reduce soil water storage by transpiration. Also, the experimental results indicate that revegetating large sandy areas could significantly change groundwater recharge conditions. However, from a viewpoint of desert ecosystem reconstruction, it appears that natural rainfall can sustain xerophytic shrubs such as C. korshinskii which would reduce erosion loss of sand. However, re-vegetation has to be balanced with recharge/ groundwater needs of local populations.},
  author       = {Wang, XP and Berndtsson, Ronny and Li, XR and Kang, ES},
  issn         = {0262-6667},
  keyword      = {evapotranspiration,re-vegetated desert,water balance,semiarid area,xerophytic shrub,area},
  language     = {eng},
  number       = {2},
  pages        = {283--295},
  publisher    = {IAHS Press},
  series       = {Hydrological Sciences Journal},
  title        = {Water balance change for a re-vegetated xerophyte shrub area},
  url          = {http://dx.doi.org/10.1623/hysj.49.2.283.34841},
  volume       = {49},
  year         = {2004},
}