Ces 210 1nd Edition Lecture 12 Current LecturePRINCIPLES FROM PREMACULTURE- Use if biological resources before reverting to technological solutions - Everything gardens (roofs are watersheds, fences act as windbreaks, birds spread seeds, woodlots create their own microclimate…) in permaculture we see it as an opportunity for increasing sustainability of the design- Concentrate resources (time, money, knowledge, soil fertility) focused effort, productive gardens, nourished soul, peaceful community are possible when resources are not spread too thin- It teaches us how to grow food, restore degraded landscapes and ecosystems, catch rainwater, build communities, creative alternative economies, build natural homes, and disconnect from wasteful lifestyleECOSYSTEMS- Ecosystem-functional system of complementary relations between living organisms and their environment- Delimited by arbitrary boundaries in space and time—appear to maintain steady yet dynamic equilibrium- Made up of biotic and abiotic factors- Biotic-living organisms; abiotic-soil, light, moisture, temperatureAGROECOSYSTEMS- Human manipulation and alteration for agriculture- Different from natural ecosystems- Energy flow-input from human sources and not self-sustaining- Nutrient cycling- Population regulating mechanismsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Stability- The same in processes, structures, and characteristics- Agro ecosystems can be designed to become as close as possible to natural ecosystems in terms of species diversity, nutrient cycling, habitat homogeneitySUSTAINABLE AGROECOSYSTEMS- Try to mimic natural ecosystems as much as possible and yet maintain a harvest output- Energy flow-less dependent on nonrenewal; try to keep the energy flows closed within the system and translate in harvestable product; population regulation makes use of array of natural mechanisms; reduced human inputs for