Conexão florestal em áreas mais favoráveis à infiltração na APA Botucatu-SP

The replacement of natural landscapes for agricultural crops has compromised the quantity and quality of habitat among species due fragmentation of forest regions. The connection of these patches is essential to maintain gene tic flow between populations and consequently the security of the species. Preservation Areas (PA) were established with the objective of preserving the relevant areas for conservation of biodiversity and natural resources. The Environmental Protection Are a Botucatu belongs to sustainable use category of PA, which was consolidated in 1983 and has significant natural attributes such as the Basaltic Cuesta, recharge areas of the Guarani Aquifer System, an important source of groundwater, in addition to remai ning native vegetation and the local wildlife. However, its management plan is not in effect, compromising the preservation of natural resources and biodiversity. Therefore, this paper established priority areas for forest connection between the most impor tant patches for landscape connectivity located EPA Botucatu, prioritizing areas more favorable to infiltration using geoprocessing techniques. The most favorable to infiltration and percolation to groundwater supply areas were obtained from five factors t o compose the Weighted Linear Combination (WLC) , which were: geology, type of soil, slope , geomorphology , land use. Those areas areas were then overlaid by the priority areas for landscape connectivity, obtained through the Integral Index of Connectivity, resulting on the map with the priority areas for connection of landscape fragments. It was observed that the choice of method is feasible to establishment of priority areas for forest connection in areas that promote infiltration and the five factors adopt ed for the WLC were important to delimit the most favorable to infiltration and groundwater supply areas . The information generated from this study will enable ...A substituição de paisagens naturais por culturas agrícolas tem comprometido a quantidade e qualidade de habitat de diversas espécies , por meio da fragm entação dos maciços florestais e sua conexão é essencial para manter o fluxo gênico entre as populações e , consequentemente , a segurança das espécies . As unidades de conservação (UC) foram constituídas com o o bjetivo de preservar as áreas relevantes para conservação da biodiversidade e dos recursos naturais. A APA Botucatu trata - se de uma UC de uso sustentável, cuja consolidação data de 1983 e possui importantes atributos naturais como as Cuestas Basálticas, as áreas de recarga do Sistema Aqu ífero Guarani , importante manancial de água subterrânea, além dos remanescentes de vegetação nativa e a fauna local. Contudo , seu plano de manejo não se encontra em vigência, podendo comprometer a preservação dos recursos na turais e da biodiversidade . Desse modo , este trabalho estabeleceu áreas prioritárias para conexão florestal entre os fragmentos mais importantes para a conectividade da paisagem da APA Botucatu, priorizando áreas mais favo ráveis à infiltração , por meio de técnicas de Geoprocessamento. As áreas mais favoráveis à infiltração e percolação para abastecimento do lençol fre ático foram delimitadas por meio de cinco fatores para compor a Combinação Linear Ponderada e s ão eles: geologia, pedologia, declividade, formas do terreno e uso do solo. As áreas resultantes foram então sobrepostas aos fragmentos prioritários para a conectividade ..

Modificações no uso e cobertura do solo e seus efeitos na oscilação do nível freático em uma área de afloramento do Sistema Aquífero Guarani (SAG) analisadas a partir de dados de precipitação e séries EVI (Índice de Vegetação Melhorada)

: The land use and occupation and the activities in geographical space determine the pressure on water resources, and consequently changes and pollution generated in water bodies. In areas where water use is done continuously, the available water is important for activities planning and development. In parallel, land use and occupation by agriculture determine the degree of pressure of activities on water resources. This becomes more evident in strategic water reserves such as groundwater. This study examined the similarities between the spectral response of different crops using the EVI (Enhanced Vegetation Index), seasonal precipitation patterns and groundwater levels oscillations calibrated using the PIRFICT model. The study area is located in Ribeirão da Onça, Brotas / SP-Brazil. This area presents intense agricultural use and is a recharge area of the Guarani Aquifer System (GAS) due arenite outcrops. The results demonstrate that EVI time series behavior was influenced by the type of crop in the area and the management of these cultures. Direct responses of precipitation in the water table and the soil coverage change influenced both EVI and groundwater time series.Pages: 74-8

Comparação temporal da rede de drenagem por classe de uso em uma área de proteção ambiental no município de Botucatu, SP

All Conservation Units (CU) have as main objective the protection of its natural resources. The degree of restriction to their use varies according to the type of UC. The Environmental Protection Areas (EPA) are among the Protected Areas of Sustainable Use, and the exploitation of their natural resources is allowed since it occurs in a sustainable manner. However, the EPA Botucatu does not have a management plan to restrict the agricultural activities occurring on its territory, thereby the exploitation of that UCs resources have been occurring indiscriminately since its inception in 1983. The area analyzed in this study refers to the EPAs area inside Botucatus territory, and the analysis consisted in evaluate the extension of the drainage network between 1977 and 2010 in the areas of continuing land use between 1985 and 2010 using Remote Sensing tools as methodology. The results from monitoring the study areas hydrography indicated a decrease of the drainage network in most classes of land use. The class Annual Culture and Perennial Culture showed the greatest decrease of water resources and Native Vegetation was the class with the highest conservation of these resources. The results point to an adaptation for appropriate agricultural management as well the preservation of Native Vegetation in APA Botucatu, once the combination of these two items is the key to preserving water resources.Pages: 7624-763

Rayas de agua dulce (Potamotrygonidae) de Suramérica. Parte II. Colombia, Brasil, Perú, Bolivia, Paraguay, Uruguay y Argentina

El libro es la continuación de una iniciativa de hace ya unos años (2012), donde varios países del área de distribución de la familia, decidieron unirse al ver como este recurso estaba disminuyendo o bien, era prácticamente desconocido. Este grupo tiene un gran impacto principalmente por su importancia como recurso pesquero ornamental, aunque también se usa como alimento, en la pesca deportiva y tiene incidencia en la salud pública. Para poder mitigar la posible sobreexplotación, surgió la necesidad de regular el comercio e intentar convertir la pesca ornamental de rayas en una actividad sostenible. Por ello, desde 2012 el IAvH junto a varios países propusieron la inclusión de varias especies al Apéndice III de Cites. Una de las limitantes de esta propuesta y por la cual no prosperó en su inicio, fue la falta de información sobre las especies.Bogotá, D. C

Núcleos de Ensino da Unesp: artigos 2007

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq