Stresses from desolate urban environments cause illnesses and worsen health conditions of urban residents, while natural environments have a positive influence on human. Natural healing programs such as forest therapy and horticultural therapy can be differentiated by the characteristic of activity space. However, previous studies of healing programs have focused on either forest therapy or horticulture therapy and there is a limit to comprehending the effects of adopting and connecting various healing programs.This study compares and analyzes the physiological and psychological effects of forest therapy and horticultural therapy to identify the effects and differences by types of healing programs.The before and after effects of horticultural therapy and forest therapy are measured by experiment and survey for 5 days with 5 subjects in each program. For physiological reaction, blood pressure, pulse, and cortisol levels are measured and the profile of moods states(POMS) is used to measure psychological reaction. Collected data are analyzed with the analysis of variance(ANOVA) and Paired-Sample T-test in SPSS 18.0.The results of this study are as follows: 1) forest therapy and horticultural therapy show positive effects in physiological and physiological aspects, 2) forest therapy is more effective than horticultural therapy in physiological relaxation and stress mitigation, 3) horticultural therapy has a tendency to alleviate depression more effectively than forest therapy. In conclusion, this study contributes to providing fundamental information for the development of healing programs and design guidelines for healing spaces through identifying the characteristics of each healing program.

In recent years, natural healing space studies have been done in health care and forestry. However, previous studies have focused on healing effects of natural elements in interior space or natural landscape view. And there is a limit to using the evidence for healing space design. The aim of this study is to discover the relationship between types and effects of healing space for evidence-based design. This study compares and analyzes the mayor images, psychological restorativeness, and satisfaction to identify the effects and differences of natural trail, designed trail, natural shelter, and designed shelter by types of forest space. Collected data is analyzed with a factorial analysis, valiance analysis and multiple regression analysis in SPSS 18.0. The results of this study are as follows: 1) Among five factors consisting psychological restorativeness, natural trail can be achieved with 'being away' and 'compatibility' and designed shelter can be achieved with 'fascination' and 'coherence'., 2) Psychological restorativeness values higher in images with higher excitement, brightness, vitality, and beautifulness as well as in images with lower level of disorder., 3) Among five factors consisting psychological restorativeness, higher forest satisfaction can be achieved with a higher level of 'being away' and 'coherence'. In conclusion, this study contributes to providing fundamental information for design guidelines of healing spaces through identifying the characteristics of healing environment by types of forest space.