Land use changes due to energy policy as a determining factor for morphological processes in fluvial systems in São Paulo State, Brazil

Abstract: Rapid land-use/land cover changes (LULCC) have led to habitat loss and fragmentation in the natural forest areas, which are mainly due to the intense and rapid expansion of urban areas and intense agricultural management. These processes are strongly threatening biodiversity maintenance and the ecosystem services provided by them. Among the ecosystem services under threat, pollination has been widely studied since this service is essential to promote food production and, therefore, human well-being. In a scenario of increasing LULCC it is crucial to understand the interplay between these changes, pollination demand by insect-dependent crops and pollinator availability to ensure these ecosystem services meet the increased demand for food production. In this study, we developed a conceptual model to disentangle the relationships between human-nature, especially LULCC, and its consequences, to the delivery of pollination service. We also presented a case study in the Brazilian São Paulo state, where we modeled the effects of predicted LULCC associated to agriculture expansion between the years 2012 and 2030 on pollinator demand by crops and pollinator supply, for fourteen economically important crops. Additionally, we systematized an expert-based Ecosystem Service matrix to estimate the influences of LULCC on the provision of pollination. Our results showed that by 2030, the demand for pollination will increase by 40% on average, while pollinator supply, estimated using suitability values for the different land-use/cover classes, will show, on average, a 3% decrease. Our results highlight the importance of considering the dialogue among stakeholders, governments, institutions, and scientists to find alternatives and strategies to promote pollinator-friendly practices and safeguard the provision of pollination services in a future under LULCC.

Download Full-text

MODIFICAÇÕES DO USO DA TERRA EM PAISAGENS COSTEIRAS: A ILHA COMPRIDA (SP) COMO ESTUDO DE CASO / Land Use Modifications in Coastal Landscapes: Comprida Island (São Paulo State) as Case Study

Geographia Meridionalis ◽

10.15210/gm.v2i1.7621 ◽

2016 ◽

Vol 2 (1) ◽

pp. 84

Author(s):

Tissiana De Almeida de Souza ◽

Regina Célia de Oliveira

Keyword(s):

Land Use ◽

Urban Growth ◽

Spatial Organization ◽

Sao Paulo ◽

Environmental Conservation ◽

São Paulo ◽

Conservation Units ◽

Paulo State ◽

Coastal Landscapes ◽

São Paulo State

As pesquisas sobre uso da terra revelam informações sobre a dinâmica socioeconômica e sobre a organização espacial atual e passada. Em áreas litorâneas, a aplicação de estudos temporais sobre o uso da terra é de suma importância, visto que são setores do território brasileiro associados ao processo de colonização e que se encontram sobre pressão antrópica ligada à especulação imobiliária e ao turismo. Neste contexto se enquadra o município de Ilha Comprida, localizado no litoral Sul do estado de São Paulo. Os objetivos do trabalho foram analisar as alterações de uso da terra no município nos cenários de 1962, 1981 e 2011-2012, a partir de cartas elaboradas na escala original de 1:10.000; e relacionar as modificações temporais do uso da terra com a legislação municipal e com a legislação ambiental referente às Unidades de Conservação da Natureza (UCs) existentes na ilha desde a década de 1980. Os resultados destacam modificações na cobertura vegetal natural associadas ao crescimento urbano e à especulação imobiliária, que se intensificaram durante a década de 1980. A instituição de UCs resultaram na sobreposição de zonas destinadas a objetivos diferenciados de proteção ambiental e de uso das terras.AbstractStudies on land use have provided information on the socioeconomic dynamics and the current and past spatial organization. The application of temporal studies on land use in coastal areas is of utmost importance, once these areas of the Brazilian territory are associated with the colonization process and are under anthropic pressure due to tourism and property speculation. The municipality of Comprida Island, located in the South coast of São Paulo state, is inserted in this context. The objectives of this study were to analyze the land use alterations in this municipality in the scenarios of 1962, 1981 and 2011-2012, using maps elaborated in the original scale of 1:10.000 and relate the temporal land use modifications with the municipal legislation and the environmental legislation regarding the Conservation Units existing in the island since the 1980s. The results highlight modifications in the natural vegetation cover associated with urban growth and property speculation, intensified in the 1980s. The creation of the Conservation Units resulted in the overlay of zones intended to distinct objectives; i.e., environmental conservation and land use.Keywords:Coastal areas; Land use; Conservation Units; Urban growth

Download Full-text

PASTURE LAND COVER CHANGE IN SÃO PAULO STATE, BRAZIL

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-3-w12-2020-321-2020 ◽

2020 ◽

Vol XLII-3/W12-2020 ◽

pp. 321-326

Author(s):

J. C. Oliveira ◽

R. A. C. Lamparelli ◽

G. K. D. A. Figueiredo ◽

E. E. Campbell ◽

J. R. Soares ◽

...

Keyword(s):

Land Use ◽

Land Cover ◽

Land Cover Change ◽

Sao Paulo ◽

São Paulo ◽

Total Change ◽

Pasture Land ◽

Paulo State ◽

São Paulo State ◽

Land Covers

Abstract. Pastures are complex land covers with a variety of land use systems. This land cover occupies large areas in the globe and is mainly used for livestock production. Brazil is one of the largest livestock producers and has extensive pasture areas. We analyzed the pasture land cover change of the São Paulo State between the years 2000 to 2015. São Paulo was chosen as study case due to its large industrial and agricultural importance and its expressive land cover changes over past decades. It was analyzed land covers databases generated by the Brazilian Annual Land Use and Land Cover Mapping Project (MapBiomas Project) – Collection 4. Transition matrix was generated to analyze the land cover change during the period. Gain, loss, total change, net change and swap were calculated in terms of area. Total pasture area decreased but continues the largest land cover of the São Paulo State; with 79.5% of persistence in the area. Main changes were from losses of pastures and gains in agriculture. Most of the changes to pasture came from other non vegetated areas and grassland categories. These results demonstrated the relevance of pastures areas in land cover change dynamics to address land use policy and plan future land use scenarios.

Download Full-text