Changes in Carbon Cycling during Development of Successional Agroforestry
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Data
2017-03-01
Autores
Selecky, Tomas
Bellingrath-Kimura, Sonoko D.
Kobata, Yuji
Yamada, Masaaki
Guerrini, Irae A. [UNESP]
Umemura, Helio M.
Dos Santos, Dinaldo A.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Mdpi Ag
Resumo
Successional agroforestry systems (SAFS) mimic the structure of natural forests while providing economical outputs. This study clarifies how carbon cycling and carbon sequestration change during successional development of SAFS. In Brazil, three successional stages of SAFS, 6, 12, and 34 years old, were compared in terms of carbon balance. Aboveground biomass, fruit harvest, litterfall, soil respiration, and soil organic carbon were measured for two years and analyzed. Carbon sequestration expressed by net primary productivity increased with age of SAFS from 9.8 MgCha(-1)year(-1) in 6-year-old system to 13.5 MgCha(-1)year(-1) in 34-year-old system. Accumulation of plant biomass and increased internal carbon cycling in SAFS led to an intensive sequestration of carbon. SAFS can be a sustainable way of agricultural production on vulnerable tropical soils.
Descrição
Palavras-chave
successional agroforestry, carbon cycling, soil fertility, Brazil, aboveground biomass, SOC, litterfall, respiration
Como citar
Agriculture-basel. Basel: Mdpi Ag, v. 7, n. 3, 12 p., 2017.