Empowerment & Restoration Research Park

Center for Applied Forest Restoration Research & Advice
in Mexico's Balam-K煤 Ecosystem Reserve

Planting a single tree is easy. But how do you restore vast, degraded forests and bring back as many of the locally lost species as possible? Which restoration methods are most effective in different ecosystems and different levels of degradation? How can regrowing forests withstand and mitigate the complex challenges of the climate crisis? How can restoration be maximally beneficial to the local community?

Many important scientific questions remain unanswered. And restoration initiatives around the world are waiting for answers.

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Ongoing Research

Planting Density Optimisation

Planting Density Optimisation

How do different soil conditions affect the optimal planting density and planting pattern? That鈥檚 one of the key questions for tree planting efforts. To address this, we replicated a range of planting densities across a range of soil conditions in our largest experiment with 1.2 million seedlings of 21 species. This effort was integrated directly into our ongoing restoration effort.聽

We seek to understand how different planting densities affect the short and long term carbon and biodiversity dynamics of regrowing forests in different soil conditions.

The experiment was set up in 2021 in collaboration with Dr. Leland Werden and is set out to be a 30-year trial. We expect to publish the first data after three years.

Nitrogen-Fixing Species

Nitrogen is one of the key nutrients plants need to grow. To do so, they extract inorganic nitrogen from the forest soil. A lot of tropical dry forests are Nitrogen limited. That means that the low levels of nitrogen is the primary reason plants in that ecosystem are not growing faster. So what can be done?

Well, there is one family of plants with a unique ability. Species in the Fabaceae family (also called Legumes) grow small nodules on their roots and in those nodules they host special bacteria. These bacteria can fix nitrogen from the atmosphere and convert it into the type of nitrogen that plants can use. So while all other plants are competing for the limited inorganic nitrogen in the forest soil, the Fabaceae species just create their own through this symbiosis.聽

But that's not all. When plant material of these species decompose, that 鈥榥ew鈥 nitrogen is made available to other plants around. So in effect, they are helping other plants without that ability, to grow too.

So what percentage of all the seedlings planted should be such n-fixers to maximise growth without reducing forest biodiversity?

To answer that, we set up the first experiment with 16,000 trees in 2020. The experiment includes 160 subplots, evenly divided between ones that have 0%, 10%, 30% and 60% n-fixer species.聽

Continuous Research for Climate Justice
Map of the n-fixer optimisation field experiment in Las Americas 5 with 16,000 seedlings in a randomised block design.

Forest Soil Microbiome Restoration

We are also testing a hypothesis that a simple addition of forest soil to a tree鈥檚 planting hole can increase survival rates. We expect to be introducing symbiotic microbes through the soil addition and thus the soil microorganism diversity in degraded soil towards communities that 鈥榟elp鈥 the trees grow.

Continuous Research for Climate Justice

Functional Diversity Restoration

How can we build optimal species mixes that catalyze the recovery of resilient forests and help ensure that the right trees are planted in the right places?

In collaboration with the Global Experiments Network.

The aim of the study is to test and develop a method for selecting species mixes that not only better resemble those found in natural forests, but also are more likely to be resilient to future environmental conditions while contributing to the multiple socio-environmental benefits of forest restoration.聽

We look at how specific values of functional traits as well as complex mixes of traits influence growth, survival, recovery of native biodiversity, provisioning of ecosystem services, and in the long-term, stand-level resilience to climate change. This will provide insights into patterns of ecosystem recovery under different compositions and combinations of planted tree species. By grouping species by their functional traits, we can start to predict how the extraordinary diversity of tree species across the tropics are likely to respond when planted across the range of environmental conditions present at specific restoration sites.聽

The study consists of 36 experimental plots that measure 15 脳 15m each and are spaced 10 m apart. Each plot is given one of six different planting treatments 鈥撀爎eplicated six times.

Neutral vs Niche Theory: What drives tree diversity in secondary forests?

What are the underlying processes that generate tree diversity in tropical dry forests that have been impacted by human land use? Anna Gee, a Ph.D. student from Imperial College, London aims to answer that question.聽 Her work explores theories of community assembly that have mainly been developed in undisturbed forests and apply them to disturbed systems to look for changes to the fundamental ecological processes driving forest composition. This work involves large-scale surveys of the seed, seedling, and sapling communities in sites across Las Americas 7. Looking at these early stages in the life cycle of the trees can help to build up a picture of what naturally regenerating forests at this site might look like in the future.

A range of other projects look at germination procedures, seed rain, assisted vs natural regeneration, and post-disturbance community assembly.聽

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Restoration Advice Team

Nested within the Empowerment & Restoration Research Park is our Restoration Advice Team. We are building this team of experienced restoration ecologists to provide actionable restoration advice for projects around the world. The advice directly builds on the insights discovered by the research team.

Plant-for-the-Planet already collaborates with more than 200 forest restoration projects in over 50 countries. Many of them will benefit from the support of this team.

Learn More
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Infrastructure & Team

Research Team
A botanist, a research coordinator and a team of field assistants support a range of experiments.
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129 ha Experimental Sites
Two mostly-deforested research sites, a totally of 129 ha allow for a range of large restoration field experiments. Additionally, Plant-for-the-Planet鈥檚 20,000 ha of restoration and conservation sites, as well as the 500,000 ha of the Balam-K煤 and Balam-Kin reserves, can be used for further (non-destructive) research.
Experimental Nursery
Our on-site nursery with a capacity for 200,000 seedlings can help grow specific species for experiments and allow for experiments on seedlings. `
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Shadehouse
For experiments where we need to control water levels, we have a 100 m虏 shade house.
Drying Room
With our drying room, we can dry hundreds of soil and plant samples at once before sending them to a lab.
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Office & Accommodation
Our office is a shared space for the restoration, advisory, quality control and research teams.
Tour of the Campus


鈥淚t was a trip full of surprises. We arrived at a true earthly paradise, the cradle of the ancient Mayan culture that today remains in ruins. The objective was to lay the first stone for the creation of a Training and Forest Restoration Park, promoted by the prestigious UN-associated non-governmental organisation, Plant-for-the-Planet鈥
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鈥淚n an interview with this newspaper, Negrete Cetina highlights that the research park will provide the opportunity to learn directly about the studies being done on environmental issues and find solutions for deforestation, climate change and the restoration of flora and fauna.鈥
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鈥淪ince founding in 2013, [Plant-for-the-Planet鈥檚] reforestation program has planted 7.5 million trees until November of last year. The 39 hectare Research Park will include laboratories, nurseries and housing for the researchers who will be there.鈥
CANAL 13
    Research Fellowships
    A fieldsite for scientists from all over the world

    Universities and research institutes often lack the facilities to offer researchers聽 the necessary framework conditions to test forest restoration methods in the聽 open field. Especially when it comes to large-scale experiments that require a lot of space.聽 Interested in setting up a restoration field trial with us? Our team is excited to help with setup and data collection for your experiment. And you are welcome to live with us on-site for the duration of your experiment.

    Interested in becoming a research fellow? Send your application to felix.finkbeiner@plant-for-the-planet.org

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    Support Us!

    We need help to set up a range of further, crucial experiments and to build our restoration advice team so that struggling forest restoration projects around the world can benefit from expert advice.

    Interested in supporting us? We鈥檇 love to hear from you! felix.finkbeiner@plant-for-the-planet.org

    Or donate directly!

    Donate for the Research Park
    Laying the Cornerstone
    The research site was inaugurated by Mayor Miguel Arcos, Environment Minister Dr. Sandra Laffon, CONAFOR Director Dr. Carlos Tucuch, Plant-for-the-Planet Chair Felix Finkbeiner, UT Calakmul Rector Andr茅s Zamudio, INIFAP Scientist Fernando Arellano & Plant-for-the-Planet Mexico President Ra煤l Negrete Cetina
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    Research Partners
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    Scientific Advisors

    The research efforts are guided by members of our Scientific Advisory Board
  • Dr. Leland Werden
    Chief Scientific Advisor
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  • Prof. Dr. Tom Crowther
    Scientific Advisor
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  • Dr. Colin Averill
    Scientific Advisor
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  • Prof. Bonnie Waring
    Scientific Advisor
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  • Prof. Dr. Dr. Dr. h.c. Franz Josef Radermacher
    Scientific Advisor
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