| Full text | |
| Author(s): |
Ferreira, Mauricio Lamano
[1, 2]
;
Barbosa, Marcelo Ferreira
[3]
;
Cabral Gomes, Eduardo Pereira
[4]
;
Branco do Nascimento, Ana Paula
[5]
;
de Luca, Edgar Fernando
[6]
;
da Silva, Karina Goncalves
[7]
;
Franca, Ulisses Bezerra
[8]
;
de Camargo, Plinio Barbosa
[7]
;
Lafortezza, Raffaele
[9, 10]
Total Authors: 9
|
| Affiliation: | [1] Adventist Univ Sao Paulo, Masters Program Hlth Promot, Sao Paulo, SP - Brazil
[2] Univ Guarulhos, Masters Program Geoenvironm Anal, Guarulhos, SP - Brazil
[3] Univ Nove Julho UNINOVE, Fac Biol Sci, Dept Hlth, Sao Paulo, SP - Brazil
[4] Inst Bot IBT SP, Sao Paulo, SP - Brazil
[5] Univ Sao Judas Tadeu, Dept Civil Engn, Sao Paulo, SP - Brazil
[6] Inst Forestry IF SP, Sao Paulo, SP - Brazil
[7] Univ Sao Paulo, Ctr Energia Nucl Agr CENA USP, Piracicaba, SP - Brazil
[8] Prefeitura Cidade Sao Paulo Secretaria Verde & Me, Sao Paulo, SP - Brazil
[9] Univ Bari Aldo Moro, Dept Agr & Environm Sci, Bari - Italy
[10] Univ Hong Kong, Dept Geog, Centennial Campus, Pokfulam Rd, Hong Kong - Peoples R China
Total Affiliations: 10
|
| Document type: | Journal article |
| Source: | ECOLOGICAL PROCESSES; v. 10, n. 1 MAY 1 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
The focus of this study was to investigate the wide use of Eucalyptus spp., an exotic plant with high allelopathic ability, in the reforestation programs of urban parks in Sao Paulo City, Brazil, over the last century. To understand the implications of using Eucalyptus spp. in the city's parks, this study aimed to compare nutrient cycling and litter decomposition between a mixed composition of litter (i.e., native and exotic species) and the litter of a single species (i.e., Eucalyptus). To accomplish this, newly deciduous leaves were collected from two native and two exotic species that are commonly used in the afforestation of Sao Paulo as well as from Eucalyptus spp. The mixed composition of litter yielded a higher dry mass loss and return of macro- and micronutrients to the forest floor. The decomposition constant (k) values were 0.00322 and 0.00207 g g(-1) day(-1) for the mixed composition and Eucalyptus spp., respectively. The time required for decomposition of 50 and 95% of deciduous material was 215 and 931 days, respectively, and for the mixed litterfall 334 and 1449 days, respectively, for Eucalyptus spp. Therefore, the mixed litter exhibited greater dry mass loss and nutrient cycling in an urban forest of Sao Paulo City, since dry mass losses as well as speed and amount of nutrients returned to the forest floor were relatively higher compared to Eucalyptus spp. Nutrient cycling via Eucalyptus spp. litter was less efficient than mixed composition of litter, demonstrating that reforestation programs carried out in the twentieth century using only one species may have had little success. The results of this work emphasize the fact that in urban reforestation programs the City of Sao Paulo must consider the environmental and biogeographic characteristics of the species employed and use high levels of biodiversity, since the city lies in a megadiverse biome. (AU) | |
| FAPESP's process: | 19/24325-2 - Carbon and nitrogen flux in the soil-plant-atmosphere system in urban forests of the city of São Paulo, SP |
| Grantee: | Maurício Lamano Ferreira |
| Support Opportunities: | Regular Research Grants |