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Evapotranspiration of Artemisia ordosica vegetation in stabilized arid desert dune in Shapotou, China

Wang, XP; Kang, ES; Zhang, JG; Li, XR and Berndtsson, Ronny LU (2004) In Arid Land Research and Management 18(1). p.63-76
Abstract
More than 40 years of revegetation using mainly Artemisia ordosica, Hedysarum scoparium, and Caragana korshinskii at Shapotou Desert Experimental Research Station near Lanzhou has established a dwarf-shrub and herbaceous cover on the stabilized sand dunes. The evapotranspiration (ET) of the xerophyte dwarf-shrub A. ordosica plant vegetation was measured by the autoweighing lysimeter method during the growing seasons from 1990 to 1995, and 2002 on the southeast edge of the Tengger Desert at Shapotou, China. The study showed that the average ET rates were 0.88 mm d(-1), and they varied from 0.6 mm d(-1) to 1.31 mm d(-1) during the 7-year experimental period from 1990 to 1995, and 2002. The ratios of ET/Precipitation (P) varied from 69.8% to... (More)
More than 40 years of revegetation using mainly Artemisia ordosica, Hedysarum scoparium, and Caragana korshinskii at Shapotou Desert Experimental Research Station near Lanzhou has established a dwarf-shrub and herbaceous cover on the stabilized sand dunes. The evapotranspiration (ET) of the xerophyte dwarf-shrub A. ordosica plant vegetation was measured by the autoweighing lysimeter method during the growing seasons from 1990 to 1995, and 2002 on the southeast edge of the Tengger Desert at Shapotou, China. The study showed that the average ET rates were 0.88 mm d(-1), and they varied from 0.6 mm d(-1) to 1.31 mm d(-1) during the 7-year experimental period from 1990 to 1995, and 2002. The ratios of ET/Precipitation (P) varied from 69.8% to 120.9% with an average of 90.9%. The higher ET/P value in 1991 was associated with the properties of intra year distribution of rainfall events, and resulted in soil moisture depletion. The correlation between the accumulative P and the accumulative ET was quite high. For the years 1990, 1993, and 1995, the relationship between the accumulative ET and the accumulative P had a closed linear relationship, resulting from the higher intensity of monthly P exceeding 40% of the overall P during the growing season. Whatever the variation in the monthly P, statistics showed that the relationship between the accumulative P and ET could be expressed as an equation, ET=0.8003 P+5.8914, with a correlation coefficient of R-2=0.9035. Results suggest that in areas similar to Shapotou it is practical to establish an artificial protection belt using xerophytic shrubs. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
scoparium, Hedysarum, auto weighing lysimeter, erosion control, xerophytic shrub, Caragana korshinskii
in
Arid Land Research and Management
volume
18
issue
1
pages
63 - 76
publisher
Taylor & Francis
external identifiers
  • wos:000186577400006
  • scopus:1642443222
ISSN
1532-4982
DOI
10.1080/15324980490245022
language
English
LU publication?
yes
id
e766896f-b911-4c64-900a-819144f25c86 (old id 295691)
date added to LUP
2007-11-05 10:40:53
date last changed
2017-01-01 04:51:05
@article{e766896f-b911-4c64-900a-819144f25c86,
  abstract     = {More than 40 years of revegetation using mainly Artemisia ordosica, Hedysarum scoparium, and Caragana korshinskii at Shapotou Desert Experimental Research Station near Lanzhou has established a dwarf-shrub and herbaceous cover on the stabilized sand dunes. The evapotranspiration (ET) of the xerophyte dwarf-shrub A. ordosica plant vegetation was measured by the autoweighing lysimeter method during the growing seasons from 1990 to 1995, and 2002 on the southeast edge of the Tengger Desert at Shapotou, China. The study showed that the average ET rates were 0.88 mm d(-1), and they varied from 0.6 mm d(-1) to 1.31 mm d(-1) during the 7-year experimental period from 1990 to 1995, and 2002. The ratios of ET/Precipitation (P) varied from 69.8% to 120.9% with an average of 90.9%. The higher ET/P value in 1991 was associated with the properties of intra year distribution of rainfall events, and resulted in soil moisture depletion. The correlation between the accumulative P and the accumulative ET was quite high. For the years 1990, 1993, and 1995, the relationship between the accumulative ET and the accumulative P had a closed linear relationship, resulting from the higher intensity of monthly P exceeding 40% of the overall P during the growing season. Whatever the variation in the monthly P, statistics showed that the relationship between the accumulative P and ET could be expressed as an equation, ET=0.8003 P+5.8914, with a correlation coefficient of R-2=0.9035. Results suggest that in areas similar to Shapotou it is practical to establish an artificial protection belt using xerophytic shrubs.},
  author       = {Wang, XP and Kang, ES and Zhang, JG and Li, XR and Berndtsson, Ronny},
  issn         = {1532-4982},
  keyword      = {scoparium,Hedysarum,auto weighing lysimeter,erosion control,xerophytic shrub,Caragana korshinskii},
  language     = {eng},
  number       = {1},
  pages        = {63--76},
  publisher    = {Taylor & Francis},
  series       = {Arid Land Research and Management},
  title        = {Evapotranspiration of Artemisia ordosica vegetation in stabilized arid desert dune in Shapotou, China},
  url          = {http://dx.doi.org/10.1080/15324980490245022},
  volume       = {18},
  year         = {2004},
}