Assessing the Potential of Trees for Afforestation of Degraded Landscapes in the Aral Sea Basin of Uzbekistan

Khamzina, Asia; Lamers, John P. A.; Worbes, Martin; Botman, Evgeniy; Vlek, Paul L. G.

doi:10.1007/s10457-005-4677-1

Cited by 57 publications

(38 citation statements)

References 5 publications

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“…The ideal multipurpose species should combine a number of features such as high survival rates, quick growth, halophytic and xerophytic characteristics, and high utility value of firewood or foliage (Khamzina et al 2006) since financial returns are key to farmers (Landsberg 1999a). For biodrainage purposes, additional characteristics such as WU and salinity tolerance should be included as selection criteria.…”

Section: Discussionmentioning

confidence: 99%

“…Both sites were leveled and leached from salts in the beginning of the study period, which provided homogeneity of initial growing conditions. More details on soil properties and methods for soil analysis are reported in Khamzina et al (2006).…”

Section: Description Of the Study Sitesmentioning

confidence: 99%

“…pyramidalis. In addition to the biodrainage potential, the fruit producing and N-fixing E. angustifolia and, to a lesser extent, U. pumila also ranked top as potential suppliers of high quality supplementary fodder (Khamzina et al 2006) and, therefore, may provide concurrent economic advantages to farmers.…”

Section: Water Use Efficiencymentioning

confidence: 99%

“…An effort was made to identify those species which combined a high WU with salinity tolerance and an ability to rapidly produce high quality fodder and fuelwood (Khamzina et al 2006), as this may increase farmers' willingness for adopting the low-cost biodrainage technology.…”

Section: Introductionmentioning

confidence: 99%

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Potential of nine multipurpose tree species to reduce saline groundwater tables in the lower Amu Darya River region of Uzbekistan

Khamzina¹,

Lamers²,

Martius³

et al. 2006

Agroforest Syst

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This paper evaluates the potential of nine multipurpose tree species for afforestation of degraded land in the Khorezm region, Central Asia, particularly their suitability for biodrainage i.e., lowering the elevated groundwater table through the transpirative capacity of plantations. For this purpose water use (WU), water use efficiency (WUE) and tree physiological factors influencing transpiration were assessed during two consecutive years. Mean daily leaf transpiration differed significantly among the species and ranged during the seasons from 4.5-5.2 mmol m -2 s -1 for Prunus armeniaca L. to 4.5-10 mmol -2 s -1 for Elaeagnus angustifolia L. WU differences were triggered by species physiological features such as capability of water uptake by roots. Transpiration rates and the length of fine roots correlated highly (r = 0.7). Correlations of leaf transpiration rates with leaf area were weaker (r = 0.6). No correlations were found between salt content in plants and water uptake under conditions of slight-tomoderate rootzone soil salinity. Values of WUE per root and shoot DM were similar averaging, respectively, 0.2 and 0.3 g DM g -1 water for twoyear-old trees, and decreased with age. In addition to WU characteristics, also salinity tolerance, growth rate and the ability to produce fodder and fuelwood must be considered during species selection. Regarding these features, the N-fixing E. angustifolia ranked the highest, combining high WU, fast growth and production of nutritious feed. Examined Populus spp. and Ulmus pumila L. ranked lower but still represented potential candidates for biodrainage purposes. Typical fruit species in the region such as P. armeniaca and Morus alba, showed low biodrainage potential.

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Section: Discussionmentioning

confidence: 99%

Section: Description Of the Study Sitesmentioning

confidence: 99%

Section: Water Use Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Potential of nine multipurpose tree species to reduce saline groundwater tables in the lower Amu Darya River region of Uzbekistan

Khamzina¹,

Lamers²,

Martius³

et al. 2006

Agroforest Syst

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“…P. trichocarpa is natively found along rivers and streams of western North America, and may be sensitive to water limitation (Street et al 2006, Bogeat-Triboulot et al 2007, Isebrands & Richardson 2014. P. nigra is native to Europe and can be found in riparian habitats as well as in arid regions (Thieret 1982, Khamzina et al 2006). P. nigra shows a wide range of adaptive mechanisms in response to drought, which is probably caused by its genomic plasticity (Viger & Taylor 2012).…”

Section: Shallow Soil Restricts Poplar Productivitymentioning

confidence: 99%

Growth performance and nitrogen use efficiency of two Populus hybrid clones (P. nigra × P. maximowiczii and P. trichocarpa × P. maximowiczii) in relation to soil depth in a young plantation

Euring¹,

Ayegbeni²,

Jansen³

et al. 2016

iForest

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Growth performance and nitrogen use efficiency of two Populus hybrid clones (P. nigra × P. maximowiczii and P. trichocarpa × P. maximowiczii) in relation to soil depth in a young plantation Dejuan Euring It is a challenge to produce woody crops on marginal land. The goal of this study was to examine growth responses and nitrogen use efficiency of different poplar species on shallow soil. Typical biomass poplar clones of Max1 (P. nigra × P. maximowiczii) and H275 (P. trichocarpa × P. maximowiczii) were planted on a marginal site where a gradient in soil depth was present. The growth, biomass production, and nitrogen uptake rate as well as nitrogen use efficiency of Max1 and H275 were determined for three consecutive years. Both poplar clones showed decreased growth and biomass production in the shallow soil. Max1 showed better adaptation to shallow soil with higher survival rate and more biomass production than H275. Max1 had lower nitrogen use efficiency on shallow soil than H275. The results suggest that higher nitrogen uptake of poplar species might be an important adaptation to maintain productivity under unfavorable soil conditions. Keywords: Biomass, Nitrogen Use Efficiency, Poplar, Shallow Soil IntroductionWoody biomass is considered as a sustainable alternative source of energy for fossil fuels (Pleguezuelo et al. 2015). Short rotation woody crops such as poplar trees (Populus spp.) are well suited for woody biomass production because they are highly productive and can be managed using agronomic techniques (Kauter et al. 2003). To avoid competition for fertile land with food production, poplar plantations are expected to be established on marginal land which is less suitable for agriculture because of limited water and nutrient availability (Shortall 2013). Since the productivity of a poplar plantation depends on the proper selection of genotypes (Zalesny et al. 2011), research is needed to identify poplar cultivars with high survival rates, high biomass productivity and high disease resistance for cultivation on marginal soil ).Shallow soil with limited rooting depth, low drainage and high stone content are typical features of marginal land (Jiang et al. 2014). Rooting depth is an important determinant for the successful establishment and production of woody biomass (Burgess et al. 2015). N storage and cycling are vital processes for growth, adaptation and productivity of poplar trees (Millard & Grelet 2010). N storage and remobilization are particularly important to meet the N demand of forest trees for continuous growth (Rennenberg et al. 2010). Poplar species differ in the way they take up and assimilate N (Luo et al. 2013, Gan et al. 2015, which may impact their competitive ability for soil nutrients and resistance to environmental stresses (Castro-Rodríguez et al. 2015, Molina-Rueda & Kirby 2015. Several studies have focused on identifying and quantifying the best management practices to successfully establish hybrid poplar plantations under different nitrogen regimes (Lee & Jose 2003, Euring et al....

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Review and Case Studies on Biodrainage: An Alternative Drainage System to Manage Waterlogging and Salinity

Singh

Lal

2018

Irrigation and Drainage

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Waterlogging and its associated soil salinity are a major impediment to the sustainability of irrigated agriculture. Although conventional engineering drainage technologies such as subsurface or vertical drainage combat the problem, they are costly and generate huge quantities of effluent which is difficult to dispose of. Biodrainage, which removes excess soil water by deep‐rooted fast‐growing trees through evapotranspiration using bioenergy, is an appropriate alternative. Plant consumptive water use varies between 6500 and 28 000 m3 ha‐1 yr‐1 and an ideal tree plantation lowers groundwater tables by 1–2 m over a time period of 3–5 years. Trees such as Eucalyptus, Populus, Casuarina, Dalbergia, Syzigium, Acacia, Prosopis, Leucaena, etc. are found to be effective in lowering shallow groundwater tables and reversing salinity trends. Integration of trees such as Eucalyptus and Populus along with crops in a unified agroforestry system, on approach roads, field bunds or on dykes of ponds in an integrated farming system, is another viable proposition. Irrigation of highly transpiring trees has also been proposed for reuse of wastewater and conservation of nutrient energy into biomass, leading to carbon sequestration, environmental sanitation and eco‐restoration. For effective understanding and implementation, several case studies on the role of biodrainage for managing waterlogging and salinity are discussed in this paper. Copyright © 2018 John Wiley & Sons, Ltd.

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Assessing the Potential of Trees for Afforestation of Degraded Landscapes in the Aral Sea Basin of Uzbekistan

Cited by 57 publications

References 5 publications

Potential of nine multipurpose tree species to reduce saline groundwater tables in the lower Amu Darya River region of Uzbekistan

Potential of nine multipurpose tree species to reduce saline groundwater tables in the lower Amu Darya River region of Uzbekistan

Growth performance and nitrogen use efficiency of two Populus hybrid clones (P. nigra × P. maximowiczii and P. trichocarpa × P. maximowiczii) in relation to soil depth in a young plantation

Review and Case Studies on Biodrainage: An Alternative Drainage System to Manage Waterlogging and Salinity

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