26 Jul Hort 300 Introduction to Horticulture Page 1Rev.
Hort 300 Introduction to Horticulture Page 1Rev. 3/2020Cosumnes River College Horticulture DepartmentHort 300 Introduction to HorticultureAssignment 12 Water and IrrigationWhat’s My Water Budget and Estimated Usage?You may need assistance from your instructor to find the correct information for your yard or area of interest! Begin this assignment early in order to communicate with you instructor if needed.Instructions: PLEASE CAREFULLY READ THIS ENTIRE ASSIGNMENT!Using information gathered from your garden / landscape and your instructor, you will calculate a water budget and estimated total water use for your landscape. For students that do not have a garden or landscape, please use an available local garden or landscape (a friend or neighbor, public park, or greenspace area, etc.)Follow the steps on page 2 to complete and submit your assignment. See an example on page 3.Definitions:Water Budget: (Maximum Applied Water Allowance) MAWA: The total, annual amount of water (in gallons) allowed for use in your landscape under the current Model Water Efficient Landscape Ordinance.Total Water Use: (Estimated Total Water Use) ETWU: The total, annual amount of water (in gallons) required by your landscape. ETWU is calculated for each hydrozone and then added together.Hydrozone: The distinctive areas of your landscape that are grouped by plant type and microclimate. These areas should be irrigated separately from each other based on water need for the specific hydrozone.Hydrozone Example: Each colored area is a hydrozone based on its microclimate (soil, sun exposure, etc.) and the water needs of the plant material in that location.SLA: Special Landscape Area. A special landscape area (hydrozone) refers to two situations for residential landscapes when people can use more water. The first instance is for edible gardens; specifically vegetable, fruit, and herb gardens. It must be specifically for edibles; it cannot be an ornamental landscape with just a couple of herbs. The second instance is for landscapes that use reclaimed water for irrigation. This water is supplied by the water district and will have a special connection for outdoor use only. Reclaimed water will not be connected to the house, and should not be used on edible gardens. Check with your water company if you are not sure if you receive reclaimed water.Hort 300 Introduction to Horticulture Page 2Rev. 3/2020Step 1: Identify a landscape area and divide it into no more than five (5) hydrozones as dictated by the microclimate and plants in the area. (See the hydrozone EXAMPLE on page 1); you do not need to submit a diagram.Step 2: Measure the area (you can just step it off) to estimate the square footage of each hydrozone and total square footage of the entire landscape.Step 3: Make a list of plants in each hydrozone. You do not need to list all the plants, just the primary plants that make up each hydrozone. Contact your instructor if you need help identifying plants; email picture if needed. You do not need to have the botanical names; common names will work. Each turf area will be one hydrozone. Also note if the hydrozone uses sprinklers or drip irrigation.Step 4: Find your annual evapotranspiration: Option 1: You can also find an estimated Annual ET by Location on page 86 in the text (Table 4.2). Option 2: You can email your instructor the city in which the landscape is located.For Sacramento and the surrounding areas, use 50 inchesStep 5: Determine the plant factor for each hydrozone in the landscape. Option 1: You can find plant factors for your area by going to WUCOLS and using the data base.If you choose to use the WUCOLS Data base, then use the following plant factors:High = 0.8 Moderate = 0.5 Low = 0.2 Very Low = 0.1 Option 2: You can email your instructor the name of the plants for each hydrozone, or a CLEAR picture of each hydrozone. Your instructor will email back the necessary information.Step 6: Calculate MAWA and ETWU using the following formulas:MAWA = Annual EtO x 0.62 x [(LA x 0.55) + (SLA x 0.45)]Annual EtO = Annual Reference Evapotranspiration in inches of water0.62 = Factor to convert inches of water into gallons of waterLA = Landscape Area; the total area of the landscape in square feet, including SLA, minus any hardscaping (patio, walk ways, sheds, etc.) Should include ALL plant-able space, even if it is not planted.SLA = Special Landscape Area0.5 = The allowable amount of Reference Evapotranspiration that can be replaced through irrigation.ETWU = Annual EtO x 0.62 x [((HA x PF)/IE) + SLA]Annual EtO = Annual Reference Evapotranspiration in inches of water0.62 = Factor to convert inches of water into gallons of waterHA = Hydrozone Area. The area of the hydrozone in square feet.PF = Plant Factor. The plant factor established for each hydrozone.IE = Irrigation Efficiency. For sprinklers use 0.71, and for Drip Irrigation use 0.8Step 7: Determine if your landscape needs to be redesigned to use less water and/or what you could or would do to improve water efficiency.Step 8: Save your information as a PDF and upload to CANVAS.See Assignment Example on the Next PageHort 300 Introduction to Horticulture Page 3Rev. 3/2020Assignment Example:My landscape is in the Elk Grove Area:Annual Evapotranspiration is currently 50 inches.My landscape has is 4300 square feet.Hydrozone Plants PF Size in Ft2 Irrigation (IE)1 Lawn Cool Season Turf 0.8 720 square feet Sprinklers 0.712 Shrubs and Trees Redwood, Pittosporum, Boxwood 0.6 1800 square feet Drip 0.83 SLA Vegetable and Herb Garden 1.0 495 square feet Drip 0.84 Planter Bed Crape Myrtle, Camelia, Clematis 0.4 650 square feet Drip 0.85 Shrubs and Trees Crape Myrtle, Blue Mist 0.2 635 square feet Drip 0.8Calculations:MAWA = Annual EtO x 0.62 x [(LA x 0.5) + (SLA x 0.5)]MAWA = 50 x 0.62 x [(4300 x 0.55) + (495 x 0.45)]MAWA = 31 x 2587.75MAWA = 80,220.25 gallons of waterETWU = Annual EtO x 0.62 x [((HA x PF)/IE) + SLA]Hydrozone 1 ETWU = 50 x 0.62 x [((720 x 0.8)/0.71) + 0] Hydrozone 1 ETWU = 25,149.30 gallonsHydrozone 2 ETWU = 50 x 0.62 x [((1800 x 0.6)/0.8) + 0] Hydrozone 2 ETWU = 41,850.00 gallonsHydrozone 3 ETWU = 50 x 0.62 x [((0 x 0)/0) + 495] Hydrozone 3 ETWU = 15,345.00 gallonsHydrozone 4 ETWU = 50 x 0.62 x [((650 x 0.4)/0.8) + 0] Hydrozone 4 ETWU = 10,075.00 gallonsHydrozone 5 ETWU = 50 x 0.62 x [((635 x 0.2)/0.8) + 0] Hydrozone 5 ETWU = 4,921.25 gallonsTotal Landscape ETWU = 97,340.55 gallonsConclusions:My landscape has an annual water budget of 80,220.25 gallons and uses 97,340.55 gallons. It is estimated that my landscape will use a little more than 17,000 gallons over my annual budget. To conserve water I would recommend reducing the size of my front lawn (hydrozone 1), and removing and replacing the high water using plants and trees from hydrozone 2. I can also improve my soil and use mulch to capture and hold as much water as possible. I will consider converting my lawn to subsurface drip to improve irrigation efficiency (which I actually did in 2015).
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.