## 5 Conclusions  
Using the GIS technology as a method of data analysis for soil, climate, and topography allows the obtaining of thematic maps that are necessary for the qualitative and quantitative analysis and characterization of the studied area in all its complexity. These methods of analysis are used in various studies of environment, agriculture, land-use planning, and prediction-making about the distribution area of the species or of the potential effects felt by them in the context of anthropogenic pressure or global climate change. The implementation of particular measures in order to diminish the negative effects of climate change in the agricultural sector implies the use of agricultural techniques that have a role in reducing the gas emissions that cause the greenhouse effect, by complying with the requirements of the reform made by the Common Agricultural Policy (CAP) and by the modernization of the irrigation systems that would diminish the losses from the agricultural sector. Thus, a model based on GIS techniques was proposed for the territory represented by Bihor county. This allowed us to identify the levels of favorability and restriction induced by environmental factors on the alfalfa culture.  
From the economic point of view, profitability is extremely important for farmers and investors in the case of alfalfa cultivation. In addition to the economic values and the benefits for soil and environment, the production per hectare is high for both green mass production and dry mass production, and the sowing frequency--which can be carried out once every 3 to 4 years--represents positive aspects to be pursued for the efficient management of the agricultural territories. Thus, the potential green and dry mass of alfalfa quantity was calculated at the level of administrative territorial units. This was made in order to highlight the potential economic profit that could be obtained if farmers and land owners from every administrative territorial unit chose to start alfalfa plantations on areas with the highest favorability level, taking into account soil, climate, and topographic characteristics.  
This possibility of quantitative and qualitative integration by means of GIS technology of all agricultural plots that are used at the moment as pastures or agricultural territoriesrepresents the main advantage for land owners. This allows the elaboration of a detailed analysis of limitative factors for the alfalfa production in exclusive culture or in mixed culture for pastures in such a way that if limitative factors are linked to pedological characteristics, measures to diminish their negative effects can be applied. In the case of climatic factors, the possibility of intervention is limited, but as a result of the specialized analysis, other ways of land-use can be proposed, so that each determinant ecological factor may be valorized and highlighted through the economic value of the territory.  
The following are available online at [[https://www.mdpi.com/article/10_390/app11094205/s1](https://www.mdpi.com/article/10_390/app11094205/s1)]([https://www.mdpi.com/article/10_390/app11094205/s1](https://www.mdpi.com/article/10_390/app11094205/s1)), Supplementary File S1: Potential Amount of Alfalfa in Green Mass at ATU Level, Supplementary File S2: Potential Amount of Alfalfa in Dry Mass at ATU Level.  
Conceptualization, R.B. and S.R.; methodology, S.R. and S.B.; software, S.R. and S.B.; validation, F.D.T., C.D. and I.M.B.; formal analysis, R.B. and S.R.; investigation, F.D.T., C.D. and I.M.B.; writing--original draft preparation R.B. and S.R.; writing--review and editing, S.R. and S.B.; visualization, F.D.T.; supervision, R.B. All authors have contributed equally to the work. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
Not applicable[PERSON]  
The authors declare no conflict of interest.