Climate resilient agriculture

Preferences for ecosystem payment programs in Papua New Guinea

We evaluate forest landholders’ preferences to enter a hypothetical Payment for Ecosystem Service (PES) contract (i.e., voluntary carbon credit contract) and assess the relative importance of different program attributes that influence forest landholder preference for such contracts.
When evaluating the attractiveness of PES contracts for forest landholders, analysis suggests that on average, forest landholders are not inclined to enter a PES contract. However, when evaluating differences among households, a variety of characteristics shape the willingness to accept a PES contract, including:
 Landholders that are aware of climate change impacts and those from communities that previously participated in forest protection programs are more likely to accept a PES contract.
 Households that use forested land for commercial logging or hunting grounds are more inclined to accept a PES contract, viewing these contracts as an opportunity to protect forest goods and services.
 Households that rely on forested land for timber harvesting for personal building purposes are less likely to join a PES program, viewing contracts as restrictive to personal land use needs.
When assessing different levels of contract attributes (e.g., payment amount, forest area requirement, and contract length), analysis suggests that forest landholders are more likely to accept a contract that:
 Offers higher financial incentives
 Requires half of their forested land to be under contract (compared to all of their forested land).
On average, forest landholders require an additional annual compensation of $39.07 USD (152 PGK) per hectare to accept PES contracts that require full forested land preservation compared to preserving half of their forested land.

Climate change and the impact on taro in Papua New Guinea

In this paper we present a brief summary of recent historical climate of Papua New Guinea (PNG), finding that rainfall has been increasing greatly compared to pre-1995 levels, but that temperature has only been rising at a moderate rate. We then examine the 5 climate models used in this study from the Inter-governmental Panel on Climate Change (IPCC) / ISIMIP / CMIP3b, discovering one – IPSL – which best reflects the climate trends noted in PNG since 1995. The climate model projections show that temperature changes in PNG are expected to be less than most other places in the world and precipitation changes in PNG are projected to be higher than most other places in the world. Despite noting that IPSL seems to best represent climate changes observed thus far, we use all 5 climate models in the DSSAT crop model for taro, investigating how each climate model will lead to changes in taro yields at each half-degree pixel. In the aggregate, we find that the IPSL model leads to the greatest projected reduction in taro yield at -6.4% for the nation, with Southern region projected to have greater than 10% yield reduction for taro. Across the 5 climate models, the median across model results suggest only a 1.6% yield reduction, while the most optimistic model projects a 4.4% gain. Because of uncertainty across climate models and different impacts across regions, as well as potentially increasing climate variability which would lead to more extreme events including droughts and floods, we recommend developing a suite of options to help farmers navigate future climate uncertainty. For example, developing and testing crop varieties that would offer better yields whether the future is wetter or drier, as well as varieties that are less sensitive to temperature extremes. These could include new varieties of taro but might also include alternative crops and farming techniques designed to protect the plants during ad-verse climate events.

‘Gold runs through these trees’: Preferences for ecosystems payment programs in Papua New Guinea

This item is currently unavailable due to an in-process journal submission.

Payment for Ecosystem Services (PES) programs (such as REDD+ and voluntary carbon credit programs) have been designed to provide improved forest governance, reduced carbon emissions and diversified income sources for forest communities. However, recent evaluations of REDD+ projects across diverse countries have shown mixed results. In 2022, the government of Papua New Guinea put a moratorium on voluntary carbon credit programs due to inadequately specified processes on contract design and targeting, resulting in ongoing deforestation and lack of transparent remuneration in participating communities under select programs. As the country reassesses how to engage in voluntary carbon credit programs, this study aims to inform the design of PES programs tailored to meet the needs of forest landholders. Using recently collected rural household survey data, we evaluate the unique characteristics that are correlated with forest-owning households’ likelihood of accepting a PES contract. The discrete choice experiments included in the survey, and complementary focus group discussions suggest that forest landholders prefer PES contracts with higher financial incentives and lower land area commitments, requiring an additional $39.07 per hectare per year to preserve all forested land compared to committing half of their forested land to a PES contract. Other factors, such as household size, the use of forest land for timber production and commercial logging, ongoing forest preservation activities within a community and market access also influence respondents’ preferences for PES contracts.

Papua New Guinea Agriculture, Food and Nutrition Policy Support Program

In Papua New Guinea (PNG), more than 80 percent of the population depends on agriculture for their livelihoods, with a vast majority working as smallholder farmers. Recognizing the need to revitalize and transform its agriculture sector, PNG’s government has set ambitious growth targets for agricultural exports and domestic agricultural production. It considers strategic investment in agricultural research and food security fundamental to overall economic growth and structural transformation.

The Papua New Guinea Agriculture, Food and Nutrition Policy Support Program (PNG-AFNP), supported by the Australian Department of Foreign Affairs and Trade (DFAT) through the Australian High Commission (AHC) in Port Moresby, and the Australian Centre for International Agricultural Research (ACIAR), will support PNG’s forward-looking strategy for economic growth and transformation through data-driven policy analysis, capability development, and strategic partnerships to inform policy dialogue and investment opportunities.