A waypoint-based mission planner for a farmland coverage with an aerial robot - a precision farming tool

Remote sensing (RS) with aerial robots is becoming more usual in every day time in Precision Agriculture (PA) practices, do to their advantages over conventional methods. Usually, available commercial platforms providing off-the-shelf waypoint navigation are adopted to perform visual surveys over crop fields, with the purpose to acquire specific image samples. The way in which a waypoint list is computed and dispatched to the aerial robot when mapping non empty agricultural workspaces has not been yet discussed. In this paper we propose an offline mission planner approach that computes an efficient coverage path subject to some constraints by decomposing the environment approximately into cells. Therefore, the aim of this work is contributing with a feasible waypoints-based tool to support PA practices

A data driven study of relationships between relief and farmland abandonment in a Mediterranean region

The environmental, cultural and socio-economic causes and consequences of farmland abandonment are issues of increasing concern for researchers and policy makers. In previous studies, we proposed a new methodology for selecting the driving factors in farmland abandonment processes. Using Data Mining and GIS, it is possible to select those variables which are more significantly related to abandonment. The aim of this study is to investigate the application of the above mentioned methodology for finding relationships between relief and farmland abandonment in a Mediterranean region (SE Spain).We have taken into account up to 28 different variables in a single analysis, some of them commonly considered in land use change studies (slope, altitude, TWI, etc), but also other novel variables have been evaluated (sky view factor, terrain view factor, etc). The variable selection process provides results in line with the previous knowledge of the study area, describing some processes that are region specific (e.g. abandonment versus intensification of the agricultural activities). The European INSPIRE Directive (2007/2/EC) establishes that the digital elevation models for land surfaces should be available in all member countries, this means that the research described in this work can be extrapolated to any European country to determine whether these variables (slope, altitude, etc) are important in the process of abandonment.

Key Issues and Developments in Farmland Sales Markets in the EU Member States and Candidate Countries. Factor Markets Working Paper No. 12, February 2012

This paper describes recent developments in sales markets of agricultural land in selected member states of the European Union and its candidate countries. Analysis focuses on the importance of the sales market for agricultural land, the average size of transacted plots, and the evolution and magnitude of the land sales prices. The share of agricultural land sold on the market is relatively stable in most of the old member states, with the exception of Finland, the Netherlands and the UK, where a more dynamic market is observed. For the new member states, the sales market for agricultural land is strongly affected by public sales under the ongoing land privatisation programmes, while strong variation prevails in the private sales market. Substantial differences are also observed in both the average size of the transacted plots and the sales prices. For the latter, price regulations partially explain the heterogeneity in the evolution of sales prices.

Key Issues and Developments in Farmland Rental Markets in EU Member States and Candidate Countries. Factor Markets Working Paper No. 13, February 2012

In this paper, we describe recent developments in the rental market for agricultural land in selected EU member states and candidate countries. The analysis focuses on the importance of the rental market as well as on the evolution of rental prices. It appears that the share of rented land in the total utilised agricultural area varies considerably among member states. In the old member states, the share of rented land ranges between 18% in Ireland and 74% in France, while in the new member states (NMS) it ranges from 17% in Romania to 89% in Slovakia. For the former, different strategies to provide tenure security to tenants can explain differences in the importance of rental markets. Changes in the significance of land rental have also reflected changes in institutions and in economic and political conditions. In the NMS, diverse approaches to land reform have resulted in assorted ownership structures and hence in differences in the share of rented land. Regarding rental prices, governments impose price restrictions on agricultural land rents in some countries, such that large divergences are observed in rental prices between and within member states.

The Reallocation of Agricultural Labour across Sectors: An Empirical Strategy for Micro Data. Factor Markets Working Document No. 45, May 2013

This paper presents an empirical methodology for studying the reallocation of agricultural labour across sectors from micro data. Whereas different approaches have been employed in the literature to better understand the mobility of labour, looking at the determinants to exit farm employment and enter off-farm activities, the initial decision of individuals to work in agriculture, as opposed to other sectors, has often been neglected. The proposed methodology controls for the selectivity bias, which may arise in the presence of a non-random sample of the population, in this context those in agricultural employment, which would lead to biased and inconsistent estimates. A 3-step multivariate probit with two selection and one outcome equations constitutes the selected empirical approach to explore the determinants of farm labour to exit agriculture and switch occupational sector. The model can be used to take into account the different market and production structures across European member states on the allocation of agricultural labour and its adjustments.

Influence of Agricultural Support on Sale Prices of French Farmland: A comparison of different subsidies, accounting for the role of environmental and land regulations. Factor Markets Working Document No. 51, June 2013

This paper investigates the determinants of agricultural land price in several regions in France over the period 1994-2011, using individual plot transaction data, with a particular emphasis on agricultural subsidies and nitrate zoning regulations. It found a positive but relatively small capitalisation effect of the total subsidies per hectare. The data revealed that agricultural subsidies capitalised, at least to some extent, but the magnitude of such a capitalisation depends on the region considered, on the type of subsidy considered, and on the location of the plot in a nitrate surplus zone or not. Only land set-aside premiums significantly capitalise into land price, while single farm payments have a significant positive capitalisation impact only for plots located in a nitrate-surplus zone.

The Empirical Content of the Present Value Model: A survey of the instrumental uses of farmland prices. Factor Markets Working Document No. 53, June 2013

After reviewing the Present Value Model (PVM), in its basic form and with its major extensions, the authors carried out a literature review on the instrumental uses of farm land prices; namely what land prices may reveal in the framework of the PVM. Urban influence, non-market goods and climate change are topics where the PVM used with applied data may reveal farmers’ or landowners’ beliefs or subjective values, which are discussed in this paper. There is also extensive discussion of the topic of public regulations, and how they may affect land price directly, or through its present value.

The Impact of the SFP System on Italian Farmland Prices and Tenure Contracts. Factor Markets Working Document No. 65, August 2013

EDITED VERSION TO BE PUBLISHED SOON. The aim of this paper is to contribute to the estimation of the potential effects of the CAP reform on propensity to transaction, particularly comparing the effect of different new instruments/policy settings with the current policy (CAP health check) used as a baseline. The work is focused on three of new policy instruments within the post 2013 CAP reform proposal: regionalization, greening and capping. The first and second are analysed in more detail. The analysis will be based on a survey of farmers in the Province of Bologna, Emilia Romagna, Italy. The questionnaire focuses on mechanism of access to land and related incentives towards different land use/economic behaviour. The survey includes information about respondent characteristics (farm, farmer, household and payments received) and stated intention about potential changes in land operated under alternative agricultural policy scenarios (particularly the post-2013 reform proposals).

Farmland protection act [microform] : hearing before the Subcommittee on Environment, Soil Conservation, and Forestry of the Committee on Agriculture, Nutrition, and Forestry, United States Senate, Ninety-sixth Congress, first session, on S. 795 ... July 10, 1979.

Reuse of record except for individual research requires license from Congressional Information Service, Inc.

The investment of pension funds in farmland [microform] : hearing before the Select Committee on Small Business, United States Senate, Ninety-sixth Congress, second session, on the investment of pension funds in farmland, October 8, 1980.

CIS Microfiche Accession Numbers: CIS 81 S721-6

Annual farmland conversion report.

Title taken from letter of transmittal.

The effectiveness of differential assessment of farmland in the Chicago metropolitan area /

"DLGA 701-210-76."

Research on removing radioactive fallout from farmland /

Cover title.

The effects of offshoring to China:reallocation, employment and productivity in Taiwan

We examine the extent to which outward FDI from Taiwan to mainland China has contributed to the rising unemployment rate in Taiwan. Further, it examines whether outward FDI has contributed to productivity growth in Taiwan, and the importance of linkages between sectors in determining these effects. We provide strong evidence that Taiwanese firms have increased their investments in China, and that this has lead to a reduction in employment in such sectors at home. Further, we show that these effects are also translated up the supply chain, such that outward FDI also leads to a reduction in employment upstream in the supply chain.