Os efeitos espaciais são fatores determinantes dos preços das terras agrícolas no Brasil

Marques, Felipe César; Telles, Tiago Santos

doi:10.1590/1806-9479.2022.262420pt

Cited by 3 publications

(2 citation statements)

References 50 publications

(100 reference statements)

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“…The value of land is related to the income that can be obtained from it [60], which explains the higher VBL for the Mosaic class of land use, since it is composed of temporary crops (soybeans, sugar cane, rice, cotton) and perennial crops (coffee and citrus), whether analyzed in terms of monetary productivity or agricultural production [61].…”

Section: Discussionmentioning

confidence: 99%

Delimitation of Ecological Corridor Using Technological Tools

Mardeni¹,

Dias²,

Santos³

et al. 2023

Preprint

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Ecological corridors function as a viable way to mitigate the environmental impact arising from forest fragmentation by interconnecting forest fragments through various techniques. In this context, the objective of this study is to propose a route for the implementation of an ecological corridor in the Itapemirim river watershed. The specific objectives were: (i) to delimit the permanent preservation areas (APP) of the Itapemirim river watershed and compare land use and land cover in the delimited areas; (ii) to calculate landscape ecology indices and select the forest fragments with the highest potential for ecological corridor implementation using Fuzzy logic; (iii) to assess costs and trace the best route for ecological corridor implementation, considering distance and physical impediments; (iv) to assess land costs and expropriation costs to delimit the ecological corridor in the study area. To map land use and land cover, the MapBiomas platform was used, based on Landsat 8 satellite images. The permanent preservation areas were delimited according to criteria established by Law No. 12.651 of May 25, 2012, which establishes parameters, definitions, and limits for APP. The characterization and structural quantification of some landscape ecology indices were performed using the QGIS 3.26 computational application, through the LecoS 3.0.1 plugin and Fragstats 4.2. The connected forest fragments were the Caparaó National Park, the Serra das Torres State Natural Monument, and the fragments selected through the application of Fuzzy logic to the landscape ecology indices. The corridor was delimited according to the lowest cost route, considering land use and land cover, APP, fragment potential, slope, and subnormal clusters. For each cost raster image, its respective statistical weights were calculated using the Analytic Hierarchy Process (AHP) hierarchical method, as well as for the analysis of priority areas for forest restoration, considering land use and land cover, APP, pedology, lithology, and biological importance. The interconnection between protected areas and fragments with the ecological corridor followed the orientation described by CONAMA nº 09/96. Based on the development of the work, the following results were identified: the highest land use and land cover class is pasture. Of the area designated for permanent preservation, 68.58% is in conflicting use with the legislation. The bare land value per hectare of the pasture class is the second highest among the bare land value per LULC values, representing 64.28% of the total. The priority area map showed that 31.86% of the area was classified as of very high or high importance and 42.97% as low or very low priority for forest restoration. Thus, it is concluded that the least cost path algorithm associated with the result generated by the multi-criteria decision method (AHP) constitutes an important tool for planning and implementing an ecological network by taking into account the primary factors for decision-making regarding the location of the best route.

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Section: Discussionmentioning

confidence: 99%

Delimitation of Ecological Corridor Using Technological Tools

Mardeni¹,

Dias²,

Santos³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The value of land is directly related to the potential income it can generate [61], which explains the higher Value of Bare Land (VBL) observed for the mosaic class of land use. This class consists of temporary crops (such as soybeans, sugar cane, rice, and cotton) and perennial crops (coffee and citrus), both in terms of monetary productivity and agricultural production [61].…”

Section: Discussionmentioning

confidence: 99%

Delimitation of Ecological Corridor Using Technological Tools

Mardeni,

Dias,

Santos

et al. 2023

Sustainability

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Ecological corridors are effective strategies to address the environmental consequences of forest fragmentation by connecting fragmented areas through various techniques. This study aims to propose the implementation of an ecological corridor in the Itapemirim River basin in Espírito Santo, Brazil. The specific objectives of this study are as follows: delimiting the Permanent Preservation Areas (APPs) in the Itapemirim River watershed and comparing land use and land cover within these areas. The MapBiomas platform and Landsat 8 satellite images were utilized to map land use and land cover, while the criteria set by Law No. 12.651 were followed to define the APP boundaries. The calculation of the landscape ecology indices and the identification of the forest fragments with the highest potential for ecological corridor implementation were conducted using the Fuzzy logic. The QGIS 3.26 application, along with the LecoS 3.0.1 plugin and Fragstats 4.2, were employed to characterize and quantify landscape ecology indices. The costs assessment and determination of the optimal route for implementing the ecological corridor were performed, considering bothdistance and physical impediments. The least cost path algorithm was utilized, taking into account land use and land cover, APP, fragment potential, slope, and subnormal clusters. Evaluating land costs and expropriation expenses required to define the ecological corridor in the study area. The identified forest fragments for inclusion in the ecological corridor were the Caparaó National Park, the Serra das Torres State Natural Monument, and other selected fragments based on the application of Fuzzy logic to landscape ecology indices. The corridor route was determined using the least cost path algorithm, considering various factors. This study revealed that the predominant land use and land cover class in the area is pasture, and a significant portion (68.58%) of the designated Permanent Preservation Areas were in conflict with legal regulations. The bare land value per hectare for pasture was the second highest among the land use and land cover categories, accounting for 64.28% of the total. The priority area analysis indicated that 31.86% of the region had high or very high importance for forest restoration, while 42.97% had low or very low priority. The findings demonstrate that the least cost path algorithm, coupled with a multi-criteria decision-making approach using the Analytic Hierarchy Process (AHP), is a valuable tool for planning and implementing ecological networks. These methods effectively consider critical factors in decision-making processes related to the optimal location of the ecological corridor. In conclusion, this study provides insights into the implementation of an ecological corridor in the Itapemirim River basin, emphasizing the importance of considering multiple factors and utilizing appropriate methodologies for effective decision-making in ecological planning.

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A zoning of the Metropolitan City of Naples and analysis of land values

Cupo,

Dell'Isola

2023

Aestimum

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This paper presents the results of a zoning study involving the metropolitan city of Naples, for the purpose of identifying the areas within which to perform a comparable search by applying the synthetic-comparative market value procedure of appraisal. Moreover, an analysis was carried out of the values of agricultural land reported by two official sources, i.e. average land values (VFM) and average agricultural values (VAM), and by an unofficial source, i.e. the values of the Observatory of Agricultural Values (VAO). The results show that for some area/crop quality combinations, the values recorded can provide a significant indication of the agricultural value to be estimated. Vice versa, for estimating the agricultural value of land cultivated with the most profitable crops, the official values showed to be unreliable, meaning that the appraisal requires an accurate field survey. As for the differences between the different homogeneous areas, VAO prove to be more reliable, while VAM are the least significant values.

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Os efeitos espaciais são fatores determinantes dos preços das terras agrícolas no Brasil

Cited by 3 publications

References 50 publications

Delimitation of Ecological Corridor Using Technological Tools

Delimitation of Ecological Corridor Using Technological Tools

Delimitation of Ecological Corridor Using Technological Tools

A zoning of the Metropolitan City of Naples and analysis of land values

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