Top soil physical and chemical properties in Kazakhstan across a north-south gradient

Vadim Yapiyev, Charles P. Gilman, Tolganay Kabdullayeva, Akmaral Suleimenova, Aizhan Shagadatova, Azat Duisembay, Sanzhar Naizabekov, Saule Mussurova, Kamilya Sydykova, Ilyas Raimkulov, Ilyas Kabimoldayev, Ainagul Abdrakhmanova, Symbat Omarkulova, Dastan Nurmukhambetov, Aliya Kudarova, Daniyar Malgazhdar, Christian Schönbach, Vassilis Inglezakis

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Kazakhstan's soil properties have yet to be comprehensively characterized. We sampled 40 sites consisting of ten major soil types at spring (wet) and late-summer (dry) seasons. The sample locations range from semi-arid to arid with an annual mean air temperature from 1.2 to 10.7 °C and annual precipitation from less than 200 to around 400 mm. Overall topsoil total (STC), organic (SOC), and inorganic (SIC) carbon did not change significantly between spring and late summer. STC and SOC show a wave like pattern from north to south with two maxima in northern and southern Kazakhstan and one minimum in central Kazakhstan. With a few exceptions SIC content at northern sites is generally low, whereas at Lake Balkhash SIC can exceed 75% of STC. Independent of the seasons, SOC significantly differed among soil types. Total nitrogen content distribution among our sampling sites followed a similar pattern as SOC with significant differences between soil types occurring in northern, central and southern Kazakhstan.

Original languageEnglish
Article number180242
Number of pages1
JournalScientific data
Volume5
DOIs
Publication statusPublished - Nov 13 2018

ASJC Scopus subject areas

  • Statistics and Probability
  • Information Systems
  • Education
  • Computer Science Applications
  • Statistics, Probability and Uncertainty
  • Library and Information Sciences

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