Arid
DOI10.1007/s10457-007-9063-8
Organic carbon pools in a Luvisol under agroforestry and conventional farming systems in the semi-arid region of Ceara, Brazil
Ferreira Maia, Stoecio Malta; Xavier, Francisco Alisson S.; Oliveira, Teogenes Senna; Mendonca, Eduardo Sa; Araujo Filho, Joao A.
通讯作者Ferreira Maia, Stoecio Malta
来源期刊AGROFORESTRY SYSTEMS
ISSN0167-4366
出版年2007
卷号71期号:2页码:127-138
英文摘要

Many environmental benefits have been attributed to agroforestry systems in various ecosystems around the world. However, there is a limited amount of information to evaluate this agricultural system in the semi-arid region, specifically in the region of Ceara, Brazil. The objective of this work was to evaluate five agricultural (four agroforestry and one conventional) systems in order to test the hypothesis that the agroforestry systems promote an increase in the soil organic carbon stocks and organic carbon pools, thus improving soil quality. The following treatments were tested: agrosilvopasture (AGP), silvopasture (SILV), traditional agroforestry (TRAG), intensive cropping (IC), and native forest (NF). The soil samples were collected at four depths: 0-6, 6-12, 12-20 and 20-40 cm. Total soil organic carbon stocks and the organic carbon pools (microbial biomass-C, mineralizable-C, oxidizable-C, free, occluded light fraction organic matter, and C in the humic substances) were analyzed. After 5 years of experimental cultivation, the soil under the SILV system presented the best results for the attributes studied, preserving, and in some cases, improving these attributes, when compared to the other conditions. The traditional agroforestry system (TRAG) reduced total organic carbon stocks and, consequently, C in some organic matter compartments, indicating that the fallow period was not sufficient to maintain soil quality. The AGP and IC systems presented significant losses in some of the soil organic matter (SOM) pools, suggesting that the soil environment had been degraded. The most labile SOM components were considered sensitive indicators of change in the soil quality. The silvopasture system can, therefore, be recommended as an alternative soil management strategy for food production and for the maintenance of soil quality and agricultural sustainability in the semiarid region of Ceara state.


英文关键词semi-arid agroforestry organic carbon pools soil quality
类型Article
语种英语
国家Brazil
收录类别SCI-E
WOS记录号WOS:000249400300005
WOS关键词SOIL QUALITY ; CONSERVATION TILLAGE ; MICROBIAL BIOMASS ; FRACTIONS ; MANAGEMENT ; NITROGEN ; ECOSYSTEM ; FOREST
WOS类目Agronomy ; Forestry
WOS研究方向Agriculture ; Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/153376
作者单位(1)Univ Fed Ceara, BR-60455760 Fortaleza, Ceara, Brazil;(2)Univ Fed Vicosa, BR-36570000 Vicosa, MG, Brazil;(3)CNPC, EMBRAPA, BR-62011970 Sobral, Ceara, Brazil
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GB/T 7714
Ferreira Maia, Stoecio Malta,Xavier, Francisco Alisson S.,Oliveira, Teogenes Senna,et al. Organic carbon pools in a Luvisol under agroforestry and conventional farming systems in the semi-arid region of Ceara, Brazil[J],2007,71(2):127-138.
APA Ferreira Maia, Stoecio Malta,Xavier, Francisco Alisson S.,Oliveira, Teogenes Senna,Mendonca, Eduardo Sa,&Araujo Filho, Joao A..(2007).Organic carbon pools in a Luvisol under agroforestry and conventional farming systems in the semi-arid region of Ceara, Brazil.AGROFORESTRY SYSTEMS,71(2),127-138.
MLA Ferreira Maia, Stoecio Malta,et al."Organic carbon pools in a Luvisol under agroforestry and conventional farming systems in the semi-arid region of Ceara, Brazil".AGROFORESTRY SYSTEMS 71.2(2007):127-138.
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