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Environmental aspects of the black saxaul forests’ distribution in the cold semi-deserts of central asia

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dc.title Environmental aspects of the black saxaul forests’ distribution in the cold semi-deserts of central asia en
dc.contributor.author Chlachula, Jiří
dc.contributor.author Zhagloskaya, Alina A.
dc.relation.ispartof International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
dc.identifier.issn 1314-2704 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2017
utb.relation.volume 17
utb.relation.issue 32
dc.citation.spage 821
dc.citation.epage 828
dc.event.title 17th International Multidisciplinary Scientific Geoconference, SGEM 2017
dc.event.sdate 2017-06-29
dc.event.edate 2017-07-05
dc.type conferenceObject
dc.language.iso en
dc.publisher International Multidisciplinary Scientific Geoconference
dc.identifier.doi 10.5593/sgem2017/32/S13.106
dc.subject Black saxaul shrub-forests en
dc.subject SE Kazakhstan en
dc.subject Semi-deserts en
dc.subject The ili-delta en
dc.description.abstract Haloxylon aphyllum Minkw. (Black Saxaul) is the main brush-forest-forming species in Kazakhstan. While the latter is a rain-fed shrub principally distributed on sand dunes, the former is a phreatophyte, which uses groundwater as water source. Accordingly, Black Saxaul is mainly distributed on the current and ancient alluvial river terraces. Saxaul played and still plays an important role as fodder plant and fuel wood for herders. The Black Saxaul (Haloxylon aphyllum Minkw.) is the principal arboreal taxon of the continental deserts (Turanian Desert) of Central Asia between the Caspian Sea in the West and the Zhungarian Basin in the East. Due to over-grazing and over-exploitation for fuel, the once-dominant Saxaul vegetation has considerably retreated. The degradation process of the older Saxaul stands reduces the trees’ biomass. Annual productivity of the Saxaul communities largely depends on the overall vegetation density that reflects specific environmental conditions at particular locations and the determinant local hydrology regime. The potentially negative effect of the ongoing climate change-related regional aridizafication on the shrub-forest communities has not yet been demonstrably proven. On the contrary, the increased seasonal winter-spring rainfall rates meteorologically documented from SE Central Asia over the past 50 years seem to contribute to a better sustainability and rejuvenation of the local Saxaul vegetation The patterned changes in the plants’ growth parameters at different sites suggest differences in the local geomorphic, atmospheric and hydrological conditions. The investigated and geomorphologically specific settings of the Ili Delta area, including alluvial plains, riverine terraces and sand dune fields, indicate an increased revitalization rate of the Saxaul stands if not-affected by human actions (mainly firewood-use and pastoralist activities). In spite of the fact that the study sites in the present Ili delta have more favorable pedogenic–hydrological conditions for the pristine Saxaul forest expansion, negative anthropogenic effects reduce significantly the ability of woodlands for their natural revitalization and sustainment. Resilience to seasonal dryness and the plants’ capability to sustain from deep-located ground-water reservoirs apart of limited seasonal rains are the principal aspects for vegetation survival. Results from the Ili Delta field monitoring sites provide new insights on the natural reproductive potential of the Black Saxaul shrub-forests in natural and culturally disturbed places of the winter-cold semi-deserts of Central Asia with strongly continental climate regime. © SGEM2017. All Rights Reserved. en
utb.faculty Faculty of Logistics and Crisis Management
dc.identifier.uri http://hdl.handle.net/10563/1007581
utb.identifier.obdid 43877516
utb.identifier.scopus 2-s2.0-85032355873
utb.source d-scopus
dc.date.accessioned 2018-01-15T16:31:30Z
dc.date.available 2018-01-15T16:31:30Z
utb.contributor.internalauthor Chlachula, Jiří
utb.fulltext.affiliation Jiri Chlachula 1-2, Alina A. Zhagloskaya 3 1 Laboratory for Palaeoecology, DES, Tomas Bata University, Zlin, Czech Republic 2 Institute of Geoecology and Geoinformation, Adam Mickiewicz University, Poznan, Poland 3 Faculty of Biology and Biotechnology, The Al-Farabi Kazakh National University, Almaty, Republic of Kazakhstan
utb.fulltext.dates -
utb.scopus.affiliation Laboratory for Palaeoecology, DES, Tomas Bata University, Zlin, Czech Republic; Institute of Geoecology and Geoinformation, Adam Mickiewicz University, Poznan, Poland; Faculty of Biology and Biotechnology, The Al-Farabi Kazakh National University, Almaty, Kazakhstan
utb.fulltext.faculty Laboratory for Palaeoecology
utb.fulltext.ou DES
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