Perspective the use of space tourism in rural area, but not only in this area, must be based on the concept of ecological space based on the principle of equity, then an area needs to be provided in-house and in conditions of sustainable development. Sustainable human development can not be conceived outside the human settlements development of a viable economy and a diversified social life in a healthy environment, ensured respect cultural heritage - historical society. Numerous researches have shown that ecotourism can be a viable alternative for economic development of Romanian rural communities. This research aims to study ecotourism in the context of sustainable development of rural Romanian areas and conditions to protect its natural resources. This category of natural resources now put the following problems: exploitation beyond the regeneration, especially in soils and forests, pollution of the environment that minimizes the potential for regeneration. Having as main source of information national and international literature and data provided by the National Institute of Statistics of Romania, was created a pretty thorough fundamental research in specific field. The main research method was used were: bibliographical study, literature review and synthesis, collection and processing of statistical data, etc. Environmental protection has been considered as a basic problem in tourism since the beginning of this activity in our country. Ecological attitude towards natural resources exploitation involves giving unlimited and irrational generalization about the importance of scientific concept of biosphere preservation of natural resources for future generations. In the spirit of these principles requires development of ecological strategies of development (eco-development), capable of providing a healthy and rational use of resources specific to a particular ecosystem, to meet basic human needs. Protected areas are, in part, and highly attractive tourist destinations such as Danube Delta Biosphere Reserve, National Parks and other natural reserves, except, of course, scientific reserves (strictly protected). Protection and conservation of rural tourism potential is emerging as a separate issue, which requires collaboration of specialists in various fields. Starting from the concept that "sustainable development of viable and sustainable ecological development that is considered to meet the needs of the present without compromising the ability of future generations to meet their own needs" tourism, especially ecotourism, as an economic activity, it is this scientific approach and should cooperate with other industries and economic activities to ensure environmental quality, resource base and its survival. More so, it becomes necessary co-participation, to this end, the central and local authorities, local communities, along with tourism providers and related services.

For accommodation service providers one of the main objectives is to obtain and maintain a higher degree of using of accommodation capacity in operation. Based on these considerations, the paper analyzes the evolution of the index of utilization of the accommodation capacity in operation in the development regions of Romania for a period of six years in order to reveal similarities and disparities between them. For this purpose, besides the analysis of the developments of the index of utilization of the accommodation capacity in operation, the evolution of dispersion spreading is also analyzed. Both the variability amplitudes of the two main indicators and their trend are analyzed. The conclusion of the study is the fact that in Romania, the dispersion of the index of the use of the accommodation capacity in operation had an increasing trend, which means that in terms of the ratio between demand and supply of accommodation, the disparities between development regions continue to grow with all the negative implications on the performance of the tourism industry in Romania.

Foraccommodationserviceprovidersoneofthemainobjectivesistoobtainandmaintainahigher degreeofusingofaccommodationcapacityinoperation.Basedontheseconsiderations,thepaper analyzestheevolutionoftheindexofutilizationoftheaccommodationcapacityinoperationinthe developmentregionsofRomaniaforaperiodofsixyearsinordertorevealsimilaritiesanddisparities betweenthem.Forthispurpose,besidestheanalysisofthedevelopmentsoftheindexofutilization oftheaccommodationcapacityinoperation,theevolutionofdispersionspreadingisalsoanalyzed. Boththevariabilityamplitudesofthetwomainindicatorsandtheirtrendareanalyzed.Theconclusion ofthestudyisthefactthatinRomania,thedispersionoftheindexoftheuseoftheaccommodation capacityinoperationhadanincreasingtrend,whichmeansthatintermsoftheratiobetweendemand andsupplyofaccommodation,thedisparitiesbetweendevelopmentregionscontinuetogrowwith allthenegativeimplicationsontheperformanceofthetourismindustryinRomania.

The planning options for tourist activities take into account the potential tourists' behavior and travel preferences. In this context, the study presents a systematic framework on the travel preferences of European tourists. These are highlighted by the number and types of trips, in which priority is assigned to those oriented towards rural and mountain areas, as well as by trip expenditure related to basic services (accommodation and transport). The analysis involves a clustering of EU countries, taking into account the previously mentioned indicators, in order to identify tourism behavior patterns in European countries. The conclusions take into account the increase of global awareness regarding the tourists' preferences, especially that the orientation towards ecological, green tourist destinations tends to be perpetuated in the current European context, in which the COVID_19 pandemic deeply affects the tourist activity.

The process of converting the economy to more sustainable production forms is the essence of bio-economy, currently becoming more and more important in all the European countries. Sustainability is a complex concept that can be quantified through an entire system of indicators. A "marker" of corporate environmental responsibility, of the extent and manner in which the companies apply social responsibility codes is the ecological footprint. The present study identifies, using a cumulative ordinal logistic regression model with proportional odds, the factors with significant impact on the behavioral changes of the ecological footprint of the production, for finding ways of increasing the sustainability in the business environment, through a better application of social responsibility codes. At the same time, the variables included in the model were selected in accordance with the principles of the European Corporate Social Responsibility Strategy, serving as criteria for the hierarchy and clustering of European countries, for identifying patterns and predicting the behavior of ecological footprint of production, as a prerequisite for optimizing social environmental responsibility and applying social responsibility codes in the business environment. The analysis results indicate that the educational level of labor force, the degree of economic freedom and the use of renewable energy sources have a significant positive influence on the ecological footprint behavior, while the social exclusion has a significant negative effect, with a major impact on the prospects of sustainable growth, specific to bioeconomy.