International Journal of Scientific and Research Publications, Volume 10, Issue 4, April 2020 771 ISSN 2250-3153 http://dx.doi.org/10.29322/IJSRP.10.04.2020.p10084 www.ijsrp.org Profile and function of green open space vegetation in Malang Sumardi Basri 1 , Amin Setyo Leksono 2* , Bagyo Yanuwiadi 2 1 Forestry Study Program, Faculty of Forestry, Malang Institute of Agriculture, Indonesia 2 Departments of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, Indonesia 2 Faculty of Agriculture, Universitas Brawijaya, Indonesia DOI: 10.29322/IJSRP.10.04.2020.p10084 http://dx.doi.org/10.29322/IJSRP.10.04.2020.p10084 Abstract- Green open space is the areas developed to serve function as food, shade, protection, aesthetic and culture which is the main function to support the green city. The purpose of this study is to compare the profile and function of green open space in the city of Malang. This research was conducted in four green open spaces in Malang, East Java, Indonesia. Three of those were located in municipal areas as follow Veterans Green Belt (VGB), Jakarta Green Belt (JGS), Velodrome Green Space (VGS); while a study site was selected in a Permata Jingga Neighborhood Space (PNS), Neighborhood or resident area. Green space profile was analyzed by vegetation analysis indices including density, species richness and diversity. Green space function was assessed by interviews with informants. The level of density of green open space trees in Malang ranges from 505 to 1046 per hectare. The highest species richness, species diversity, and indigenous index found in VGS then followed by JBG. The high species richness, species diversity, and indigenous indices in Velodrome are related to the shape of green space. The VGS is square while the other has a belt shape. Rectangle shape allows various types to grow in green space. The green spaces serve as shelter, protection, food, medicine, and aesthetic. Of the several types assessed, some species have a high enough use value. Avocados and manga were categorized as having a high utilization index as foods. Pine was considered to have a high medicinal use value. Gamhar, Palm oil, Mahogany, and Jackfruit have a high shading index. The Cockspur coral tree, Palm princess, Cuban royal palm and the Bottle brush have a high index of use to support the aesthetics of city parks, while Gamhar, mahogany, and Jackfruit use a high protection index. Key words-biodiversity, city park, function, conservation, vegetation I. INTRODUCTION The importance of urban green open space has been demonstrated in several studies [1]. Urban green open space is an important component that determines the quality of human life, both ecologically and socially-psychologically. The open green space is a meeting between natural and human systems in an urban environment. Urban green spaces, such as parks, forests, green roofs, streams, and community gardens, provide important ecosystem services. Green spaces also support physical activity, psychological well-being, and the health of the city's general public. Green Space plays an important role in supporting urban ecological and social systems, a fact which supports public commitments in Britain and Europe. The amount of supply, distribution of green space, and access to that space are the main contributors to social and ecological functions in the urban environment The development of Malang City has gone out of its original plan. Malang city. Change the same changes. Being a green open space (GOS) is a developed area [2]. Open space is a space that can be accessed by the public within a limited and indefinite period of time. Green open spaces can be built, walkways, city parks and urban forests. The minimum green space area of 30% is the minimum size of vegetated area to provide a balanced ecosystem of the area. Green open spaces can control growth and maintain green areas, recreational areas or embracing. Guidelines are applied, effectively helping to save global effects and climate change in Indonesia. The concept offered by green developers is no more than a marketing strategy. Developers often associate the concept of green living with trees, plants, or the color of green. The most basic element of the Green City ecosystem is the main vegetation of trees; vegetation remains a balance of ecosystems in residential areas. Ecosystem elements that must remain balanced are hydrological function, microclimate, clean air and carbon dioxide, regulate environmental health, and synergize the natural and artificial environment. Plant cultivation on the median road not only functions as aesthetics, but also has a functional value that can improve the function of the median road as a shade, a protector for road users. Therefore, species selection and plant management in the road median must be in accordance with the criteria for physical characteristics, plant ecology, road approval, and regulation for the road median [3]. The smart green city initiative is a combination of the concept of smart and green city in certain strategic areas. The background to this publication is the rapid growth of cities and various problems such as traffic jams, floods, landslides, slums, social gathering, and reducing the amount of green open space. In recent years, the region's problems