{"title":"Assessment of organic carbon dynamics in podzolized chernozem soil in field crop rotation under the climate change","authors":"A. Polevoy, L. Bozko","doi":"10.33581/2521-6740-2019-2-65-78","DOIUrl":null,"url":null,"abstract":"The work presents assessment of organic carbon in the soil and СО2 – C emissions for the ten-field crop rotation in a changing climate conditions. The expected weather conditions for the 2021–2050 are estimated with RCP4.5 and RCP8.5 models. The research uses the updated model for the soil carbon cycle RothC-26.3, which describes the dynamics of four active and one inert compartments of the soil organic matter. The numerical studies consider three variants of the ten-fields crops rotation: 1) growing crops without fertilizing; 2) fertilization with mineral fertilizers in N45 P45 K45 and N90P90K 90 doses; 3) fertilization with organic fertilizers in the amounts of 9 and 18 t/ha. The research object is the balance of organic carbon in the soil and СО2 – C emissions from all crop rotation fields and the singular crop rotation field in the climate change conditions.","PeriodicalId":52778,"journal":{"name":"Zhurnal Belorusskogo gosudarstvennogo universiteta Geografiia geologiia","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zhurnal Belorusskogo gosudarstvennogo universiteta Geografiia geologiia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33581/2521-6740-2019-2-65-78","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The work presents assessment of organic carbon in the soil and СО2 – C emissions for the ten-field crop rotation in a changing climate conditions. The expected weather conditions for the 2021–2050 are estimated with RCP4.5 and RCP8.5 models. The research uses the updated model for the soil carbon cycle RothC-26.3, which describes the dynamics of four active and one inert compartments of the soil organic matter. The numerical studies consider three variants of the ten-fields crops rotation: 1) growing crops without fertilizing; 2) fertilization with mineral fertilizers in N45 P45 K45 and N90P90K 90 doses; 3) fertilization with organic fertilizers in the amounts of 9 and 18 t/ha. The research object is the balance of organic carbon in the soil and СО2 – C emissions from all crop rotation fields and the singular crop rotation field in the climate change conditions.