Arborpedia

Threads

Curated routes across the encyclopedia. Each thread weaves entries from several disciplines into a coherent path you can read end-to-end.

Thread № 01
09 entries

From bare ground to forest

The full arc — looking at land, reading what it needs, and walking it back to forest.

  1. Step 01№ 055

    Observation First: Watch Before You Act

    Why a full year of watching your land beats any intervention, and how patience lets biodiversity solve problems that spraying cannot.

    Growing
  2. Step 02№ 079

    Reading the Land: Site Assessment for Restoration

    How to interpret slope, water flow, vegetation patterns, and soil indicators to build a restoration plan grounded in what the land tells you.

    Restoration
  3. Step 03№ 083

    Soil Testing: Know What You Have Before You Amend

    Test pH, nutrients, and texture before amending. Guessing wastes money, stunts growth, and pollutes waterways downstream.

    Growing
  4. Step 04№ 014

    Cover Cropping: Green Manures That Build Soil

    How sowing clover, vetch, rye, and other cover crops between seasons fixes nitrogen, prevents erosion, suppresses weeds, and feeds the soil food web.

    Growing
  5. Step 05№ 062

    Pioneer Species: Nature's First Responders

    How pioneer trees colonise bare ground, stabilise soil, and create conditions for full ecosystem recovery in restoration work.

    Restoration
  6. Step 06№ 054

    Nurse Trees: Sacrifice Species That Shelter the Future

    Fast-growing sacrifice species that shelter slower, more valuable target trees through the brutal early years of restoration.

    Restoration
  7. Step 07№ 002

    Assisted Natural Regeneration: Let the Forest Come Back

    Remove the pressure that's killing regrowth: fencing, fire timing, selective weeding. The forest is already in the soil waiting to return.

    Restoration
  8. Step 08№ 042

    The Miyawaki Method: Dense Native Forests in Decades

    How Akira Miyawaki's technique of dense native planting creates self-sustaining forests 10x faster than conventional methods.

    Restoration
  9. Step 09№ 070

    Reforestation Techniques for Degraded Lands

    Practical field guide to restoring forest on degraded land, from soil tests to species mix to the first five years of tending.

    Restoration
Thread № 02
09 entries

Water from sky to soil

Catching rain on a roof, slowing it across a slope, banking it underground.

  1. Step 01№ 005

    Roof Catchment Calculation: Know Your Numbers

    How to calculate rainwater yield from your roof area, accounting for runoff coefficients, losses, and annual rainfall to size your harvesting system correctly.

    Water
  2. Step 02№ 069

    Rainwater Harvesting Basics

    Catch the rain off your roof, hold it in a tank, and water your garden through the dry months. Here's how.

    Water
  3. Step 03№ 028

    First-Flush Diverters: Clean Water from the Start

    How first-flush diverters work to remove dust, bird droppings, pollen, and debris from the initial roof runoff before it enters your rainwater tank.

    Water
  4. Step 04№ 089

    Tank Sizing: How Much Storage Do You Need?

    Match roof supply to garden and household demand with a monthly water budget that reveals the real storage volume you need.

    Water
  5. Step 05№ 088

    Water Tank Placement: Shade, Elevation, and Gravity

    Where to put a water tank so shade keeps it cool, elevation gives free pressure, and overflow feeds the landscape instead of eroding it.

    Water
  6. Step 06№ 087

    Swales on Contour: Passive Water Harvesting

    Design and build contour swales that catch runoff, recharge groundwater, and turn dry hillsides into productive land.

    Water
  7. Step 07№ 006

    Check Dams: Slowing Water, Building Land

    How small rock, log, or earth barriers placed across drainage lines slow erosion, capture sediment, infiltrate water, and gradually rebuild degraded gullies.

    Water
  8. Step 08№ 065

    Ponds and Dams: Landscape-Scale Water Storage

    How to site, build, and shape ponds and dams that store irrigation water, host wildlife, buffer microclimate, and defend against fire.

    Water
  9. Step 09№ 084

    Soil Is Your Biggest Water Tank

    How organic matter turns soil into a massive water reservoir, and the practical moves that increase your water-holding capacity.

    Water
Thread № 03
09 entries

Building soil from nothing

How to grow a living loam where there isn't one yet.

  1. Step 01№ 083

    Soil Testing: Know What You Have Before You Amend

    Test pH, nutrients, and texture before amending. Guessing wastes money, stunts growth, and pollutes waterways downstream.

    Growing
  2. Step 02№ 080

    Soil Cover: Never Leave Ground Bare

    Exposed soil loses life, moisture, and structure within hours. Mulch and living cover protect biology, hold water, and build fertility.

    Growing
  3. Step 03№ 013

    Composting Methods: From Kitchen Scraps to Black Gold

    Hot, cold, bokashi, vermicomposting, Berkeley. A practical guide to every composting method, matched to your space, time, and materials.

    Growing
  4. Step 04№ 012

    Compost Tea: Liquid Biology for Your Soil

    How to brew aerated compost extract to multiply beneficial microbes and apply them as a soil drench or foliar spray, with honest notes on the science.

    Growing
  5. Step 05№ 040

    Leaf Mould: Forest Floor in a Bag

    Collect autumn leaves and let fungi turn them into a dark, crumbly, moisture-holding mulch. The finest soil conditioner you can make for free.

    Growing
  6. Step 06№ 092

    Vermiculture: Worm Farming for the Best Fertiliser on Earth

    Worm castings, worm bins, and worm towers. The quiet engines that produce the richest natural fertiliser available.

    Growing
  7. Step 07№ 004

    Biochar: Ancient Carbon for Modern Soil

    Charcoal made for soil, not fuel. How to make it, charge it, and apply it without stripping nutrients from your beds.

    Growing
  8. Step 08№ 035

    Hugelkultur: Building Soil with Buried Wood

    Hugelkultur mounds bury logs under soil to hold moisture, release nutrients slowly, and produce food for two decades or more.

    Growing
  9. Step 09№ 053

    No-Dig Gardening: Feed the Top, Skip the Fork

    Stop turning soil. Layer compost on the surface, let worms and fungi do the work, and grow healthier crops with less effort.

    Growing
Thread № 04
07 entries

Designing a productive guild

Plant communities that feed each other so you don't have to feed them.

  1. Step 01№ 011

    Companion Planting Guide

    Which plants grow well together, which fight, and how to design beds that suppress pests and feed each other.

    Growing
  2. Step 02№ 090

    The Three Sisters: Corn, Beans, and Squash

    Three plants, one mound. Corn for height, beans for nitrogen, squash for cover. A thousand years of Haudenosaunee farming distilled into a guild that still works.

    Growing
  3. Step 03№ 064

    Polyculture: Diversity as Pest Control

    Mixed plantings beat monocultures on pests, soil, and resilience. Here is how to design diverse beds that actually work.

    Growing
  4. Step 04№ 031

    Fruit Tree Guilds: Self-Fertilising Systems

    Design plantings around a fruit tree so nitrogen fixers, dynamic accumulators, ground covers, and pest confusers feed the system and reduce inputs every year.

    Species
  5. Step 05№ 085

    Succession Planting: Continuous Harvest All Season

    Stagger sowings every two to three weeks and the harvest stops being a glut. It becomes a conveyor belt.

    Growing
  6. Step 06№ 060

    Perennials First: Plant Once, Harvest for Decades

    Why the smartest long-term investment in any garden or homestead is to prioritise fruit trees, berry bushes, and perennial crops that compound their productivity year after year.

    Growing
  7. Step 07№ 030

    Designing a Food Forest

    How to stack seven layers of edible woodland that feeds you for decades while slowly shedding the chores of an annual garden.

    Growing
Thread № 05
06 entries

Working with succession

Reading where a piece of land wants to go, then helping it get there faster.

  1. Step 01№ 062

    Pioneer Species: Nature's First Responders

    How pioneer trees colonise bare ground, stabilise soil, and create conditions for full ecosystem recovery in restoration work.

    Restoration
  2. Step 02№ 054

    Nurse Trees: Sacrifice Species That Shelter the Future

    Fast-growing sacrifice species that shelter slower, more valuable target trees through the brutal early years of restoration.

    Restoration
  3. Step 03№ 049

    Native Plant Selection: Right Plant, Right Place

    How locally adapted natives cut maintenance, feed wildlife, and build resilient landscapes, and when a non-native earns its place.

    Growing
  4. Step 04№ 085

    Succession Planting: Continuous Harvest All Season

    Stagger sowings every two to three weeks and the harvest stops being a glut. It becomes a conveyor belt.

    Growing
  5. Step 05№ 071

    Rewilding Edges: The Biodiversity of Untidiness

    Why the boundaries you stop mowing become the richest part of your land, and how to manage the social pushback while nature reclaims the margins.

    Restoration
  6. Step 06№ 002

    Assisted Natural Regeneration: Let the Forest Come Back

    Remove the pressure that's killing regrowth: fencing, fire timing, selective weeding. The forest is already in the soil waiting to return.

    Restoration
Thread № 06
07 entries

Water at the plant level

Once water reaches the bed, how to get the most out of every drop.

  1. Step 01№ 036

    Hydrozoning: Group Plants by Water Needs

    Group plants by water need, irrigate each group on its own schedule, and cut outdoor water use by 30 to 50 percent.

    Water
  2. Step 02№ 045

    Mulching for Moisture: Cut Evaporation by 70%

    How a thick mulch layer shades the soil, blocks wind, and stops capillary loss, plus which materials work best for moisture retention.

    Water
  3. Step 03№ 018

    Deep Watering: Stronger Roots, Less Water

    Water deeply and rarely. Roots chase moisture down, and a garden that drinks once a week beats one sprinkled every evening.

    Growing
  4. Step 04№ 094

    Watering Timing: When You Water Matters

    Why the hour you irrigate shifts efficiency, plant health, and disease risk, and how to adjust your schedule across the seasons.

    Water
  5. Step 05№ 056

    Ollas: Ancient Clay Pot Irrigation

    Bury unglazed clay pots near your plants and water seeps out to roots on demand, cutting water use by 50 to 70 percent.

    Growing
  6. Step 06№ 096

    Wicking Beds: Self-Watering from Below

    Wicking beds hold a sub-surface reservoir and feed roots through capillary action, cutting evaporation and stretching tank water through dry weeks.

    Water
  7. Step 07№ 020

    Drip Irrigation: Precision Watering at 90% Efficiency

    Drip delivers water straight to the root zone at 90 percent efficiency, cutting waste, disease, and labour against any overhead system.

    Water
Thread № 07
06 entries

The living web

The bacteria, fungi, worms, and insects that turn dirt into soil.

  1. Step 01№ 081

    The Soil Food Web: Life Beneath Your Feet

    The invisible ecosystem in healthy soil: bacteria, fungi, protozoa, nematodes, and arthropods that cycle nutrients and build structure.

    Species
  2. Step 02№ 046

    Mycorrhizal Fungi: The Underground Internet

    How mycorrhizal fungi form partnerships with plant roots, extending their reach a hundredfold to transport water, nutrients, and chemical signals through an underground network.

    Growing
  3. Step 03№ 052

    Nitrogen-Fixing Bacteria: Free Fertiliser in Every Root

    How Rhizobium, Frankia, and free-living bacteria pull atmospheric nitrogen into the living world and feed every productive ecosystem.

    Species
  4. Step 04№ 023

    Earthworms: Nature's Tillers

    Why Darwin called earthworms the most important creature on earth, and how to count, feed, and protect the populations that build your soil.

    Species
  5. Step 05№ 017

    Decomposers: The Hidden Recyclers

    Fungi, bacteria, beetles, and worms unlock nutrients from dead matter. Without them, soils never form and forests collapse within years.

    Species
  6. Step 06№ 082

    Soil Inoculation: Restoring the Missing Biology

    Introducing mycorrhizal fungi, nitrogen-fixing bacteria, and microbial communities to soils that have lost their living systems.

    Restoration
Thread № 08
07 entries

A garden for wildlife

Letting the rest of the ecosystem move in and do its half of the work.

  1. Step 01№ 063

    Pollinator Habitat: Beyond Honeybees

    Support the 20,000 bee species and the butterflies, moths, hoverflies, and beetles that hold ecosystems together.

    Restoration
  2. Step 02№ 047

    Native Bees: 20,000 Species Beyond the Honeybee

    The world's 20,000 wild bee species are mostly solitary, mostly overlooked, and outperform honeybees on most crops they touch.

    Species
  3. Step 03№ 034

    Hoverflies: Pollinator and Pest Controller in One

    How hoverflies deliver both pollination and aphid control in one insect family, and why flat-topped umbellifer flowers pull them in.

    Species
  4. Step 04№ 074

    Birds as Seed Dispersers: Recruitment Services for Free

    Fruit-eating birds carry seeds kilometres from parent trees, drive forest regeneration, and stitch fragments together when you plant the right fruiting species.

    Species
  5. Step 05№ 016

    Dead Wood Habitat: Leave It, Add More

    Why standing and fallen dead wood is one of the most important habitats in any forest, supporting over twenty percent of woodland biodiversity.

    Restoration
  6. Step 06№ 097

    Wildlife Corridors: Connecting Fragmented Habitats

    How hedgerows, riparian strips, and green bridges reconnect isolated habitat patches, keeping gene flow alive and preventing local extinctions.

    Restoration
  7. Step 07№ 071

    Rewilding Edges: The Biodiversity of Untidiness

    Why the boundaries you stop mowing become the richest part of your land, and how to manage the social pushback while nature reclaims the margins.

    Restoration
Thread № 09
12 entries

Trees worth knowing

A field tour through the species this encyclopedia keeps coming back to.

  1. Step 01№ 048

    Native Oaks: Backbone of Temperate Forests

    Why native oaks support more biodiversity than almost any other tree genus, and how to grow them for restoration and food production.

    Species
  2. Step 02№ 007

    Chestnut: The Tree That Fed Civilisations

    How chestnuts fed mountain Europe for millennia, why the American chestnut nearly vanished, and how to fit chestnuts into a working food forest.

    Species
  3. Step 03№ 093

    Walnut: High-Value Timber and Food

    Walnut pairs premium timber with calorie-dense nuts. Design around juglone allelopathy and you get one of the most profitable trees in temperate agroforestry.

    Species
  4. Step 04№ 001

    Alder: The Nitrogen-Fixing Wet-Site Pioneer

    How alder partners with Frankia bacteria to fix nitrogen, hold stream banks, and turn waterlogged ground into fertile soil for the trees that come next.

    Species
  5. Step 05№ 077

    Silver Birch: Light Canopy, Deep Roots

    How silver birch colonises bare ground, connects with over a hundred fungal species, and nurses slower trees toward maturity.

    Species
  6. Step 06№ 098

    Willow: The Pioneer That Grows from a Stick

    Willows root from bare cuttings, stabilise riverbanks, coppice endlessly, and serve as living infrastructure across temperate landscapes.

    Species
  7. Step 07№ 059

    Paulownia: The Fastest Growing Hardwood on Earth

    Paulownia grows faster than any hardwood on earth. That power makes it valuable on degraded land and dangerous in the wrong place.

    Species
  8. Step 08№ 025

    Eucalyptus: Controversial Giant, Essential Keystone

    Why eucalyptus is not one tree but over 700 species, irreplaceable in Australia and disruptive when planted as monocultures elsewhere.

    Species
  9. Step 09№ 044

    Moringa Oleifera: The Miracle Tree

    Everything you need to know about growing and using Moringa oleifera, the fast tropical tree with edible leaves and seed-based water purification.

    Species
  10. Step 10№ 003

    Baobab: The Tree of Life

    The ancient baobab stores thousands of litres of water, feeds people and pollinators, and anchors African savannas for two thousand years.

    Species
  11. Step 11№ 026

    Fig Species: Tropical Keystones That Feed Everything

    Why 750-plus species of Ficus are the most important tree genus in the tropics, fruiting year-round and feeding more wildlife than almost any other plant.

    Species
  12. Step 12№ 041

    Mangroves: Coastal Guardians

    Salt-tolerant trees that build coastline, store carbon at five times the rate of upland forest, and feed three quarters of tropical fisheries.

    Species
Thread № 10
06 entries

Shaping land with earthworks

Moving the dirt so the water, the roots, and the access lines all go where you want them.

  1. Step 01№ 039

    Keyline Design: Moving Water from Valleys to Ridges

    P.A. Yeomans' keyline system reads the shape of the land and uses gravity to push water from wet valleys to dry ridges.

    Water
  2. Step 02№ 022

    Earthworks and Contouring: Shaping Land to Hold Water

    Landscape-scale water management through grading, contouring, and earth structures that slow, spread, and sink rainwater into the ground.

    Water
  3. Step 03№ 087

    Swales on Contour: Passive Water Harvesting

    Design and build contour swales that catch runoff, recharge groundwater, and turn dry hillsides into productive land.

    Water
  4. Step 04№ 006

    Check Dams: Slowing Water, Building Land

    How small rock, log, or earth barriers placed across drainage lines slow erosion, capture sediment, infiltrate water, and gradually rebuild degraded gullies.

    Water
  5. Step 05№ 065

    Ponds and Dams: Landscape-Scale Water Storage

    How to site, build, and shape ponds and dams that store irrigation water, host wildlife, buffer microclimate, and defend against fire.

    Water
  6. Step 06№ 024

    Erosion Control: Stabilise Before You Plant

    Why preventing soil loss is the essential first step in restoration, and the passive and living methods that hold ground while ecosystems recover.

    Restoration