Diferenças

Aqui você vê as diferenças entre duas revisões dessa página.

--- opensci:2025:rafael:art3 [2025/04/09 14:07] – criada rafael
+++ opensci:2025:rafael:art3 [2025/04/27 12:27] (atual) – rafael
@@ Linha 4: / Linha 4: @@
 **Author**: [[opensci:2025:rafael|Cassio Rafael C. dos Santos]]
-**Overview**: .
+**Overview**: Here we are presenting an excerpt of the outcomes from the Doctored Thesis Project titled "Carbon stock and nutrients cycling in cocoa-based agroforestry systems in Eastern Amazon". In this research project, we are monitoring cocoa-based agroforestry systems (AFSBM), with different shade-species and different arrangements, in comparison to a native forest (FOR) and a pasture (PAS). The main goal of this survey is to quantify and qualify the potential of these agroforestry system of providing ecosystem services related to carbon storage, soil health and nutrient cycling and their relationship with cocoa yield.
-**Questions**: ...?
+**Questions**: Is AFSBM closer to FOR than PAS, regarding litter and carbon stock?
-**Procedures Description**: ...
+**Procedures Description**: To present some results here in Dokuwiki,  we basicly used litter stock (from both rainy and drier season) and biomass and carbon data from the Thesis database to perform the statistical and analysis and to generate the plots presented below. We performed a non-parametric analysis using a Kruskal-Wallis test, followed by a Dunn as a post-hoc test (in case of Kruskal-Wallis test significance) for multiple comparison of FOR, AFSBM and PAS. Additionally, we performed a principal components analysis (PCA). From the components generated, we used the first two components to create the biplot, as a result of the association between the vectorial position of the variables and the scattering of the observations.
-**Results Interpretation**: ...
+**Results Interpretation**: Regarding litter stock, for both rainy (Figure 1) and drier (Figure 2) seasons, AFSBM presented stock values closer to FOR than PAS, not differing from FOR in rainy season and being statistically supeior to FOR in drier season. On the other hand, for aboveground biomass and aboveground carbon stock, FOR presented the higher values, differing from AFSBM and PAS. However, the greater proximity of the AFSBM to FOR is also evident for these variables, as also observed for litter stock. Finally, PCA biplot also confirm this proximity between AFSBM and FOR observation, answering positively the stated above. However, Litter Stock of both seasons are covariant among each other and are more responsive to the AFSBM plots, while aboveground biomass and carbon are more responsive to FOR plots.
 **Raw Data and Code used**