Assessment of Five-Year Vegetation Cover Changes to Support Green Open Spaces Monitoring in Surakarta, Central Java, Indonesia

Ahmad

Simatupang

et al. 2022

Medan is the capital city of North Sumatra Province. It is one of the biggest cities on Sumatra Island. Big cities in Indonesia generally have problems with environmental degradation. One of the efforts to preserve the environment in urban areas is to provide public green spaces. Ahmad Yani Park is a green space dominated by trees that grow compactly and tightly in 1.3 ha of area. The research has been conducted at Ahmad Yani Park, one of the favorite places for people to gather and enjoy the freshness of clean air. Research on tree diversity in several public green spaces is needed to conduct as one of the efforts to provide biodiversity data and information in urban. This research is aimed to analyze the tree structure, composition, and diversity in Ahmad Yani Park to support sustainable development goals, especially in an urban area. The parameters of vegetation collecting by using census methods. The condition of vegetation and environment were assessed by using relative density, Shannon Wienner Diversity Index, and Evenness Index. The Ahmad Yani Park contained 240 individuals of 32 species It dominated by 62 individuals of Mahogany (S. macrophylla). The dominant vegetation is in 20 - 150 cm diameter class (59%). It is a mature phase of tree. While the juvenile and seedling stage have 26% and 15%. The Ahmad Yani Park has 2.75 score of Shannon Wiener Diversity index. It means this park is moderate diverse with a fairly stable environment.

Section: Introductionmentioning

confidence: 99%

Tree diversity in Medan Ahmad Yani Park

Ahmad

Simatupang

et al. 2022

“…The Shannon-Wiener diversity index has been widely used in environmental research to measure species richness and diversity because of its simplicity of estimation and interpretation [20]. This index provides prior information about the tree community found in a location [22]. The highest diversity was found in the growth rate of trees and saplings with values of 3.23 and 3.03, respectively.…”

Section: Vegetation Diversity At Sibolangit Tourism Parkmentioning

confidence: 99%

Composition and diversity of tropical forest vegetation at Sibolangit tourism park, North Sumatra, Indonesia

Ulfa

Rambey

et al. 2022

Vegetation is an important component of preventing erosion and drought, regulating water and hydrology, improving soil physical, chemical, and biological properties, balancing the carbon dioxide and oxygen in the air, conserving biodiversity, effecting other biota in ecosystem, and supporting the ecotourism potential. The effect varies depending on the structure and composition of the plants that comprise the area's vegetation formation. Sibolangit tourism park, with an area of 24.85 Ha, was established in 1980 by Minister of Agriculture Decree No. 636/Kpts/Um/1980. This study aims to examine the importance value index and diversity index of species in the Sibolangit tourism park area. The data was sampled using a simple random sampling method with a 5% sampling intensity. The observation plots were randomly placed to cover all the study sites. Species, diameter, height, and the number of each individual were recorded during field observation. The study recorded a total of 67 species in Sibolangit Tourism Park. The dominant species at the tree stage was Pterocarpus indicus with an IVI of 28%. Mitrephora obtusa was the dominant species at the pole and sapling stages with the IVI of 52% and 35%, respectively. At the seedling stage, Strombosia ceylanica was the dominant with an IVI of 62%. The vegetation diversity at the study site was in the moderate range with the 2.71 of Shannon-Wiener diversity index.

“…Surakarta is included in the ten cities with the largest population density, reaching 507,825 people [1]. The increase in population in Surakarta has resulted in increased pressure on green open spaces [2]. The rate of urbanization with various M M Harahap 1,2,3* , E Poedjirahajoe 4 , S H M B Santosa 5 and P Y A P objectives that are difficult to contain and with a limited amount of land is an obstacle in the management of green open spaces in the city of Surakarta.…”

Section: Introductionmentioning

confidence: 99%

Analysis of correlation between vegetation cover density and urban index in Surakarta to support urban area sustainability

Poedjirahajoe

Santosa

et al. 2022

The population of Surakarta has increased, putting pressure on vegetation and increasing demand for land availability. The population reached 500,173 people in 2010. The population trend is increasing every year so that the need for land as a place to live and living facilities also increases. This study aims to analyze the relationship between canopy density and the urban index in a 5 year period (2010 – 2015). The method used in assessing the density of the vegetation canopy is the calculation of the Normalized Difference Vegetation Index (NDVI) and the urban index. The calculation of the two index values uses Landsat 8 OLI satellite image data in 2015. The results show that the value of canopy density is inversely proportional to the value of urban index. The higher value of canopy density in Surakarta is followed by the lower value of urban index. The relationship between both is very close, marked by very high correlation and determination coefficient values, namely -0.98 and 0.97. Research on canopy density and urban index on a regular basis is expected to be part of the process of monitoring and evaluating urban area development and as input for local governments in the decision-making process.