Banco de sementes do solo após 25 anos do plantio de leguminosas arbóreas em área de empréstimo - Seropédica, RJ

Ciencia Florestal

article

Eduardo Francia Carneiro Campello¹  Alexander Silva de Resende¹  Estefânia Maria Justo Arêas²  Pedro Miguel Justo Arêas³ 

[1] Centro Nacional de Pesquisa de Agrobiologia;Universidade do Estado do Rio de Janeiro;Universidade Federal Rural do Rio de Janeiro

关键词: Revegetation;    Land reclamation;    Ecological succession;   

DOI  :  10.5902/1980509847031

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Pesquisas Florestais

【 摘 要 】

In highly degraded areas such as degraded land, human intervention is critical so that the environment can recover its ecological functions. One of the techniques used for this process is the use of leguminous trees associated with microorganisms. Ecologically, these species are distinguished by associating symbiotically with nitrogen-fixing bacteria and mycorrhizal fungi. This alliance enables a significant improvement of the plant’s nutritional status, accelerating the process of ecological succession and thus contributing to the area’s restoration. Given this knowledge, in 1989, began the revegetation of a clay loan area with seedlings nodulated and mycorrhizal legume trees. As such, this study aims to assess the ecological succession of a degraded land located in the experimental field of Embrapa Agrobiologia, Seropédica - RJ. Therefore, we evaluated the seed bank and the stock of litter. The use of leguminous trees has proved its effectiveness in activating the mechanisms of natural succession. Twenty-five years after planting legumes, 37 species of 16 botanical families emerged, besides the improvement of soil fertility and supply of litter. The study reflects the need to give more importance to other forest guilds in restoration projects, even considering the success of tree legumes in the catalysis of the ecological succession process.

【 授权许可】

CC BY-NC