Research & reports

Mutia Devi Hidayati, Arief Rahmatulloh, Luchis Rubianto, Pritantina Yuni Lestari · Jurnal Abadimas Adi Buana · Indonesia

In the Mulyorejo sub-district of Sukun district, Malang, Indonesia (area 2.75 km²), residents actively use vacant land and underused resources under an urban farming concept, including cultivating butterfly pea flowers, though product diversification of the flowers into higher-value goods had not been thoroughly developed. This community service project delivered skills training in making batik using butterfly pea flowers as a natural dye — a technique noted for producing soft colors, commanding a high market value, and being environmentally friendly, aligned with the "clean water and sanitation" Sustainable Development Goal — and introduced ways of combining different natural dyes for color variation. Held on October 7, 2023 with 8 participants, the post-training questionnaire yielded a mean of 3.88 and a mode of 4.0 across questions, indicating participants understood, felt the benefits of, and were satisfied with the training; participants also received an electric canting (batik drawing tool) for independent production.

Matthijs T. Wessels, Lisa‐Marie Hemerijckx · Development Southern Africa · Sub-Saharan Africa

More than 700 surveys with food vendors and consumers, combined with ethnographic research with farmers, quantified and mapped the contribution of urban and peri-urban producers to fresh leafy vegetable supply in the growing city of Dar es Salaam, Tanzania. Seventy percent of all amaranth consumed in the city was found to be produced within it, with an average farm-to-fork distance of 11 km, indicating a strongly localised foodshed for leafy vegetables. The results point to the ongoing significance of urban areas in meeting their own food demand and the need to explicitly integrate food provisioning into the planning of growing African cities.

Górna, Ada · · Global

A book examines the position of urban agriculture within the spatial and functional structure of cities in the Global South through case studies of three cities: Havana, Singapore and Kigali. Drawing on fieldwork conducted in each city, it documents the diverse characteristics of urban agriculture across differing socio-economic, spatial, political and environmental conditions and identifies constraints on its development.

Zwelakhe Thulasizwe Mascot Maseko · Journal of Asian and African Studies · South Africa

In Esikhaleni Township, South Africa, structured interviews with local farmers and in-depth interviews with officials from uMhlathuze Municipality examined why residents use urban open spaces for subsistence agriculture and how it affects their livelihoods. Food insecurity, demand for accessible fresh produce, interest in farming, and rising food costs were identified as the main drivers, and open-space agriculture was found to contribute to livelihoods through improved access to fresh food, reduced food expenditure and supplementary income from produce sales, leading to a recommendation that urban planning set aside land for agriculture.

Charlie M. Shackleton, Peta Brom, Nanamhla Gwedla, Abraham R. Matamanda, Mallika Sardeshpande, Sopna Kumar-Nair · Cities · South Africa

Using South Africa as a case example, the study scored six types of urban green infrastructure (UGI) — amenity spaces, blue infrastructure, natural/semi-natural lands, urban parks, urban agriculture and verges — against five dimensions of poverty alleviation: cash or non-cash income, skills development and learning, physical and mental health, reduced vulnerability and risk, and participation in decision-making, rating current and future potential alongside the degree of change required. Urban agriculture was scored as having the highest current potential to contribute to poverty alleviation and verges the lowest, while parks and amenity spaces offered the greatest returns per effort and verges were identified as key sites for pro-poor intervention due to their wide distribution. Overall, the study concluded that greater investment and changes in the attitudes of authorities would have a bigger impact on poverty alleviation across all UGI types than changes to policy and procedure.

Chernet Assefa, Addisu Getahun, Endale Mekonnen · Middle East Research Journal of Economics and Management · Ethiopia

A participatory demonstration conducted in three districts of the Akaki Kaliti sub-city of Addis Ababa, Ethiopia, during the 2021/22 production year, in which a total of 61 farming households (47 male-headed, 14 female-headed) benefited, covering 14 hectares of bread wheat and 30 hectares of teff. The demonstrated technologies produced an average grain yield of 56.66 quintals/hectare for bread wheat and 22.16 quintals/hectare for teff, both higher than the national average. The study concludes that boosting agricultural production requires stakeholder attention to disseminating and adopting improved crop varieties with full production packages, using cluster farming to reduce poverty and ensure food security.

Catharina Any Sulistyowati, Suraya Afiff, Muhammad Baiquni, Mia Siscawati · Analisis Kebijakan Pertanian · Indonesia

This literature study, drawing on Scopus-indexed social science journal articles on community-supported agriculture (CSA) published between 1994 and 2022, examined CSA's potential to address problems facing small farmers in Indonesia, including low income, low productivity, crop failure, price fluctuation, infertile land and debt bondage. It identifies financing the transition from chemical to sustainable agriculture, access to land, farmers' quality of life and farmers' capacity as key elements on the production side, and consumer motivation and awareness, member contributions, member inclusiveness and member sustainability as key elements on the consumer-support side, concluding that supporting institutional development and policy is also essential.

Rosli Muhammad NAIM, Maisarah Abdul MUTALIB, Aida Soraya SHAMSUDDIN, Mohd Nizam LANI, Indang Ariati ARIFFIN, Shirley Gee Hoon TANG · Frontiers of Agricultural Science and Engineering · Global

A review article on sustainable agriculture and food systems characterizes sustainable agriculture as farming practices that meet immediate needs while preserving future generations' capacity to meet theirs, with sustained productivity, pollution reduction, and economic viability as primary aims. Drawing on existing research, it reports benefits including climate resilience, reduced greenhouse gas emissions, improved water quality, enhanced biodiversity, improved soil fertility, and stronger rural livelihoods, alongside challenges such as substantial transition costs, conflicting policy objectives, and the persistence of conventional methods. The review identifies strategies including agroforestry, agroecology, urban agriculture, farmer knowledge exchange, ecosystem-service payments, and shorter supply chains as ways to accelerate progress, contingent on appropriate policy and incentive support.

Setyardi Pratika Mulya, Delik Hudalah · Regional Sustainability · Indonesia

This study assessed sustainability based on agricultural intensity in peri-urban villages of Karawang Regency, Indonesia, using a village agriculture index (VAI), a village sustainability index (VSI) adapted from a local sustainability index via factor analysis, and a logical matrix analysis for level of agricultural sustainability (LoAS). Peri-urban villages with high agricultural intensity tended to show lower social welfare and economic development and higher disaster risk; high agricultural intensity did not necessarily ensure prosperity, and economic disparity existed among villages, leading the study to conclude that encouraging diversity in agricultural intensity is more important than promoting agricultural intensity itself.

Natasha Putri Adetya, Maulin Masyito Putri · Sustainability and Social Impact · Indonesia

Addressing the high temperatures characteristic of urban planting conditions in Gresik Regency, Indonesia, this paper proposes optimizing post-harvest sales and storage systems for urban farming products through three measures: planting and harvest scheduling by crop type and duration, cold storage to slow quality degradation and extend shelf life, and a sales and distribution application. It identifies as a problem that most current sales of urban farming products depend on direct sales to the surrounding community and are considered ineffective, and proposes that these three measures would let farmers reach customers beyond Gresik.

Raditya Ahmad Rifandi, Rizal Ichsan Syah Putra, Nunung Eni Elawati, Dwi Nur Yuliyani, Dafa Anwarul Fahmi · Cakrawala Jurnal Pengabdian Masyarakat Global · Indonesia

A community outreach project implemented a "smart aeroponic" system — using sensor technology and automatic control — at several urban locations in Indonesia and trained local communities in its operation and maintenance. Evaluation found the system increased energy efficiency by up to 70% compared with Deep Flow Technique (DFT) hydroponics, saving 29.02 kWh for mustard greens cultivation and 41.00 kWh for lettuce cultivation.

B. Hari Saptaning Tyas, Condrodewi Puspitasari, Fadjarini Sulistyowati, Widati Widati · JMM - Jurnal Masyarakat Merdeka · Indonesia

A community outreach activity in RT 13 and RT 14 of Kampung Surokarsan, along the Code River in Yogyakarta, Indonesia, facilitated the launch of an urban-farming-based culinary tourism village. Building on a pre-masterplan drafted in 2023 activities, the project socialized the plan, facilitated village deliberation to formulate an action plan, and conducted capacity-building training for residents. Participants included a tourism awareness group, village officials, RT 13/14 leaders, local farmer groups, and resident representatives; questionnaire responses indicated participants found the training beneficial and expressed intent to develop the culinary village concept together with nearby water tourism, and a WhatsApp group was formed for ongoing communication.

Composting Consortium (Closed Loop Partners) · Closed Loop Partners · United States

The largest field test of its kind in North America — 18 months, 10 facilities, over 23,000 units — found that certified compostable packaging breaks down in properly managed compost facilities. Compostable plastics averaged 98% degradation by surface area and fiber packaging averaged 83%, both exceeding industry thresholds (90% and 80% respectively). The market is projected to grow 16% annually.

Cascadia Consulting Group · Washington State Department of Ecology · United States

A report to the Washington State legislature summarizing an advisory committee's research on standards for managing compostable products at composting facilities. Compostable products make up only 0.4% by weight of material sent to commercial compost facilities in the state, yet the associated contamination disproportionately raises processing costs, and consumer confusion is identified as a major driver of misdisposal.

· BioCycle · United States

A report on EREF's 2023 survey of U.S. landfill tipping fees. The national unweighted average fell to $56.80/ton, a 3% decrease from the prior year and the first decline since 2020, with fees dropping in most regions except the Northeast.

農林水産省 · 農林水産省 · Japan

According to Japan's Ministry of Agriculture, Forestry and Fisheries, farmland is classified into general farmland and urbanization-area farmland for fixed-asset tax purposes. General farmland is valued by comparable sale prices and taxed as farmland; urbanization-area farmland is generally valued at a rate comparable to residential land (minus development-cost equivalents), with 'general urbanization-area farmland' taxed similarly to farmland and 'designated urbanization-area farmland' taxed like residential land. Urbanization-area farmland (excluding productive green space) gets a one-third taxable-value reduction, and a burden-adjustment mechanism applies adjustment rates of 1.025, 1.05, 1.075, or 1.1 depending on whether the prior year's burden ratio was 0.9+, 0.8–0.9, 0.7–0.8, or below 0.7.

Internal Revenue Service (IRS), Department of the Treasury · Federal Register · United States

On 8 October 2024 the IRS and Treasury issued final regulations (TD 10007, RIN 1545-BQ39) identifying certain syndicated conservation easement transactions and substantially similar transactions as listed transactions, a type of reportable transaction. Material advisors and certain participants must file disclosures with the IRS and face penalties for failing to do so. Public comments on the proposed rule extensively discussed the so-called '2.5 times rule' — a multiple-of-investment threshold used to flag transactions.

Willowsford Conservancy · Willowsford Conservancy · United States

This 2024 FAQ from Willowsford Conservancy, the nonprofit tied to the Willowsford residential development in Virginia, explains that it operates independently from the developer and manages about 2,300 acres of open space (including 200+ acres of farmland and 2,000+ acres of grassland, wetland, and forest) plus 40+ miles of trails, funded in part by a 0.25% transfer fee paid by homebuyers. Its seven-seat board currently has six resident members, and the resident-led board structure began in 2021.

· The Dirt · United States

Published July 31, 2024 by local outlet The Dirt, this article reports that Spork Food Hub announced the immediate closure of its farmstand at The Cannery agrihood in Davis, California. In a Facebook post, the operator said that after two years of operation it had been unable to grow its customer base enough to make the stand profitable, and would instead focus its community outreach on other farm and food-hub events.

農林水産省 · 農林水産省 · Japan

This MAFF document chronicles the institutional history of urban farmland policy in Japan. The 1968 City Planning Act (Showa 43) defined 'urbanization promotion areas' (shigaika kuiki) as areas that should be urbanized preferentially and systematically within roughly 10 years. In 1970 an Agricultural Land Act revision changed farmland conversion in these areas from a permit system to a notification system, and in 1972 fixed asset tax began being assessed at residential-land rates on farmland there. The 1974 Productive Green Space Act (Seisan Ryokuchi Ho) exempted farmland designated as productive green space from that residential-rate taxation, and a 1975 inheritance-tax deferral system (with a 20-year deferral period) was created. In 1991, the tax deferral for the three major metropolitan areas' designated cities was narrowed to apply only to productive green space.

USDA Economic Research Service (ERS) · USDA Economic Research Service · United States

A USDA Economic Research Service 'Chart of Note' based on the 2022 Census of Agriculture. 39% of the 880 million acres of U.S. farmland was rented or leased in 2022, a rate similar to 2017. Rental activity is concentrated in grain-producing regions such as the Mississippi River corridor, Corn Belt, and Northern Plains, with roughly two-thirds (68%) of rented farmland on operations of 2,000 acres or more.

国土交通省 · 国土交通省 · Japan

MLIT's national survey of rooftop and wall greening construction results for FY2023 found about 15.7 hectares of new rooftop greening (roughly three Tokyo Domes) and 5.0 hectares of new wall greening that year, bringing the cumulative totals since FY2000 to about 615 hectares of rooftop greening and 125 hectares of wall greening. The survey was mailed to 560 companies nationwide with 284 responses (a 50.7% response rate).

Pei-Yuan Chen, Chuan-Ching Pang, Guan-Yi Sung · Heliyon · Global

This study analyzes how evapotranspiration and substrate moisture variations affect indoor temperature reduction from a green roof, developing two multiple linear regression models: an operation-stage model based on field observations and an integrated planning-stage model combining hydrological and building energy simulations. The operation model achieved RMSE 0.64C and adjusted R2 0.55, the planning model RMSE 1.02C and adjusted R2 0.80, with maximum summer indoor temperature reduction reaching 10.65C and an average of 5-6C.

· Wikipedia · Singapore

According to the English Wikipedia article 'Vertical farming', Sky Greens Farms opened the world's first commercial vertical farm in Singapore in 2012. It is three stories high and currently has over 100 nine-metre-tall towers. It is cited as the starting point of commercialized urban vertical farming.

TechCrunch · TechCrunch · United States

TechCrunch reported that vertical farming company Bowery Farming ceased operations on November 4, 2024. The company had raised more than $700 million and was valued at over $2 billion in its 2021 funding round, but had gone through multiple rounds of layoffs in 2023. The article places this alongside the bankruptcies of AeroFarms and AppHarvest as evidence of a broader downturn in the vertical farming sector.