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Yudhie Suchyadi
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Sekolah Pascasarjana - Universitas Pakuan Jl. Pakuan No.I, RT.02/RW.06, Tegallega, Kecamatan Bogor Tengah, Kota Bogor, Jawa Barat 16129 Indonesia
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INDONESIA
Indonesian Journal of Applied Environmental Studies
Published by Universitas Pakuan
ISSN : 27220133     EISSN : 27220141     DOI : https://doi.org/10.33751/injast
Core Subject :
The Indonesian Journal of Applied Environmental Studies InJAST, P-ISSN 2722-0133, E-ISSN 2722-0141 is a peer-reviewed, open-access scientific journal published biannually in April and October. The journal focuses on fundamental and applied environmental sciences, covering environmental chemistry, biology, ecology, geoscience, environmental physics, atmospheric, terrestrial, and aquatic pollution, pollution control technologies, natural resource conservation, environmental health, toxicology, environmental quality assessment, and environmental standards. InJAST publishes original theoretical and experimental research articles, applied studies, and technical reviews that contribute to environmental sustainability and responsible natural resource management. Since Volume 3, Number 1, InJAST has been jointly published by the Graduate School of Environmental Management, Universitas Pakuan, Bogor, Indonesia, and the Indonesian Association of Environmentalist Scholars - PERWAKU, with support from the Belantara Foundation. InJAST is accredited SINTA 3 based on Decree.
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Articles 28 Documents
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Optimizing the performance of the “Working Group of Cibodas Biosphere Reserve Management Coordination and Communication” (Pokja KKP CBC) to achieve Sustainable Development Goals Ika Rosmalasari
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 1 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injastunpak.v7i1.53

Abstract

This paper analyzes the suboptimal role of the Working Group of Cibodas Biosphere Reserve Management Coordination and Communication, also known in Bahasa as Kelompok Kerja Koordinasi dan Komunikasi Pengelolaan Cagar Biosfer Cibodas (POKJA KKP CBC) in supporting sustainable development in Cianjur Regency. Problem identification was conducted using the CGI (Controversy, Gap, Inconsistency) approach, revealing issues such as a non-transparent working group formation mechanism, disharmonious stakeholder relationships, and an unclear division of roles. The USG (Urgency, Seriousness, Growth) analysis revealed nine problems stemming from the three identified issues, with the highest priority being the lack of transparency in the working group formation (score 25). The root causes include insufficient socialization, the absence of clear documentation, and the formation process being merely an administrative formality. Consequently, this led to a dysfunctional organization, weak institutional capacity, and obstacles to achieving sustainable development goals. The most appropriate policy recommendation to address the lack of transparency in the working group formation mechanism is the formulation and establishment of formation guidelines, formalized through an official Regional Head Regulation or Regent Regulation. The existence of these guidelines is expected to optimize the roles, functions, and performance of the POKJA KKP CBC. Binding regulations will ensure that this policy serves not only as a moral commitment but also possesses legal force to guarantee transparency, compliance, and consistency of implementation across all working groups formed within Cianjur Regency.
Integrating slow food knowledge and traditional food practices into educational curricula: Implications to social environment conservation Fazal Manan; Dolly Priatna; Shujaul Mulk Khan; Shakil Ahmad Zeb; Abdullah; Hamid Masood; Imran Ali; Gulnar Kairzhanovna Tulindinova; Bibi Gul Zhumabekova; Syahik Nurbani
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 1 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injastunpak.v7i1.58

Abstract

Slow Food is increasingly recognized as essential for human health and quality of life because it promotes the consumption of fresh, natural, organic, and locally produced foods that are free from synthetic inputs and richer in nutritional value. Beyond health benefits, the Slow Food movement also contributes to environmental conservation by reducing carbon emissions, supporting sustainable agriculture, and preserving local food systems. This study employed a qualitative integrative review methodology to examine how Slow Food knowledge and traditional culinary practices can be integrated into educational curricula. The research framework consisted of three main phases: systematic literature selection, thematic analysis, and synthesis of findings. This study is distinctive in its integrative approach, which connects Slow Food principles, traditional food practices, and curriculum development. The findings highlight the role of both formal and informal education as transformative platforms for promoting sustainable agricultural systems, preserving cultural heritage, and fostering social and environmental responsibility. Education supports the production of slow, clean, and organic food by increasing awareness and encouraging sustainable food growing practices. Through education, students gain knowledge and practical skills to cultivate vegetables and develop school or community gardens. Educational institutions act as key agents in knowledge development, advocacy, research, and the promotion of sustainable Slow Food practices. They contribute through curriculum integration, schoolyard gardening initiatives, community engagement, and policy advocacy. Higher education institutions, particularly universities, can embed Slow Food education into multidisciplinary curricula, equipping students to address contemporary food system challenges, promote global citizenship, and participate in slow, clean, and fair food.
Integrated STORET–System Dynamics Approach for Pollution Control and Assimilation Capacity Management in a Small Urban Lake: A Case Study of Situ Tlajung Hilir, Bogor Regency, Indonesia Syamsul; Rosadi Rosadi; Sata Yoshida Srie Rahayu
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 1 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injast.v7i1.59

Abstract

Small urban lakes are increasingly threatened by domestic and industrial wastewater inputs that exceed their natural assimilation capacity. This study aimed to evaluate the water quality status and develop a dynamic pollution control model for Situ Tlajung Hilir, Bogor Regency, Indonesia. Water quality was assessed using the STORET method based on Government Regulation No. 22/2021 standards, while pollution dynamics were simulated using a system dynamics model consisting of population growth, domestic load, industrial load, and assimilation capacity submodels. Historical monitoring data (2019–2023) were used for calibration and behavioral validation through trend comparison. The lake was classified as heavily polluted, with BOD, Total Nitrogen, and Total Phosphate exceeding permissible limits and surpassing assimilation capacity. Simulation of management scenarios (2020–2035) showed that business-as-usual conditions lead to continuous degradation, whereas integrated domestic and industrial wastewater treatment can reduce pollutant loads by 60–80% and gradually approach ecological balance. The proposed integrated STORET–system dynamics framework provides a practical decision-support tool for sustainable lake restoration and urban water resource management.
Evidence synthesis for environmental decision making: why “summary” is not the same as “synthesis” Kathryn A. Monk
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 1 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injast.v7i1.60

Abstract

Environmental science has never been more productive. Every month we see new studies on forests, fisheries, pollution, climate hazards, restoration, protected areas, and community-based management. In Indonesia and across Southeast Asia, where environmental decisions often must be made quickly amid rapid development pressure and climate risk, the idea of “evidence-informed decision making” is widely supported. But what kind of evidence are we actually using to inform these decisions? Many evidence sources look similar. They cite research. They summarise findings. They offer recommendations. Sometimes they carry authoritative branding or are published in high-impact journals. But they do not all do the same job. If we treat them as interchangeable, we risk using evidence in ways that create overconfidence, selective learning, and weak foundations for policy and practice.
Analysis of water-regulating ecosystem services in the Upper Ciliwung Watershed from 2015 to 2025 based on vegetation index, morphometric characteristics, and soil properties Miesriany Hidiya; Boedi Tjahjono; Dolly Priatna
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 2 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injast.v7i2.73

Abstract

The Upper Ciliwung Watershed plays an important role in regulating the hydrological system of downstream areas, particularly Jakarta, which is highly prone to flooding. Population growth within the Greater Jakarta metropolitan area and land conversion in the Puncak region have reduced the watershed’s capacity to provide water-regulating ecosystem services. This study aims to (1) assess and map water-regulating ecosystem services in the Upper Ciliwung Watershed in 2015 and 2025 and (2) evaluate their dynamics and formulate management recommendations for flood mitigation. The assessment was conducted using a Multi-Criteria Evaluation (MCE) method based on four parameters: slope, Topographic Wetness Index (TWI), Normalized Difference Vegetation Index (NDVI), and soil depth. The study used 30 m resolution SRTM data, Landsat 8/9 imagery acquired in 2015 and 2025, and a 1:50,000-scale soil map produced by the Indonesian Center for Agricultural Land Resources Research and Development. Spatial analysis was performed using ArcGIS Desktop 10.8, while the reclassified values were categorized using the Natural Breaks method. The results indicate that water-regulating ecosystem services in the Upper Ciliwung Watershed degraded over the ten-year period. The area classified as low increased from 12,493.90 ha (81.94%) in 2015 to 13,630.20 ha (89.39%) in 2025, while the moderate class decreased from 2,644.38 ha to 1,598.94 ha, and the high class declined from 109.17 ha to 18.31 ha. This degradation indicates a decline in the watershed’s capacity to retain and infiltrate rainfall, thereby increasing flood risk in downstream areas. The recommended management measures include revegetation of open areas, implementation of agroforestry practices on agricultural land, stricter spatial planning controls in settlement areas of the Puncak region, and strengthened interjurisdictional coordination based on the one river, one plan approach.
Assessing the potential of smallholder teak for resilient tropical forest landscapes Hwan-Ok Ma; Dolly Priatna; Yongyut Trisurat; Tetra Yanuariadi; P. K. Thulasidas; Thaung Naing Oo
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 2 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injast.v7i2.87

Abstract

Teak (Tectona grandis) is one of the world’s most valuable tropical hardwoods, with sustained demand for furniture, construction and high-value wood products. Global planted teak is estimated at about 4.85 million ha, concentrated mainly in Asia but also established across Latin America and Africa. Smallholders manage approximately one quarter of the world’s planted teak—around 1.2 million ha—and ownership is becoming increasingly private and decentralized. Their significance is particularly visible where teak is grown on farms and outside state forests. In Java, for example, many farm households integrate teak into mixed tree-based agroforestry systems supplying domestic wood industries. Such systems can make a substantial contribution to rural livelihoods; in the Indonesian cases examined by some experts, agricultural and timber crops together accounted for approximately 40% of household income. In Myanmar, home to the world’s largest natural teak forests, degradation of natural teak resources has reinforced the importance of well-managed plantations, including stronger support for private teak growers. Smallholders should therefore be viewed as a structural component of the teak economy. Smallholder teak differs fundamentally from large-scale industrial plantation forestry. Trees are often integrated with crops and other species, retained as household assets, and harvested selectively when cash is needed for education, housing, health care or other major expenditures. Teak can therefore function simultaneously as timber, savings, and risk management. Research in Indonesia and Lao PDR shows that smallholder tree growing responds not only to biological productivity but also to tenure security, market demand, regulation, finance and practical silvicultural support. This perspective shifts the question from how to expand teak plantations to how to realize the potential of smallholder teak within resilient tropical forest landscapes. That potential should be assessed through three linked dimensions: economic viability for households, social and institutional viability for producer participation, and environmental viability at farm and landscape scales. The central proposition of this editorial is that environmental benefits are more likely to endure when smallholders can obtain reasonable returns, manage production risks and participate fairly in accessible markets. The analysis draws primarily on the Global Teak Resources and Market Assessment 2022, established research on smallholder teak in Indonesia and Lao PDR, and recent implementation experience from the ITTO–BMLEH Teak Project. The Proceedings of the 5th World Teak Conference (WTC), held in Kochi, Kerala, India, on 17–20 September 2025, are used selectively to reflect recent developments in teak investment, markets, genetics, management and landscape resilience.
Impact of the designation of Ciletuh-Palabuhanratu UNESCO Global Geopark (CPUGGp) on space utilisation in Ciemas District, Sukabumi Regency, Indonesia Saepul Amri; Santun R. P. Sitorus; Teti Syahrulyati
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 2 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injast.v7i2.17

Abstract

The designation of Ciemas District as part of the Ciletuh-Palabuhanratu UNESCO Global Geopark (CPUGGp) has had an impact on land-use changes. Ciemas District has become a new growth center that attracts and increases the number of visitors. Therefore, land-use must be in harmony with spatial patterns and provide protection for its primary function as a conservation area. The objectives of this research are: 1) To analyze land-use changes in Ciemas District after the designation of the CPUGGp; 2) To predict land-use changes until the year 2043; 3) To analyze the suitability of land-use with the Regional Spatial Plan (RTRW) of Sukabumi Regency for the years 2023–2043 in Ciemas District; and 4) To formulate directions for improving the Spatial Pattern of the RTRW of Sukabumi Regency. The data analysis techniques consist of land-use change analysis using GIS overlay and land-use prediction using CA-Markov. The results of the land-use/land cover change analysis for the 2015–2019 period show that an area of 23,912.16 Ha (75%) remained unchanged, while an area of 8,006.54 Ha (25%) changed. The land-use/land cover change for the 2019 to 2023 period shows that an area of 30,893.63 Ha (97%) remained unchanged, and an area of 1,025.52 Ha (3%) changed. The land-use prediction for the year 2043 is dominated by Open Land and Plantations. Residential areas and Activity Centers continue to increase, while Forested Areas continue to decrease. The alignment of land-use with the RTRW Spatial Plan shows results of 77.14% consistent, 4.86% transitional, and 11.85% inconsistent. The directions for improving the RTRW Spatial Plan are to continue appropriate land-use/land cover, direct transitions to align with the RTRW Spatial Plan, and address inconsistencies, particularly in existing Settlements and Activity Areas (Tourism and Industry), to be accommodated in the upcoming revision process of the Sukabumi Regency RTRW Spatial Plan.
Evaluating the Environmentally Friendly Village (KRL) program for household waste reduction through a gender-responsive approach: Evidence from Bogor Regency, Indonesia Armi Susilowati; Rita Retnowati; Yossa Istiadi
Indonesian Journal of Applied Environmental Studies Vol. 7 No. 2 (2026): Indonesian Journal of Applied Environmental Studies
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/injast.v7i2.69

Abstract

The increasing generation of household waste and climate change pose significant challenges to sustainable environmental development. In response, the Bogor Regency Government established the Environmentally Friendly Village Program (Kampung Ramah Lingkungan/KRL) to promote community-based environmental management through a gender-responsive approach. This study evaluated KRL implementation and perceived household waste reduction in Bojonggede and Kedung Waringin Villages, Bogor Regency, using the Context, Input, Process, Product (CIPP) model integrated with a gender analysis framework based on Access, Participation, Control, and Benefit (APKM). A descriptive-evaluative qualitative approach was employed, with data collected through in-depth interviews, field observations, document analysis, and perception-based instruments. Data were analyzed using the Miles, Huberman, and Saldaña interactive model. Bojonggede demonstrated stronger implementation performance across CIPP components, with descriptive scores ranging from 2.50 to 3.00, compared with 1.75 to 2.33 in Kedung Waringin. These differences were associated with local governance, institutional capacity, community participation, resource availability, and continuity of program facilitation. Gender analysis revealed that women played substantial roles in waste banks, composting, community greening, and recycling, although access, participation, control, and benefits varied between villages. Respondents reported higher perceived household waste reduction in Bojonggede (approximately 55%) than in Kedung Waringin (31%). These estimates reflect respondents’ perceptions rather than objectively measured changes in waste generation or disposal. The findings suggest that integrating CIPP and APKM provides a useful framework for descriptively evaluating program implementation and gender responsiveness in community-based environmental initiatives.

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