INVESTIGADORES
GARIBALDI Lucas Alejandro
congresos y reuniones científicas
Título:
Sustainable management of the native mixed forest: above and below-ground interactions between plants and insects
Autor/es:
GARIBALDI LA; AGUERO J; CARRON AI; COULIN C; FERNANDEZ M; GARCÍA I; GIROTTO A; GOLDENBERG MG; FONTENLA S; NACIF ME; ODDI FJ; PÉREZ-MENDEZ N; VAN DOORN L
Reunión:
Simposio; II International Symposium - Mycorrhizal Symbiosis in South America; 2019
Resumen:
The loss of nativeforests and the services that these provide is a problem of greatrelevance in Argentina and worldwide. Such loss is partly due to thelack of technologies that allow producers to use the forestsustainably, both in economic and environmental terms. In Río Negro,the native mixed forest, one of the most diverse in the region (alsoknown as tall shrubland), has been historically replaced by livestocksystems or by afforestation with exotic species. In three mixedforests of Río Negro, we are evaluating the relationship betweeneconomic profitability and the environmental impact of 8 managementpractices. These practices result from a factorial design at the plotlevel (1418 m2 each), which includes 4 harvesting intensities crossedwith plantation of native tree species (plots with or withoutplantation). At the transect level within the plot, we planted 3origins of each of 6 native tree species (one species per transect).These practices prioritize different forest products, such asfirewood and non-wood products in the unplanted plots vs. timber inthe planted plots, and we expect them to have different environmentaland economic impacts. We are evaluating the response of quantitativeplant-insect interaction networks, both aerial and belowground,focusing on plant-pollinator interactions, plant-leaf herbivores andplant-root herbivores.Insects are an important component of the biodiversity of Patagonianforests, which in turn can have an impact on forest productivity andtimber quality as well as on non-wood products. We will evaluate leafquality for herbivores and physical-chemical characteristics of soilsthat impact both plants and insects. We will relate the impact ofpractices on quantitative networks of plant-insect interaction withaspects of economic profitability (e.g. product quality, targetmarket and price). From the point of view of the implementation oflocal and regional policies, we will provide information lacking onmanagement technologies, economic profitability and environmentalimpact that will contribute to the adequate implementation of the Law26,331 of Minimum Budgets for the Protection of Native Forests. Forexample, our results will contribute to the allocation of economicincentives to producers by Law 26,331 according to the economicprofitability and the environmental impact of the practices proposedin their management plans. From the global and conceptual point ofview, our results will be novel contributions on less exploredaspects of agricultural and forestry theory, such as the simultaneousinteraction of a diverse group of plants and insects and theirconsequences on the belowground and aerial processes.p { margin-bottom: 0.25cm; line-height: 120%; }