EVALUASI KELAYAKAN HUTAN KOTA STUDI KASUS HUTAN KOTA SRENGSENG, JAKARTA BARAT

Urban forests are one of the most important parts in urban areas. With urban physical development that continues to occur makes it difficult and expensive to add urban forests. Whereas urban forests have important benefits for urban communities, such as providing a balance to ecosystems, as water catchment areas, and being a place of carbondioxide to oxygen cycles. One of the urban forests in Jakarta is Hutan Kota Srengseng. In this research, we want to find out whether Hutan Kota Srengseng meets the criteria so that it is worth mentioning as an urban forest. The method used in this research is qualitative, field observations and literature studies. The results of this study will find out the ecosystem services provided by the Hutan Kota Srengseng and the potential that exists in the Hutan Kota Srengseng so that they can make optimal plans for developing and managing Hutan Kota Srengseng in the future. Keywords: Ecosystem Services; Urban; Urban ForestAbstrak Hutan kota merupakan salah satu bagian terpenting di perkotaan. Dengan perkembangan fisik perkotaan yang terus terjadi membuat sulit dan mahal untuk menambah hutan kota. Padahal hutan kota mempunyai memberikan manfaat yang penting untuk masyarakat kota, seperti memberikan keseimbangan bagi ekosistem, sebagai areal resapan air, dan menjadi tempat daur karbondioksida menjadi oksigen. Salah satu hutan kota yang ada di Jakarta adalah Hutan Kota Srengseng. Pada penelitian kali ini ingin mengetahui apakah Hutan Kota Srengseng telah memenuhi kriteria sehingga layak disebut sebagai sebuah hutan kota. Metode yang digunakan pada penelitian ini adalah kualitatif, observasi lapangan dan studi literatur. Hasil penelitian ini akan mengetahui layanan ekosistem yang diberikan oleh Hutan Kota Srengseng dan potensi yang ada di Hutan Kota Srengseng sehingga dapat membuat rencana pengembangan dan pengelolaan Hutan Kota Srengseng yang optimal kedepannya.

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Importance, Utilization and Health of Urban Forests: A Review

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha47111316 ◽

2018 ◽

Vol 47 (1) ◽

pp. 10-16

Author(s):

Alexandra D. SOLOMOU ◽

Eleni T. TOPALIDOU ◽

Rafaelia GERMANI ◽

Apostolia ARGIRI ◽

George KARETSOS

Keyword(s):

Ecosystem Services ◽

Literature Review ◽

Green Infrastructure ◽

Urban Areas ◽

Urban Forest ◽

Urban Forests ◽

Visual Image ◽

The Sustainable Development ◽

Academic Resources

Urbanization and development of cities are rapidly increasing across the world and urban forests constitute important tools that maintain the basic environmental and ecological functions of cities on which plant, animal and human existence depend. This paper presents a literature review on importance, utilization and health of urban forests that are important in providing ecosystem services for the sustainability of cities. Analysis of the literature from the main academic resources databases indicates that urban forest is a dynamic system which includes trees, shrubs, green space, soil and water that supports them. Urban forests provide many functions, services and benefits which are needed for the sustainable development of urban areas. In addition, health and appearance of trees’ composition are the most important factors in determining a city’s visual image and quality of life. Thus, urban forests are an important component of an ecosystem in any community development. Furthermore, management of urban forests can increase their potentials and therefore their functions, services and benefits. Green infrastructure and ecosystem services are the most efficient tools that cities can utilise to remain healthy, robust and liveable. Hence, the planners, architects, engineers, foresters, agriculturists and all those involved in decision making should be utilized the present literature review and incorporate the concept of urban forest in their plans and programs so as to achieve the sustainability of cities.

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Beijing Resident’s Preferences of Ecosystem Services of Urban Forests

Forests ◽

10.3390/f12010014 ◽

2020 ◽

Vol 12 (1) ◽

pp. 14

Author(s):

Han Zhi-Ying ◽

Youn Yeo-Chang

Keyword(s):

Ecosystem Services ◽

Air Quality ◽

Fresh Water ◽

Urban Forest ◽

Urban Forestry ◽

Urban Forests ◽

Wildlife Habitat ◽

Quality Regulation ◽

Water Provision ◽

Air Quality Regulation

This paper aims to investigate the Beijing resident’s preferences over various options of urban forest management strategies. The literature investigation and expert Delphi method were conducted to classify the ecosystem services of urban forests into six categories: (1) fresh water provision, (2) noise reduction, (3) moderation of extreme events, (4) air quality regulation, (5) species diversity and wildlife habitat, and (6) recreation and spiritual experience. To elicit the relative preferences to ecosystem service (hereafter referred to as ES) of Beijing residents, we employed the choice experiment method. The data were collected by interviews with questionnaires conducted in October 2017, and a total of 483 valid questionnaires were analyzed. The subjects of this experiment were residents older than 19 years old who have lived in Beijing for more than 1 year and have visited any one of the urban forests located in Beijing more than once during 2016. The results were as follows: Firstly, the air quality regulation ES was considered as the most important service for Beijing residents in terms of their choices of urban forest. In addition, Beijing residents regarded the fresh water provision ES as the second most important ES. Beijing residents were willing to pay up to 1.84% of the average monthly income of Chinese households annually to expand urban forest ecosystems in order to improve air quality. Secondly, apartment owners were willing to pay more municipality tax for forest ESs than residents who did not own an apartment. Thirdly, residents were more willing to pay for urban forest ESs as their income increases. The results indicated that Beijing residents were willing to pay more tax in support of urban forestry for air quality improvement. This research suggests that urban environmental policy makers in Beijing should pay more attention to the regulation function of forests (especially improving air quality) when designing and managing urban forests.

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An Effect of Urban Forest on Urban Thermal Environment in Seoul, South Korea, Based on Landsat Imagery Analysis

Forests ◽

10.3390/f11060630 ◽

2020 ◽

Vol 11 (6) ◽

pp. 630

Author(s):

Peter Sang-Hoon Lee ◽

Jincheol Park

Keyword(s):

South Korea ◽

Vegetation Cover ◽

Land Surface ◽

Urban Areas ◽

Vegetation Index ◽

Urban Forest ◽

Thermal Environment ◽

Urban Forests ◽

Cooling Effect ◽

Surrounding Areas

The urban heat island effect has posed negative impacts on urban areas with increased cooling energy demand followed by an altered thermal environment. While unusually high temperature in urban areas has been often attributed to complex urban settings, the function of urban forests has been considered as an effective heat mitigation strategy. To investigate the cooling effect of urban forests and their influence range, this study examined the spatiotemporal changes in land surface temperature (LST) of urban forests and surrounding areas by using Landsat imageries. LST, the size of the urban forest, its vegetation cover, and Normalized Difference Vegetation Index (NDVI) were investigated for 34 urban forests and their surrounding areas at a series of buffer areas in Seoul, South Korea. The mean LST of urban forests was lower than that of the overall city, and the threshold distance from urban forests for cooling effect was estimated to be roughly up to 300 m. The group of large-sized urban forests showed significantly lower mean LST than that of small-sized urban forests. The group of urban forests with higher NDVI showed lower mean LST than that of urban forests with lower mean NDVI in a consistent manner. A negative linear relationship was found between the LST and size of urban forest (r = −0.36 to −0.58), size of vegetation cover (r = −0.39 to −0.61), and NDVI (r = −0.42 to −0.93). Temporal changes in NDVI were examined separately on a specific site, Seoul Forest, that has experienced urban forest dynamics. LST of the site decreased as NDVI improved by a land-use change from a barren racetrack to a city park. It was considered that NDVI could be a reliable factor for estimating the cooling effect of urban forest compared to the size of the urban forest and/or vegetation cover.

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IDENTIFIKASI JENIS-JENIS SAMBUNGAN PADA KONSTRUKSI RUMAH PANGGUNG DI SAMARINDA

ULIN Jurnal Hutan Tropis ◽

10.32522/ujht.v3i1.2565 ◽

2019 ◽

Vol 3 (1) ◽

Author(s):

Kusno Yuli Widiati ◽

Maretha Silvana Hartanti

Keyword(s):

Urban Areas ◽

Qualitative Method ◽

Environmentally Friendly ◽

Wood Material ◽

Related Field ◽

Catchment Areas ◽

Scarf Joint ◽

Photo Documentation ◽

Mortise And Tenon ◽

Water Catchment

The existence of a house on stilts when compared to residential houses of concrete can be said to be more environmentally friendly, especially in water catchment areas or marshy. However, the number of houses on stilts is decreasing. This is because the stigma of stilt houses which are generally made of wood is an average house for the lower classes, especially in urban areas. In addition to being more environmentally friendly, the stage house also has its own uniqueness, one of which is the shape and type of connections used to extend the dimensions of the wood material used. Therefore, to enrich the existing information, this study aims to identify the types of connections in the upper girder and stage bottom girders so that it is expected to help further research in the related field of research. This research uses descriptive qualitative method by using photo documentation and conducting interviews as supporting data. The results showed that there were several types of joints but generally used the connection of mortise and tenon, half lap, scarf joint, scarf joint with under-squinted ends and scarf joint with wedges which were aided by pegs, bolts and wood clamps.

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Miami-Dade County’s Urban Forests and Their Ecosystem Services

EDIS ◽

10.32473/edis-fr347-2011 ◽

2011 ◽

Vol 2011 (8) ◽

Author(s):

Francisco Escobedo ◽

Joy Klein ◽

Micah Pace ◽

Henry Mayer ◽

Sebastian Varela

Keyword(s):

Air Pollution ◽

Ecosystem Services ◽

Real Estate ◽

Natural Resource ◽

Urban Forest ◽

Urban Forests ◽

Forest Resources ◽

Dade County ◽

Fact Sheet

The urban forest in Miami-Dade County reduces air pollution, controls stormwater, reduces crime, increases real estate values, and improves livability. This 14-page fact sheet can be used by urban foresters, residents, and planners to better understand and maximize the benefits of this important natural resource. Written by Francisco Escobedo, Joy Klein, Micah Pace, Henry Mayer, and Sebastian Varela, and published by the UF Department of School of Forest Resources and Conservation, July 2011. (UF/IFAS Photo by Eric Zamora) http://edis.ifas.ufl.edu/fr347

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Potensi Biomassa Dan Karbon Tersimpan Tegakan di Ruang Terbuka Hijau Kota Polewali, Sulawesi Barat

Jurnal Hutan dan Masyarakat ◽

10.24259/jhm.v12i1.9675 ◽

2020 ◽

Vol 12 (1) ◽

pp. 49

Author(s):

Daud Irundu ◽

Mir A Beddu ◽

Najmawati Najmawati

Keyword(s):

Global Warming ◽

Urban Areas ◽

Green Space ◽

Urban Forest ◽

Urban Forests ◽

Tree Height ◽

Strong Relationship ◽

Coefficient Of Determination ◽

Relationship Of ◽

The Relationship

Global warming is one of the major environmental issues of this century. Carbon dioxide (CO2) emissions are the main cause of global warming. Green open space (RTH) such as urban parks, urban forests and green lines play an important role in mitigating global warming and climate change in urban areas because it is able to reduce CO2 from the atmosphere. This study aims to determine the potential of biomass and carbon stored in the Green Open Green Space of Polewali, West Sulawesi. Data collection for stored biomass and carbon is carried out at three green space locations including; Urban forest and city park and green lane each made three plots measuring 20 m x 20 m, and three plots on the Green Line measuring 1200 m. Retrieval of data by measuring tree height and diameter, analysis to obtain the dry volume, biomass and carbon stored for each tree species contained in the Polewali green space. Biomass is obtained by the formula M = BJ x Vk x BEF, the stored carbon value is obtained from the product of biomass by 0.47. The magnitude of the relationship of volume with biomass and carbon uses a regression equation (Ŷ=a+bX). The results show there are types of Glodokan (Polyalthia longifolia), Johar (Senna siamea), Mahogany (Swetenia sp) and Trambesi (Samanea saman) which are spread in the Polewali open green space. Trambesi is a type that has dominant biomass and stored carbon of 381.95 (tons / ha) and 179.52 (ton/ha). Green lane is the type of green space that has the most stored carbon and is currently 440.94 (ton/ha) and 207.24 (ton/ha). The overall green space biomass is 571.83 (ton/ha) and stored carbon is 268.76 (ton/ha) found in urban forests, urban gardens and green belt. The relationship of volume with biomass and stored carbon shows a very strong relationship with the coefficient of determination (R2) of 0.96.

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RUANG TERBUKA HIJAU DALAM PERSPEKTIF JASA EKOSISTEM (STUDI KASUS RUANG TERBUKA HIJAU KAWASAN PERKOTAAN YOGYAKARTA)

10.31237/osf.io/f4epw ◽

2019 ◽

Author(s):

GISKA PARWA MANIKASARI

Keyword(s):

Ecosystem Services ◽

Urban Area ◽

Ecosystem Service ◽

Open Space ◽

Urban Forest ◽

Urban Forests ◽

Pairwise Comparison ◽

Open Spaces ◽

City Parks ◽

Highest Weight

Green Open Spaces have a variety of ecosystem services of which can be utilized by society. This study aims are to identify green open space criteria value for determining ecosystem services, to study the conditions and distributions of ecosystem service potentials of Green Open Spaces in Urban Area of Yogyakarta, and optimize Green Open Spaces in the Urban Area of Yogyakarta in the perspective of ecosystem services. The research locations included Green Open Spaces of Urban Area of Yogyakarta consisting of urban forests type, city parks, river borders, and road greenbelts, comprising of twelve research locations. The identification of the criteria for Green Open Spaces was done using the expert judgment and pairwise comparison methods resulting in weight values. In each observation location, a plot was made for monitoring the conditions of each Green Open Space criterion using a score. The data from the field and the assessment by experts were analyzed by means of scoring analysis to find out the level of ecosystem services in each research location and they were further descriptively and deductively analyzed by taking account of the area allotment and the available regulations to attain the conditions of Green Open Spaces with optimal ecosystem services. The results of the study show that of the sixteen criteria under study, each plays a role in ecosystem services. The values of ecosystem services of Green Open Spaces in KPY show different values for each type of Green Open Spaces. In general, the types of urban forests, including Urban Forest of Arboretum of Faculty of Forestry, Gadjah Mada University, and Arboretum of Gembira Loka Zoo, have ecosystem services in the high category for the eleven ecosystem services, while the types of Green Open Spaces of city parks, including Denggung Park, Gajah Wong Educational Park, and Lalu Lintas Park, and riverbanks, including Code’s riverbank, Gajah Wong’s riverbank, and Winongo’s riverbank, on the average have ecosystem service va lues in the moderate category, and the types of Green Open Spaces of street greenbelts, including greenbelt of Jalan Magelang, greenbelt of Jalan Cik Di Tiro, and greenbelt of Jalan Malioboro, all have ecosystem service values in the low category. Based on the results, optimalize Green Open Spaces in KPY in the perspective of ecosystem services can be done by optimizing each criteria with the highest weight value adjusted to the allotment of each type of Green Open Spaces and the regulations related to Green Open Spaces.

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Traces of urban forest in temperature and CO<sub>2</sub> signals in monsoon East Asia

10.5194/acp-2021-354 ◽

2021 ◽

Author(s):

Keunmin Lee ◽

Je-Woo Hong ◽

Jeongwon Kim ◽

Jinkyu Hong

Keyword(s):

Co2 Emissions ◽

Urban Areas ◽

Urban Forest ◽

Urban Forests ◽

Forest Canopies ◽

Area Index ◽

Drought Period ◽

Vegetation Activity ◽

Urban Heat ◽

The Impact

Abstract. Cities represent a key space for our sustainable trajectory in a changing environment, and our society is steadily embracing urban green space for its role in mitigating heatwaves and anthropogenic CO2 emissions. This study reports two-year surface fluxes of energy and CO2 measured via the eddy covariance method in an artificially constructed urban forest to examine the impact of urban forests on air temperature and net CO2 exchange. The urban forest site shows typical seasonal patterns of forest canopies with the seasonal march of the East Asian summer monsoon. Our analysis indicates that the urban forest reduces both the warming trend and urban heat island intensity compared to the adjacent high-rise urban areas and that photosynthetic carbon uptake is large despite relatively small tree density and leaf area index. During the significant drought period in the second year, gross primary production and evapotranspiration decreased, but their reduction was not as significant as those in natural forest canopies. We speculate that forest management practices, such as artificial irrigation and fertilization, enhance vegetation activity. We also stipulate that ecosystem respiration in urban forests is more pronounced than typical natural forests in a similar climate zone. This can be attributed to the substantial amount of soil organic carbon available due to intensive historical soil use and soil transplantation during forest construction, as well as relatively warmer temperatures in urban heat domes. Our observational study also indicates the need for caution in soil management for less CO2 emissions in urban areas.

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Assessing the relative importance of human and spatial pressures on non-native plant establishment in urban forests using citizen science

NeoBiota ◽

10.3897/neobiota.65.65415 ◽

2021 ◽

Vol 65 ◽

pp. 1-21

Author(s):

Katherine Duchesneau ◽

Lisa Derickx ◽

Pedro M. Antunes

Keyword(s):

Species Richness ◽

Rural Areas ◽

Urban Areas ◽

Native Species ◽

Urban Forest ◽

Urban Forests ◽

Native Plant ◽

Plant Introductions ◽

Native Species Richness ◽

Urban Activities

Since 2007, more people in the world live in urban than in rural areas. The development of urban areas has encroached into natural forest ecosystems, consequently increasing the ecological importance of parks and fragmented forest remnants. However, a major concern is that urban activities have rendered urban forests susceptible to non-native species incursions, making them central entry sites where non-native plant species can establish and spread. We have little understanding of what urban factors contribute to this process. Here we use data collected by citizen scientists to determine the differential impacts of spatial and urban factors on non-native plant introductions in urban forests. Using a model city, we mapped 18 urban forests within city limits, and identified all the native and non-native plants present at those sites. We then determined the relative contribution of spatial and socioeconomic variables on the richness and composition of native and non-native plant communities. We found that socioeconomic factors rather than spatial factors (e.g., urban forest area) were important modulators of overall or non-native species richness. Non-native species richness in urban forest fragments was primarily affected by residential layout, recent construction events, and nearby roads. This demonstrates that the proliferation of non-native species is inherent to urban activities and we propose that future studies replicate our approach in different cities to broaden our understanding of the spatial and social factors that modulate invasive species movement starting in urban areas.

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Strong variations in urban allergenicity riskscapes due to poor knowledge of tree pollen allergenic potential

Scientific Reports ◽

10.1038/s41598-021-89353-7 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Rita Sousa-Silva ◽

Audrey Smargiassi ◽

Daniel Kneeshaw ◽

Jérôme Dupras ◽

Kate Zinszer ◽

...

Keyword(s):

New York ◽

Urban Areas ◽

Urban Forest ◽

Pollen Allergy ◽

Urban Forests ◽

Urban Environments ◽

Tree Pollen ◽

Allergenic Potential ◽

Common Tree ◽

Pollen Allergenicity

AbstractExposure to allergenic tree pollen is an increasing environmental health issue in urban areas. However, reliable, well-documented, peer-reviewed data on the allergenicity of pollen from common tree species in urban environments are lacking. Using the concept of ‘riskscape’, we present and discuss evidence on how different tree pollen allergenicity datasets shape the risk for pollen-allergy sufferers in five cities with different urban forests and population densities: Barcelona, Montreal, New York City, Paris, and Vancouver. We also evaluate how tree diversity can modify the allergenic risk of urban forests. We show that estimates of pollen exposure risk range from 1 to 74% for trees considered to be highly allergenic in the same city. This variation results from differences in the pollen allergenicity datasets, which become more pronounced when a city’s canopy is dominated by only a few species and genera. In an increasingly urbanized world, diverse urban forests offer a potentially safer strategy aimed at diluting sources of allergenic pollen until better allergenicity data is developed. Our findings highlight an urgent need for a science-based approach to guide public health and urban forest planning.

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