Salinity of Irrigated and Non-Irrigated Chernozems and Kastanozems: A Case Study of Causes and Consequences in the Pavlodar Region, Kazakhstan

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73634961" target="_blank" >RIV/61989592:15310/25:73634961 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2571-8789/9/2/57" target="_blank" >https://www.mdpi.com/2571-8789/9/2/57</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/soilsystems9020057" target="_blank" >10.3390/soilsystems9020057</a>

Result language

angličtina

Original language name

Salinity of Irrigated and Non-Irrigated Chernozems and Kastanozems: A Case Study of Causes and Consequences in the Pavlodar Region, Kazakhstan

Original language description

This study investigated soil salinization processes in the Pavlodar region of Kazakhstan by comparing key soil parameters-namely, electrical conductivity (EC), pH, exchangeable sodium percentage (ESP), and sodium adsorption ratio (SAR) under irrigated and non-irrigated conditions across different agro-climatic zones and soil types (Haplic Chernozems, Haplic Kastanozems). The focus was on understanding the effects of irrigation and natural factors on soil salinization. Statistical analysis, including descriptive statistics and significance testing, was employed to evaluate differences between soil types, locations, and management practices. The research revealed secondary salinization (EC &gt; 2 dS/m, ESP &gt; 15%) in the topsoil of irrigated Haplic Kastanozems soils in the central Aksu district. This degradation was markedly higher than in non-irrigated plots or irrigated Haplic Chernozems in the northern Irtysh district, highlighting the high vulnerability of Haplic Kastanozems soils under current irrigation management given Aksu&apos;s climatic conditions, which are characterized by high evaporative demand (driven by summer temperatures) and specific precipitation patterns that contribute to soil moisture deficits without irrigation. While ESP indicated sodicity, SAR values remained low. Natural factors, including potentially saline parent materials and likely shallow groundwater dynamics influenced by irrigation, appear to contribute to the observed patterns. The findings underscore the need for implementing optimized irrigation and drainage management, particularly in the Aksu district, potentially including water-saving techniques (e.g., drip irrigation) and selection of salt/sodicity-tolerant crops. A comprehensive approach integrating improved water management, agronomic practices, and potentially soil amendments is crucial for mitigating soil degradation and ensuring sustainable agriculture in the Pavlodar region. Further investigation including groundwater monitoring is recommended.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10618 - Ecology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soil Systems

ISSN

—

e-ISSN

2571-8789

Volume of the periodical

9

Issue of the periodical within the volume

2

Country of publishing house

CH - SWITZERLAND

Number of pages

34

Pages from-to

"57-1"-"57-34"

UT code for WoS article

001516663300001

EID of the result in the Scopus database

2-s2.0-105009257176