An ecosystem-based management approach (EBM) is suggested as one solution to help to tackle environmental challenges facing worldwide farming systems whilst ensuring socio-economic demands are met. Despite its usefulness, the application of this approach at the farm-scale presents several implementation problems, including the difficulty of (a) incorporating the concept of ecosystem services (ES) into agricultural land use decision-making and (b) involving the farmer in the planning process. This study aims to propose a solution to overcome these challenges by utilising a geodesign framework and EBM approach to plan and design a sustainable multifunctional agricultural landscape at the farm scale. We demonstrate how the proposed approach can be applied to plan and design multifunctional agricultural landscapes that offer improved sustainability, using a New Zealand hill country farm as a case study. A geodesign framework is employed to generate future land use and management scenarios for the study area, visualize changes, and assess the impacts of future land use on landscape multifunctionality and the provision of associated ES and economic outcomes. In this framework, collaboration with the farmer was carried out to obtain farm information and co-design the farmed landscapes. The results from our study demonstrate that farmed landscapes where multiple land use/ land cover types co-exist can provide a wide range of ES and therefore, meet both economic and environmental demands. The assessment of impacts for different land use change scenarios demonstrates that land use change towards increasing landscape diversity and complexity is a key to achieving more sustainable multifunctional farmed landscapes. The integration of EBM and geodesign, is a transdisciplinary approach that can help farmers target land use and management decisions by considering the major ES that are, and could be, provided by the landscapes in which these farm systems are situated, therefore maximising the potential for beneficial outcomes.
The use of fuzzy sets to assess uncertainty in land-use/cover maps provides a robust conceptual framework for examining unique characteristics of map error. By recognizing the possibility of gradations of error, fuzzy sets can be used to assess errors due to class similarity, or the sensitivity of the map legend to class boundaries. Building on the theoretical work of Gopal and Woodcock (1994), we present a practical methodology for assessing map errors using fuzzy sets. A key component of our methodology focuses on improving the decision-making process map experts assume when conducting a fuzzy set assessment of map errors. Using an ecological context to define varying levels of land-cover class similarity, we demonstrate how a decision framework guides the map experts’ decisions and provides a more meaningful assessment of map errors. Our methodology differs from traditional fuzzy set error assessment methods in that the map expert evaluates misclassifications within the error matrix (off-diagonal cells) rather than individual reference sites. Advantages to a matrixbased approach include a reduction in the time required by map experts to evaluate map errors, and a relatively simple means of conveying map error information to the map user. We conclude that establishing criteria for determining multiple set memberships in a fuzzy set error assessment is an important methodological procedure that is commonly overlooked. Our methodology, designed to explicitly identify land-cover class similarities based on ecological criteria, serves as a practical example of how to address this issue.
A national land cover map derived from moderate resolution imaging spectrometer (MODIS) imagery products was developed for Honduras, Central America. We compared two methods of image classification: a cluster busting (CB) classification technique and a classification and regression tree (CART) algorithm. Field data samples were used to validate the resulting classifications. Inthe classification process, we used: a Google Earth™ sampling scheme, a time series of MODIS's Enhanced Vegetation Index (EVI) and digital elevation data(shuttle radar topography mission, SRTM). The CART classification method provided a more accurate classification (Kappa coefficient, K = 74%, overall model accuracy = 79.6%) while compared to the CB classification (Kappa coefficient, K = 9%, overall model accuracy = 25.1%). The findings are useful to design more accurate MODIS classification protocols in tropical countries.