Name: RAYANE ROSA
Publication date: 31/08/2020
Advisor:
Name |
Role |
|---|---|
| FÁBIO RIBEIRO PIRES | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| ADRIANO ALVES FERNANDES | Co advisor * |
| FÁBIO RIBEIRO PIRES | Advisor * |
| SARA DOUSSEAU ARANTES | Co advisor * |
Summary: The Atlantic Forest is one of the richest biomes in biodiversity, but the growing
urbanization and extractive activities have caused the degradation of these areas
and a consequent imbalance of the entire natural cycle of the environment, which
makes the process of natural regeneration difficult. Many of these activities require
soil degradation, which makes them low in nutrients and organic matter and also in
many cases compacted. To revert the degradation processes of these areas,
revegetation techniques are used, with the use of native species and mineral
fertilization, in order to improve the soil and facilitate the process of ecological
succession. In order to revegetate an oil well base in the municipality of São Mateus -
ES, an experiment was developed to evaluate the survival rate, growth, leaf
attributes and photosynthetic activity of Schinus terebinthifolius Raddi,
Chrysobalanus icaco, Inga laurina, Mouriri guianensis and Garcinia brasiliensis,
transplanted in two types of soil (sandy and clayey) and submitted to five doses of
NPK 04-14-08 at planting. Each species was evaluated individually in a randomized
block design in a split plot scheme with 4 blocks. The plots consisted of the two types
of soil (sandy and clayey) and the subplots by the 5 planting fertilization treatments
with NPK 04-14-08 (0, 40, 80, 160 and 320 g per pit-1
). The survival rate was high in
S. terebinthifolius Raddi, I. laurina and M. guianensis. In C. icaco it was low when
higher doses of planting fertilizer were applied. The best results are represented by
treatments that did not receive fertilization or when lower doses were applied. G.
brasiliensis also showed a reduction in the survival rate at higher doses. The growth
of the species S. terebinthifolius Raddi, C. icaco, M. guianensis and G. brasiliensis,
did not suffer influence in relation to the type of soil. In I. laurina, the plants that were
grown in clayey soil were those that showed the best growth. For planting fertilization
with NPK 04-14-08, the division between plants that do not require planting
fertilization (C. icaco, I. laurina and G. brasiliensis) and those that develop better on
average with 200 g of NPK (S. terebinthifolius Raddi and M. guianensis). The leaf
attributes showed an adaptive response of the plants in relation to the conditions of environmental stress to which they were submitted, showing to be an accurate
method to evaluate the behavior of the studied species. The species S.
terebinthifolius Raddi, I. laurina and G. brasiliensis were more sensitive to changes in
the photosynthetic apparatus when cultivated in sandy soil. This fact demonstrated
that it is possible to revegetate this type of environment without removing the clayey
soil deposited there, considering these three species. The fertilization doses with
NPK, did not interfere in the parameters of the JIP test for the species S.
terebinthifolius Raddi and M. guianensis, in the two evaluation periods and in C.
icaco, at six months.
