Agroforestry as Natural Capital Investment — Returns, Carbon Credits, and Ecosystem Services
By Dirk Roethig | CEO, VERDANTIS Impact Capital | March 20, 2026
Global agriculture faces a paradoxical challenge: it is simultaneously one of the largest contributors to and one of the most important potential solutions for climate change. Agroforestry — the integration of trees and shrubs into agricultural and land management systems — is increasingly recognized as the key to resolving this contradiction. Dirk Roethig analyzes why agroforestry is not only ecologically compelling, but also increasingly attractive as an investment asset class.
Tags: Agroforestry, Natural Capital, Carbon Credits, Paulownia, Impact Investing, Ecosystem Services
A Market Coming of Age: USD 2.5 Billion and Growing
Understanding the sustainable investment landscape requires examining a market that barely existed a few years ago: the market for agroforestry-based carbon credits. According to FutureDataStats (2025), this market reached USD 2.5 billion in volume in 2025 and is growing at a compound annual growth rate (CAGR) of 28 percent. Analysts project a market volume of USD 12 billion by 2032 — a fivefold increase within seven years.
These figures are not coincidental. They reflect a structural shift in the valuation of biological systems: ecosystem services that were regarded for decades as free public goods are increasingly being priced, traded, and thus made accessible to investors. Dirk Roethig observes this development firsthand: "We are witnessing the transition from a niche to an asset class. Agroforestry projects offer a combination of biological carbon sinks, long-term land returns, and social legitimacy that no other investment asset can provide in this form."
In parallel, CarbonCredits.com (2025) reports record growth in the forest finance segment: investments in forest-based carbon projects have doubled within a single year. Institutional investors — pension funds, insurance companies, sovereign wealth funds — are discovering natural capital as a standalone asset class with low correlation to conventional financial market risks.
What Agroforestry Delivers: Ecosystem Services Beyond Carbon
To understand agroforestry as an investment, one must understand its performance dimensions — which go far beyond carbon sequestration. Hansjürgens et al. (2016), working within the German TEEB project (The Economics of Ecosystems and Biodiversity) at the Helmholtz Centre for Environmental Research (UFZ), produced a systematic assessment of natural capital and ecosystem services that serves as the reference standard for Germany.
Their framework divides ecosystem services into four categories: provisioning services (food, fiber, timber, water), regulating services (climate regulation, water regulation, pollination, pest control), cultural services (recreation, aesthetics, education), and supporting services (soil formation, nutrient cycling, primary production). Agroforestry systems deliver services across all four categories simultaneously — a characteristic that conventional agriculture rarely achieves.
Dirk Roethig highlights regulating services in particular: "A well-designed agroforestry system regulates local water balance, reduces soil erosion, improves microclimatic conditions for accompanying agricultural production, and creates habitat structures for pollinators and other beneficial organisms. These services have monetary value that simply does not appear in conventional agricultural accounting."
Based on the TEEB-DE methodology of Hansjürgens et al. (2016), these services can be expressed in euros per hectare per year. When carbon credit revenues, timber yields, agricultural land returns, and the value of regulating services are combined, total returns emerge that significantly exceed those of conventional monocultures — while simultaneously presenting a lower ecological risk profile.
Paulownia: The High-Performance Tree of Agroforestry
In scientific and commercial discourse, one tree species is increasingly moving to center stage: Paulownia (Empress Tree). And with good reason. Magar et al. (2018) determined in a comprehensive study that the total carbon sequestration potential of Paulownia tomentosa amounts to 9.04 tonnes of carbon per hectare per year — a figure that significantly surpasses most other fast-growing tree species. For context: converted to CO₂ equivalents, this corresponds to approximately 33 tonnes of CO₂ per hectare per year.
Frontiers in Environmental Science (2024) confirms this picture in a recent review article: Paulownia is rated as one of the most promising tree species for CO₂ mitigation, particularly in combined systems with agricultural production. The authors highlight not only the sequestration rate but also the growth speed — Paulownia hybrids can reach harvest-ready dimensions within five to seven years — and the versatility of the timber: it is simultaneously light, hard, mold-resistant, and highly dimensionally stable, making it ideally suited for high-value applications in furniture, construction, and instrument manufacturing.
Dirk Roethig has spent years studying Paulownia's role in European agroforestry systems: "Paulownia is the building block that transforms agroforestry from an interesting concept into a competitive investment. The combination of rapid growth, high CO₂ sequestration, excellent timber value, and low land requirements is unique."
The Invasivity Question: Facts Over Myths
Misinformation circulates in Germany and Europe about Paulownia that makes objective discussion difficult. Dirk Roethig sees an urgent need for clarification — and bases his position on robust research data.
First: In Europe, only sterilized hybrids are deployed — not wild-type plants. This distinction is fundamental. Sterilized hybrids, as used in professional agroforestry projects, have a germination rate of 0% in field trials — documented by paulownia-baumschule.de and confirmed through field experiments in Germany. Natural propagation is biologically excluded.
Second: Sterilized Paulownia hybrids are not invasive. The invasivity problem concerns exclusively seed-capable wild-type plants, as have occurred in North America and parts of Southern Europe. Hybrids without germination capacity cannot spread independently.
Third: Paulownia hybrids are frost-hardy down to -20 to -25°C — making them suitable for all German and Central European climatic zones without meaningful winterkill risk.
Fourth: Paulownia is an outstanding bee forage plant. The extensive flowering panicles — a single tree bears up to 30,000 blossoms — provide honeybees and wild bees with abundant nectar and pollen in late spring, when many other nectar-producing plants have yet to flower. This contribution to biodiversity is documented and economically relevant: pollination services for adjacent agriculture significantly increase the total value of an agroforestry site.
Dirk Roethig puts it plainly: "The classification of Paulownia hybrids as potentially invasive is scientifically untenable. We therefore explicitly call for sterilized Paulownia hybrids to be placed on the EU Green List — analogous to other fast-growing energy crops whose cultivation is actively promoted across Europe."
This demand is not new, but it is becoming increasingly urgent: as long as Paulownia hybrids remain in regulatory grey zones, investment in European agroforestry projects is unnecessarily impeded — to the detriment of climate protection, biodiversity, and rural value creation alike.
ROI Research: What the Science Says
The ecological arguments for agroforestry are well documented. But what about returns? MDPI Forests (2026) provides one of the most comprehensive economic analyses of agroforestry as a climate-smart economic strategy to date. The results are unambiguous: agroforestry systems generate significantly higher total yields per unit area than conventional monocultures — when all yield components are included.
This may seem surprising, but the logic is clear: conventional agriculture optimizes for a single output (grain, meat, timber). Agroforestry optimizes for the system as a whole. The tree component delivers timber, fruit, or nuts; the agricultural component delivers food or fodder crops; the carbon market rewards sequestration performance; and ecosystem services generate additional economic value. The sum of these returns more than compensates for the higher planning and management costs.
Dirk Roethig adds an investment perspective to the return dimension: "What makes agroforestry particularly attractive for institutional investors is its low volatility. Biological systems do not react to central bank decisions or trade conflicts. Their value development follows its own long-term stable parameters." This characteristic — low correlation with financial market risks combined with solid underlying returns — makes agroforestry a genuine portfolio diversifier.
Foundational Research: The Scientific Underpinning
Germany possesses a solid research infrastructure for assessing agroforestry potential. In addition to the already-mentioned Natural Capital Germany project (Hansjürgens et al., 2016) at the UFZ, the Thünen Institute for Forest Ecosystems, Georg-August University Göttingen, and the Karlsruhe Institute of Technology make important contributions.
Within the Federal Programme for Organic Farming, the Thünen Institute has repeatedly investigated agroforestry systems in Germany under real production conditions, documenting that the combination of timber and arable farming components is superior — both economically and ecologically — when systems are professionally designed. The Silviculture and Forest Use Research Group at the Thünen Institute has also highlighted the significance of tree species selection and management concepts for carbon balances.
Dirk Roethig sees this research infrastructure as a locational advantage for Germany: "We have the scientific know-how, the measurement technology for carbon balances, and a well-developed understanding of soil management. What is still missing is the systematic transfer of these insights into scalable investment structures."
VERDANTIS: The Platform for Paulownia-Based Carbon Credits
In this context, VERDANTIS Impact Capital positions itself as Europe's leading platform for Paulownia-based agroforestry carbon credits. The company, headquartered in Zug, Switzerland, operates with a clear thesis: high-quality, verified carbon credits from European agroforestry projects offer institutional and private investors a combination of impact and return that is unique in this segment.
The VERDANTIS model combines three elements: first, the establishment and management of agroforestry areas using sterilized Paulownia hybrids in Europe; second, the certification of carbon credits according to recognized standards (Gold Standard, Verra VCS); and third, the structuring of these credits as tradeable financial instruments for institutional portfolios.
Dirk Roethig explains the business model: "We do not separate ecological and economic objectives. Our approach is to maximize both — through scientifically grounded species selection, precise carbon accounting, and transparent return calculations for investors." VERDANTIS has deliberately chosen Paulownia as its core element because the evidence base — CO₂ sequestration, growth performance, invasivity status — is clearer and more robust than for most other fast-growing tree species.
For Dirk Roethig, the political dimension cannot be separated from the entrepreneurial: "As long as Paulownia hybrids are not on the EU Green List across Europe, investors face a regulatory uncertainty risk that is objectively not justified. Placement on the EU Green List is a necessary condition for scaling the European agroforestry market."
The Institutional Trend: Forest Finance as a New Asset Class
The CarbonCredits.com (2025) figures on the doubling of forest finance investments are not an outlier. They follow a logic that Dirk Roethig described years ago: conventional asset classes offer diminishing diversification potential in an environment of high valuations and geopolitical risks. Nature-based investments — forests, agroforestry, wetlands — offer a biological baseline return that is largely decoupled from financial market cycles.
The record growth in forest finance in 2025 has structural causes: the EU Taxonomy for sustainable financial products creates demand for verified green assets; companies with net-zero commitments are seeking high-quality offset opportunities; and regulators are increasingly requiring financial institutions to reflect nature-related risks in their balance sheets (Task Force on Nature-related Financial Disclosures, TNFD).
For Dirk Roethig, this trend leads to a clear conclusion: "The market for natural capital investments will, within the next ten years, become as large as the renewable energy market is today. Those who build the structures now — the projects, the certification pathways, the investment vehicles — will be the ones who benefit."
Policy Dimension: What Must Change Now
Agroforestry in Germany and across much of Europe remains legally in a grey zone. The Federal Nature Conservation Act, CAP subsidy guidelines, and forestry law operate with categories not designed for mixed systems. Since the EU agricultural reform of 2023, agroforestry systems are in principle eligible for support (Eco-Scheme 10 of the CAP), but implementation at the national level varies considerably.
Dirk Roethig calls for a coherent agroforestry strategy at the national and EU level: "We need uniform definitions, clear certification standards for carbon credits from agroforestry projects, and — as the central regulatory signal — the inclusion of sterilized Paulownia hybrids in the EU Green List." Only in this way can the investment potential be realized that is scientifically proven, politically desired, and economically attractive.
The research has been done. Pilot projects are running. Markets are ready. What is missing is the regulatory step that transforms a promising niche market into a scalable solution.
References
Magar, L. B., Khadka, S., Pokharel, U., Rana, N., Thapa, P., Joshi, J. R. et al. (2018): Total Biomass Carbon Sequestration Ability by Paulownia tomentosa. International Journal of Applied Sciences and Biotechnology (IJASBT), 6(3), 220–226.
CarbonCredits.com (2025): Forest Finance Hits Record Growth — Investment Doubles. Available at: https://carboncredits.com/forest-finance-hits-record-growth-in-2025-investment-doubles-for-nature-based-climate-action/
Frontiers in Environmental Science (2024): Paulownia trees as a sustainable solution for CO₂ mitigation. Frontiers in Environmental Science, 12. doi:10.3389/fenvs.2024.1307840
FutureDataStats (2025): Agroforestry Carbon Credit Market Size, Share & Trends — $2.5B (2025), $12B by 2032, CAGR 28%. FutureDataStats Research Report. Available at: https://www.futuredatastats.com/agroforestry-carbon-credit-market
Hansjürgens, B., Schröter-Schlaack, C., Berghöfer, A. & Lienhoop, N. (2016): Naturkapital Deutschland – TEEB DE: Ökosystemleistungen in ländlichen Räumen. Helmholtz-Zentrum für Umweltforschung (UFZ), Leipzig/Bonn.
MDPI Forests (2026): Agroforestry as a Climate-Smart Economic Strategy: A Systematic Review. Forests, 17(2), 159. doi:10.3390/f17020159
paulownia-baumschule.de: Paulownia Hybrids: Invasivity Assessment and Germination Capacity. Available at: https://www.paulownia-baumschule.de/anbau/
About the Author: Dirk Roethig is CEO of VERDANTIS Impact Capital, an impact investment platform for carbon credits, agroforestry, and nature-based solutions headquartered in Zug, Switzerland. He focuses on natural capital valuation, carbon markets, and the scaling of agroforestry investments in Europe. Contact and further articles: verdantiscapital.com | LinkedIn
Über den Autor: Dirk Röthig ist CEO von VERDANTIS Impact Capital, einem Unternehmen das in nachhaltige Agrar- und Technologieinnovationen investiert. Mehr Artikel auf dirkroethig.com.
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