{"title":"Assessment of Organic Carbon Stocks in Arid Degraded Soils of Southern Russia","authors":"A. V. Fedotova, V. I. Emelyanenko","doi":"10.1134/S2079096125700076","DOIUrl":null,"url":null,"abstract":"<p>Arid regions have received little attention in carbon management studies so far. The results of assessment and comparison of organic carbon stocks in arid soils with different degrees of degradation in the arid zone of southern Russia (Astrakhan oblast) are provided. Based on the analysis of data characterizing 263 soil profiles, it was found that carbon stocks decrease with an increase in the degree of degradation. Significant spatial variability is observed both between and within biogeocenoses. The results showed that automorphic soils have a lower capacity for organic carbon deposition compared to hydromorphic soils. In automorphic soils, carbon stocks are 9.37 ± 1.02 t ha<sup>–1</sup>, which is four times lower than in hydromorphic soils at 37.01 ± 2.34 t ha<sup>–1</sup>. It was found that hydromorphic solonchaks in the coastal areas of crustal solonchaks of a very strong degree of degradation in the complete absence of vegetation have organic carbon stocks at the level of automorphic zonal soils.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"173 - 179"},"PeriodicalIF":0.6000,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arid Ecosystems","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2079096125700076","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Arid regions have received little attention in carbon management studies so far. The results of assessment and comparison of organic carbon stocks in arid soils with different degrees of degradation in the arid zone of southern Russia (Astrakhan oblast) are provided. Based on the analysis of data characterizing 263 soil profiles, it was found that carbon stocks decrease with an increase in the degree of degradation. Significant spatial variability is observed both between and within biogeocenoses. The results showed that automorphic soils have a lower capacity for organic carbon deposition compared to hydromorphic soils. In automorphic soils, carbon stocks are 9.37 ± 1.02 t ha–1, which is four times lower than in hydromorphic soils at 37.01 ± 2.34 t ha–1. It was found that hydromorphic solonchaks in the coastal areas of crustal solonchaks of a very strong degree of degradation in the complete absence of vegetation have organic carbon stocks at the level of automorphic zonal soils.
迄今为止，干旱地区的碳管理研究很少受到重视。提供了俄罗斯南部干旱区（阿斯特拉罕州）不同退化程度干旱土壤有机碳储量的评价与比较结果。通过对263个土壤剖面数据的分析，发现碳储量随退化程度的增加而减少。在生物地球群落之间和内部都观察到显著的空间变异性。结果表明，自同构土壤的有机碳沉积能力低于水态土壤。自同态土壤的碳储量为9.37±1.02 t ha-1，比水态土壤的37.01±2.34 t ha-1低4倍。研究发现，在完全没有植被的情况下，沿海地区的水蚀性土壤的退化程度非常强，具有自同构地带性土壤水平的有机碳储量。
期刊介绍：
Arid Ecosystems publishes original scientific research articles on desert and semidesert ecosystems and environment:systematic studies of arid territories: climate changes, water supply of territories, soils as ecological factors of ecosystems state and dynamics in different scales (from local to global);systematic studies of arid ecosystems: composition and structure, diversity, ecology; paleohistory; dynamics under anthropogenic and natural factors impact, including climate changes; studying of bioresources and biodiversity, and development of the mapping methods;arid ecosystems protection: development of the theory and methods of degradation prevention and monitoring; desert ecosystems rehabilitation;problems of desertification: theoretical and practical issues of modern aridization processes under anthropogenic impact and global climate changes.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
