Abstract
The adaptation measures of agricultural crops to current climate change are also reflected at the level of land-use planning for species with resistance to rainfall shortages and periods of prolonged droughts. The present paper aimed at the spatial modeling of land favorability for alfalfa (Medicago sativa L.) within Bihor county, which is located in Northwest Romania. This was performed by using GIS spatial analysis techniques, particularly the technique of rating agricultural plots by using as a modeling basis the synthetic climate indicators, soil indices, as well as topographic characteristics, which are considered relevant for the studied species. As a result of the modeling process, agricultural plots that are favorable for the alfalfa culture were identified. A comparative analysis of the profit was also carried out both for the green and dry masses of eight types of alfalfa, which are suitable for the national environmental conditions. Land favorability modeling for alfalfa cultivation will be carried out by using GIS spatial analysis techniques, which allow the use of large databases while maintaining the necessary degree of detail, and they make possible the correlations between factors and production estimated per hectare, which are correlations that are characteristic for the environmental factors. Thus, for the studied territory, the best green alfalfa production was identified as being obtained from the Carinca and Daniela varieties, whereas the Mihaela and Teodora varieties were noticed to provide the best dry alfalfa production.
Highlights
IntroductionCarrying out studies aimed at identifying the effects of climate change on the basic species cultivated at continental level [1,2] represents a constant preoccupation and the result of several collaborations between researchers, research institutions, farmers, and active agriculturers who have to confront directly the reality present in the field
The current studies regarding the tendency of the climatic parameters as well as the deviations from the seasonal environments— implicitly, the manifestation of their negative effects—induce problems related to the management of agricultural plots and impose the use of species with wide ecological plasticity that can adapt to these current pressures.Carrying out studies aimed at identifying the effects of climate change on the basic species cultivated at continental level [1,2] represents a constant preoccupation and the result of several collaborations between researchers, research institutions, farmers, and active agriculturers who have to confront directly the reality present in the field
An important factor in identifying the best territories for alfalfa cultivation is the analysis of the slope angle (Figure 3A)
Summary
Carrying out studies aimed at identifying the effects of climate change on the basic species cultivated at continental level [1,2] represents a constant preoccupation and the result of several collaborations between researchers, research institutions, farmers, and active agriculturers who have to confront directly the reality present in the field. This is the reason why we consider that the present study is a necessity regarding the identification of some recommendations with useful practical values for those who fight on a daily basis against the direct effects of climate change in agriculture [3,4,5]. The scenario according to which summers will become warmer and drier, with a diminished water reserve in the soil, implies the need for efficient planning and, last but not least, the choice of culture with requirements adapted to the new environmental factors [8]
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