R. G. de Almeida, M. C. C. Campos, D. M. P. da Silva, R. V. dos Santos, A. F. L. de Lima, R. F. da Silva Souza, F. A. Bezerra, W. O. Araújo, F. P. de Oliveira
{"title":"Organic Carbon and Formation of Soil Aggregates on Areas of Natural Vegetation Converted to Pasture in Southern Amazonas","authors":"R. G. de Almeida, M. C. C. Campos, D. M. P. da Silva, R. V. dos Santos, A. F. L. de Lima, R. F. da Silva Souza, F. A. Bezerra, W. O. Araújo, F. P. de Oliveira","doi":"10.1134/s1064229323603281","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The objective was, therefore, to evaluate the impact on organic carbon and the formation of soil aggregates in areas of natural vegetation converted into pastures in southern Amazonas. The research was carried out in seven areas in the municipality of Humaitá, Amazonas, Brazil, five of which were pastureland, one native forest, and one natural field. Soil samples were collected at depths of 0–10 and 10–20 cm in the seven study areas and analyzed for aggregate stability, soil density, soil organic carbon, and the calculated soil organic carbon stock. Univariate, bivariate, and multivariate analyses were then carried out. Conversion from forest to pasture had a negative impact on percentage of aggregates >2 mm, soil density, concentration and stock of soil organic carbon. Organic carbon correlates positively with percentage of aggregates >2 mm, geometric mean diameter and weighted mean diameter, and negatively with soil density. Aggregate stability influences carbon sequestration in the pasture and forest areas studied, but has no influence in the natural grassland environment.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"13 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eurasian Soil Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1134/s1064229323603281","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
The objective was, therefore, to evaluate the impact on organic carbon and the formation of soil aggregates in areas of natural vegetation converted into pastures in southern Amazonas. The research was carried out in seven areas in the municipality of Humaitá, Amazonas, Brazil, five of which were pastureland, one native forest, and one natural field. Soil samples were collected at depths of 0–10 and 10–20 cm in the seven study areas and analyzed for aggregate stability, soil density, soil organic carbon, and the calculated soil organic carbon stock. Univariate, bivariate, and multivariate analyses were then carried out. Conversion from forest to pasture had a negative impact on percentage of aggregates >2 mm, soil density, concentration and stock of soil organic carbon. Organic carbon correlates positively with percentage of aggregates >2 mm, geometric mean diameter and weighted mean diameter, and negatively with soil density. Aggregate stability influences carbon sequestration in the pasture and forest areas studied, but has no influence in the natural grassland environment.
期刊介绍：
Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences.
Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
