with Klaudia von Gool
Excerpted from our double certificate design course.
Climate will vary more locally through human structures, topography, altitude, vegetation and water masses. This is called microclimate. By observing and analysing our microclimate we can design strategies to modify it.
Let's look at some of these factors in more detail.
Topography is the shape of the landscape and includes aspect and slope. Hills, mountains and valleys affect how wind moves through a landscape, as the wind moves around hills, speeds up near the top of hills, and funnels through valleys.
Aspect, the direction land faces, affects the amount of sunlight on a site. For example, a south facing site in the Northern Hemisphere will be a sunny site and can produce more biomass/vegetation.
Slope, the gradient or steepness in the land, will affect wind speed; this increases towards the top of a slope. Turbulence will be experienced just past the top of a slope. This is important information when situating wind turbines, as they work more efficiently without turbulence.
Cold air will sink and move down the slope. Accordingly, the slope will impact thermal zones, and a cold sink may occur just above structures or vegetation lower down the slope or in slightly depressed areas. In colder areas this can create a frost pocket.
Altitude. Temperature decreases with higher altitudes. We also find higher wind speeds and more moisture, because of rain or other precipitation at higher altitudes.
Studying existing vegetation can give us clues to rainfall, wind strength and direction and soil fertility. A way to discover the prevailing wind in our local landscape is by observing trees.
This picture shows how the wind has shaped the trees, restricting growth on the side that the wind blows from, so that there's more growth on the other side.
As well as trees being affected by wind, trees themselves can also affect the wind in the landscape and other microclimate factors. For example, in temperate climates it is cooler and less windy in a forest while it's hot outside of it, as trees provide shade and a more moist microclimate and act as a windbreak. At night it stays warmer in a forest compared to out in the open, as the trees create shade from the wind and trap warmth. This does depend on the season and vegetation/leaf cover.
On a larger scale trees contribute to the creation of rain through evapotranspiration.
Urban environments create warmer microclimates through the "heat island effect," as concrete absorbs more heat than the surrounding countryside. In general it is warmer in the centre of a city.
The hard surface of buildings, roads and straight lines of streets also create a wind tunnel effect, where wind speeds up. Tall buildings can create wind turbulence. Buildings can create a rain shadow, so there is a drier and a wetter side.
Microclimate and niche.
Microclimates are directly connected to ecological niches, where organisms occupy a space where they can thrive optimally. Creating, or being aware of having, a variety of microclimates, means you can have a wide variety of niches for more diverse planting, keeping animals, and thus increasing yields.
We can make modifications to a microclimate to reduce and direct wind flow, as wind has a growth limiting effect on vegetation. On a windy site, planting windbreaks and shelterbelts is one of the earliest modifications needed. These create more sheltered areas and can direct the flow of air, including cold air coming downhill. Using plants to reduce wind is more effective than solid structures, which create more turbulence. In addition, we can choose species for multiple functions, which again creates more yields.
We can modify our local climate or microclimate by adding water storage, which can modify temperature fluctuations. On a larger scale, we can introduce lakes or ponds to modify heat and to add light reflection. On a smaller scale, adding water storage inside a greenhouse or polytunnel will help buffer extremes of temperature.
In hot climates, planting trees and adding vegetation gives a cooling effect. This is as a result of shade and evaporation, which creates cooling.
We can modify climate and microclimate through buildings, like adding a greenhouse. When we place a dwelling to the North of a greenhouse (in the Northern Hemisphere) we can make use of surplus heat and protect plants. We can paint walls white in darker, shadier areas to direct in more light and improve growth and ripening by reflecting light. Dark walls reduce frost risk by keeping warmer.
We can use thermal mass like rocks or stone walls to absorb heat and plant more tender plants close up to it. We can also use the cooler temperature of the Earth, whilst it’s warmer at the surface, to create a root cellar for food storage into the Earth, without energy based refrigeration.
In cooler climates, you can create sun traps. These designs are sun-facing and wind-still, creating shelter from cold and destructive winds by capturing maximum sunlight all day. In the Victorian era in the UK, walled gardens were built on large estates to create microclimates for tender crops. Fruit trees were trained up against the walls in fan or espalier shapes.
Hot beds are created by placing small glass frames on top of piles of manure, which generated heat as they rotted down. This is a form of season extension.
Start making some notations on a basic sketch map of your design area. Notice how microclimates work with both intentional and unintentional design. Note other microclimate factors: buildings/structures, landform, altitude, aspect, slope, larger vegetation; sketch these onto your map.
Make a very basic notation of the microclimates with colours or symbols.
Note areas that are driest, wetter, windiest, most wind-sheltered, where it might be warmest in the morning and evening, and anywhere that would be cool all day.
What different needs and opportunities are associated with these microclimates?
This miniclass is excerpted from the Climates, Biogeography and Microclimates module of our double-certificate design course, taught by Klaudia von Gool.
Klaudia draws on over 20 years experience and study to express her lifelong passion for the environment through facilitating people care and social design programs across the UK, Europe and the Middle East. She’s an Environmental Scientist, Consultant, Parent, Mentor, Coach, Permaculture Teacher and Designer and student of healthy intact cultures and indigenous wisdom. Using her many practical and ceremonial skills, her work focuses across land-based, community and inner sustainability in order to fully activate the human potential in service of life, culture repair and rebuilding the village.
Further information on this topic:
Cloud catchers. In an arid climate in Peru the people are harvesting fog for water as a low tech method of irrigating crops.
Regenerative Agriculture, Beyond Sustainability.
An inspiring film about regenerative agriculture. For the microclimate relevant part, watch from 12:35 to see the story of one farm, known as 'Dry Lands', that was destroyed by its previous owner. When the new owner replanted, he found that slowly the temperature on the land dropped, the climate changed, soil 'grew' as he added organic matter from vigorous pruning, water was retained, drought conditions were reversed and water started to run in the streams year-round.
#microclimates #ecologicalniches #freepermaculture #permaculturedesign #permaculturewomen
with Kareen Erbe
Excerpted from our double certificate design course.
Appropriate technology and permaculture design go hand in hand. Remember that permaculture is a design approach that meets our food, energy, shelter and other needs. Through appropriate technology, we are engineering ways in which to meet those needs in the simplest, most locally based ways possible.
The ecological crises that we are facing today is very much related to the fact that our economy, our agriculture, and our technologies are out of scale with what the planet can support. When entities are out of scale, natural patterns in the landscape are disrupted. In fact, it is our advances in technology that have led to a lot of that destruction. For example, combine harvesters have allowed us to cultivate large monocultures that have led to soil erosion and topsoil depletion.
Advances in cell phones and computers, coupled with consumerism and a global economy, have not only mined the earth of natural resources, but have created tons of electronic waste that fill our landfills.
Understanding and using appropriate technology is about bringing things back into scale and applying the permaculture principle of using small and slow solutions.
As mentioned in the video, appropriate technology is technology that is suited to the social and economic conditions of a particular region in which it is to be applied, is ecologically sound, and promotes self-reliance on the part of those using it. It is:
Often labor-intensive but energy efficient.
Reducing our consumption first.
Before you think of applying appropriate technologies, think first about reducing your consumption. Though it’s heartening to see advances in alternative energy, such as solar and wind, it seems like many of these advances are designed to meet society’s current needs, without addressing our overconsumption.
For example, people choose to put solar panels on their roofs to power their TVs, dryers, multiple appliances, and possibly even multiple cars.
While it may be a step in the right direction, alternative energy technology often prevents us from taking a good look at our consumption. What’s more, these technologies contain a lot of embodied energy. From the extraction of the base materials to the manufacturing and the shipping, the energy involved in producing a product like a solar panel or a wind turbine is substantial.
Chances are that if you live in a developed nation, you are likely consuming at a level that is not sustainable for the rest of the planet. The challenge is not to find an energy source that will support that lifestyle, the solution first lies in our willingness to reduce our consumption.
Then, we can look at appropriate technologies to meet our reduced needs.
The most obvious way to reduce consumption is through growing your own food. Reducing our transportation miles from farm to table immediately reduces our impact.
Household strategies for reducing consumption.Simple strategies in your home can go a long way. For example, though we have a permaculture homestead, we do live in a conventional home. However, before putting solar panels on our roof, which is perfectly aspected for that technology and in a climate where it makes sense, I am going to look at ways to reduce our energy use first.
This is what we have done so far:
In the coming years, our plan is to attach a greenhouse to the front of the house. This will not only provide passive solar heating, which is key in our cold climate, but serves the additional function of growing more food and extending our short growing season. Only after we’ve added a greenhouse, will I then consider solar panels. However, I’ll evaluate our energy bills at that point, balancing the expense of the panels and their embodied energy versus the energy produced.
Again, using small and slow solutions that take minimal resources is your primary goal. Below is a checklist for easily reducing your household consumption in a conventional home.
Checklist for easily reducing household energy consumption in a conventional home.
Cooking and food storage
Heating your home, cooking and food storage are some of the most consumptive ways in which we use energy. According to the aforementioned report, lighting and other appliances (e.g. toasters, ovens, blenders) comprise 30% of energy consumption in a home, and refrigeration accounts for 5%. In my video, I cover one simple and easy appropriate technology that you can start using within minutes, and touch briefly on several other technologies to consider.
Here is a link to the photo album on Facebook that I reference in the video. This will take you through the step-by-step process of building a cob oven.
Here’s some activities you could do to use what you’ve learned:
Make a blanket box for your household and cook something with it. If you need a reminder on how to make a blanket box, go back to the Cooking and Food Storage video in this module. Make a note of how long it took your meal to cook and how much energy you saved.
Invite your friends over to share a blanket box meal and get them to commit to doing the same! During the dinner, share ways in which you will be using appropriate technology and reducing consumption around your home. Ask them to commit to one action.
This miniclass is excerpted from the Appropriate Technology module of our double-certificate design course, taught by Kareen Erbe.
Kareen Erbe is the owner of Broken Ground, a permaculture business in Bozeman, Montana, USA, that teaches people how to grow their own food and become more self-reliant. She has taught hundreds of students through her workshops, both live and online, and offers consultations and permaculture design services. She and her family live on a ¾ acre suburban homestead with large kitchen gardens, a food forest of fruit trees and berry bushes, a greenhouse, a pond, beehives as well as chickens and ducks. Kareen is a regular contributor to Rocky Mountain Gardening Magazine and can be reached through her website brokengroundpermaculture.com. She also has an online course platform at brokenground.teachable.com.
Further reading on this topic
Bubel, Nancy and Mike. Root Cellaring: Natural Cold Storage of Fruits and Vegetables. North Adams: Storey Publishing, 1991.
Kerr, Barbara. The Expanding World of Solar Box Cookers. Self-published. 1991. - A 79 page book with plans/diagrams for solar cookers. Here is a link to the text of the book and info about purchasing.
#appropriatetechnology #freepermaculture #permaculturewomen #blanketbox #reduceconsumption
with Crystal Stevens
Excerpted from our double certificate design course.
When you begin to look at your own site with a permaculture lens, you begin to see your home as a system in which the zones and sectors can provide a foundation for your design. Zones are a tool for organizing and laying out a site so that energy, time and resources like water are used efficiently.
In classic zone mapping, the house is referred to as the centralized hub of human activity. The home is more efficient and functions better when everything has its place, when items are organized, and when clutter is minimal. Our homes are the places we retreat to. The home system is where we can reduce our carbon footprint while building a legacy of green handprints.
It is important to start at home when designing the home system since the home is the central hub for our activities. If our home functions well as a permaculture system, then our other permaculture endeavors will be more successful and we will have overall better organizational and design skills. In this mini class you will learn to view your home and its immediate surroundings through a permaculture lens.
Zone One: Home sweet home, the domestic zoneZone one includes the home, the central hub of our activity. A place where we rest and recuperate, eat, sleep, gather, dream and create.
Everyone’s home is different. Some people prefer quiet, minimalist spaces while others thrive in busy chaos. Within the shared and different preferences of the household, there is space for creating systems that reduce the amount of work needed to keep the home as you all prefer it. So often, time and energy (and tempers!) are lost looking for things. Mapping the zones and sectors inside the house can serve as a useful observation tool and help reveal fresh insights into how the house and its occupants function.
An example from my own home system:
For the last several years, I have been eliminating things that no longer serve me in my home. Each month, I dedicate a day to go through old bins of paperwork, fill a few bags of donation items, re-organize spaces that are not functioning efficiently, etc. Through this process, I have been able to organize zones of my home by categories. Because my husband and I are multifaceted and have way too many hobbies, we have several functioning zones throughout our home.
We have an area that functions as an art studio with shelves for clearly labeled art supplies.
We have an area designated to our gardening resources, which houses our seed library, gardening books, and small gardening supplies, such as small tools and gloves.
We also have a home apothecary, stocked with homegrown dried herbs, tinctures and oil infusions in process, herbal medicine making supplies, and a resource library for herbs and herbalism. We have a huge farm table in our dining room that serves multiple purposes; as a place to have family meals, an arts and crafts area, and a seed starting workspace. This table is located in a room where we host workshops.
Growing and storing food in Zone 1.There are a surprising number of things you can grow indoors, especially if you have a sunny windowsill or two. Sprouting seeds and growing microgreens can be done all year round, and are a great source of vitamins in the winter months. However, sprouting seeds works best in drier climates. In humid areas mould can be a problem so you may find you need to sterilise glass jars in the oven between crops.
Houseplants don’t have to only look nice! Spider plants are renowned for cleaning toxins the air, but they are not the only ones that do this as this poster shows. Some of these plants, such as ferns, prefer not to be in direct sunlight, leaving that sunny windowsill free for other things.
Aloe vera is a useful plant to have in the kitchen as a living part of the first aid kit. Dab some of the goo from a leaf on a burn for instant relief. (Hold the injured part under cold water first.)
There are several edible plants you can grow indoors which means that even in an apartment you can grow some of your own food. Herbs are a great addition to a kitchen windowsill, especially as you only need a small amount to transform a dish. Don’t forget to water them! Keep an eye out for aphids. These can be squished or else brushed off with the help of soapy water. Or simply swap the pot with one outside, and let the ladybirds enjoy the aphids!
A sunny windowsill is also a good place to get seedlings off to an early start in Spring. Don’t forget to protect them from frost on cold nights, especially if they are behind thick curtains, and keep the soil moist with a fine spray mist.
A pantry or a cupboard where you can store preserved food is a way of extending the season and enjoying the harvest long after the fruits have gone. Bottling or canning is a useful skill to learn, as is making jam, pickles and chutneys and also fermentation.
Zone 1 can also include the area immediately outside your house. Consider how to make best use of this space. Take advantage of the fact that it is so close and you pass it regularly. It’s worth taking time to sit or stand at the door as you make your plans.
Zone 2: The home orchard zone.This zone is fairly near the house, so is easy to keep an eye on things. You might not go here every day, but perhaps most days of the week. Think through what you want to grow that will need regular attention, such as vegetables, soft fruit and herbs.
Other components that need to be relatively close to the house include the worm bin or composting area, chickens and other small animals, the woodshed, tool shed and workshop. A greenhouse or polytunnel, and cold frames also need to be in this zone. You will learn more about these n the Aquaculture and Season Extension module.
This zone could have animal housing, rotational grazing, small pastures, cover crops, permanent raised beds, permaculture guilds, nitrogen fixers, pollinator attractors, grazing between rows, interplanting of vegetables, and ponds.
Use a big piece of paper to roughly map out zones 1 and 2 of your home system as it is today (a base map). Create a sector analysis map to understand the external influences on your home, make sure to include arrows showing the direction the physical sectors enter the space. Draw a zone map which describes how spaces are currently used either inside or outside the immediate living space.
Your current zone map could act as a real time inventory of your property, your activities and the things in it. Be transparent when creating the current zone map. Include the clutter, the chaos, and the things that are not working, and work toward eliminating those things in real life and in your dream scenario. Be sure to label the current zones.
This miniclass is excerpted from the Home Systems module of our double-certificate design course, taught by Crystal Stevens.
Crystal Stevens is an Author, an Artist/Art Teacher, a Folk Herbalist, a Regenerative Farmer, and a Permaculturist. Crystal is the author of Grow Create Inspire and Worms at Work, published by New Society Publishers. Crystal speaks at conferences and Mother Earth News Fairs across the U.S.. She has been teaching a Resilient Living workshop series for over a decade. She is the Garden Manager at EarthDance Organic Farm School in Ferguson, MO, where her husband, Eric Stevens, is the Farm Manager. They have two children and live along the rolling hills of the Mississippi River near St. Louis. Visit them at www.growcreateinspire.com, on social media @growcreateinspire and @earthdancefarms
Further reading on this topic:
Here is an article that describes how Maddy Harland, editor of Permaculture Magazine, transformed her site from grass to garden! Harland, Maddy. “How we made a garden of edible delights: monoculture to permaculture.” 9 July 2014. The Guardian
I highly recommend watching the Inhabit Film to greater understand the need for permaculture in our home systems. http://inhabitfilm.com/
#freepermaculture #permaculturewomen #foodnotlawns #thehomesystem #growcreateinspire
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