Transpiration and early growth of tree plantations established on degraded cropland over shallow saline groundwater table in northwest Uzbekistan

cg.contactasia_khamzina@korea.ac.kren_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUniversity of Bonn, Center for Development Research - Uni-Bonn - ZEFen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.countryUZen_US
cg.coverage.regionCentral Asiaen_US
cg.creator.idKhamzina, Asia: 0000-0001-5876-6410en_US
cg.creator.idSommer, Rolf: 0000-0001-7599-9056en_US
cg.date.embargo-end-dateTimelessen_US
cg.identifier.doihttps://dx.doi.org/10.1016/j.agrformet.2009.06.015en_US
cg.isijournalISI Journalen_US
cg.issn0168-1923en_US
cg.journalAgricultural and Forest Meteorologyen_US
cg.subject.agrovocsalinityen_US
cg.subject.agrovocafforestationen_US
cg.subject.agrovocarid climateen_US
cg.subject.agrovocelaeagnus angustifoliaen_US
dc.contributorSommer, Rolfen_US
dc.contributorLamers, Johannesen_US
dc.contributorVlek, Paulen_US
dc.creatorKhamzina, Asiaen_US
dc.date.accessioned2022-02-23T23:50:39Z
dc.date.available2022-02-23T23:50:39Z
dc.description.abstractThis study examined the early growth and water use of tree plantations established on a marginalized irrigated cropland in northwest Uzbekistan, where salinization of agricultural soils is widespread due to shallow saline groundwater tables. During the first two growing seasons in 2003-2004, the tree stands consisting of Elaeagnus angustifolia L., Populus euphratica Oliv., and Ulmus pumila L. were irrigated with 80 mm year(-1), and, in 2005, were left to rely on the shallow (0.9-2.0 m deep) groundwater with a salinity of 1-5 dS m(-1). Soil salinity increased but remained within the range of moderate-to-strong (4-14 dS m(-1)) during the three years. In the course of the growing season, plantations transpired 0.1-7 mm day(-1) in 2003 and 1-13 mm day(-1) in 2004-2005, as determined with the Penman-Monteith model. In the absence of irrigation, the annual stand transpiration averaged 1250, 1030, and 670 mm for E. angustifolia, P. euphratica and U. pumila, respectively. In 2005, the leaf area index of E. angustifolia ranged from 5 to 10, surpassing that of the other two species more than two-fold. Differences in canopy conductance and transpiration were significant among the tree species and the decoupling coefficient at no time exceeded 0.3, indicating strong physiological control of transpiration. The vigorous juvenile growth and high transpiration under deficit irrigation and after irrigation was terminated, suggested that afforestation with well-adapted tree species is a viable land use option for degraded cropland. The plantation responses to increasing soil salinity must be monitored to determine potential leaching demands in the long run. (C) 2009 Elsevier B.V. All rights reserved.en_US
dc.formatPDFen_US
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifier.citationAsia Khamzina, Rolf Sommer, Johannes Lamers, Paul Vlek. (3/11/2009). Transpiration and early growth of tree plantations established on degraded cropland over shallow saline groundwater table in northwest Uzbekistan. Agricultural and Forest Meteorology.en_US
dc.identifier.statusTimeless limited accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/67162
dc.languageenen_US
dc.publisherElsevier (12 months)en_US
dc.sourceAgricultural and Forest Meteorology;(2009)en_US
dc.subjectcanopy conductanceen_US
dc.subjectdecoupling coefficienten_US
dc.subjectpenman-monteith equationen_US
dc.titleTranspiration and early growth of tree plantations established on degraded cropland over shallow saline groundwater table in northwest Uzbekistanen_US
dc.typeJournal Articleen_US
dcterms.available2009-11-03en_US
mel.impact-factor5.734en_US

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