Land & Life
Submit hard copy in class
Problem Set 3
DUE February 14, 2012
Your garden crop H2O use is 0.2/day. Growing season is 180 days and rooting depth is 5 feet.
How much additional irrigation H2O do you need if average g
Land and Life SSC 185 Pretest 2 1. Briefly explain why soil biological activity is so important to agricultural productivity and, thus, world food security.
2. Chemical and physical weathering of parent materials (rocks) is critical to the formation
PROBLEM SET 3 SSC185 Due Tuesday Feb 19 There is approximately 1,350,000,000,000,000,000 cubic meters (1,350 x 10 15 m3) of water in the oceans. This also represents a volume representing 7600 miles x 7600 miles x 5 miles deep. How many gallons of wa
Global warming: Impending doom? 'One degree and we're done for' 27 September 2006 From New Scientist Print Edition. Fred Pearce "Further global warming of 1 C defines a critical threshold. Beyond that we will likely see changes that make Earth a d
Global Climate Change:
Days at the Park can be Globally Fun
By Alexis Wetherill
(Grade me out of 30 points. Chapter 4: Global Climate Change, From Discussing
As the parents are watching their children play at the park, they begin to lose
LAND AND LIFE
There are 17 essential plant nutrients.
a. Identify 4 macronutrients (other than C, H, O)
Nbk calcium sulfur copper magnanies nickel
b. Identify 4 micronutrients
c. Name two compounds that plants readily obtain C, H, O
Land and Life
1. Describe three reasons why biological activity in soil is essential to world food security.
2. Similar soil profiles develop under similar soil forming factors. The five soil forming factors are:
3. Circle the correct answer
LAND AND LIFE
1. There are 17 essential plant nutrients.
a. Identify 4 macronutrients (other than C, H, O) and 4 micronutrients
2. If a plant is showing signs of necrosis, what do the whole leaves or parts of leaves look like?
3. Define Cati
SSC185 Land & Life
Problem Set 5 (INDIVIDUAL ASSIGNMENT)
DUE April 3, 2014
1. You have an 8000 ft2 lawn that needs 2 lb N/1000 ft2.
a. Calculate how many 50 lb bags of 20-5-10 you need to buy and apply.
b. How many lbs/1000 ft2 of P2O5 and K2O are you als
SOIL AND PLANT NUTRIENTS
ESSENTIAL PLANT GROWTH FACTORS
Plant growth requires sunlight (energy), H2O, CO2, and O2 .and SOIL !
ROLE OF SOIL IN PLANT GROWTH
physical support .roots anchor plant to maintain upright stature so leaves can intercept sunlight
SOIL EROSION AND CONSERVATION
The nation that destroys its soil destroys itself.
F. D. Roosevelt (1937)
SOIL DEGRADATION EFFECTS ON SOIL PRODUCTIVITY
& FOOD PRODUCTION
1. Erosion of surface soil
physical loss of OM-rich topsoil
2. Oxidation of OM
By 2050 Warming to Doom Million Species, Study Says
John Roach for National Geographic News Updated July 12, 2004 By 2050, rising temperatures exacerbated by human-induced belches of carbon dioxide and other greenhouse gases could send more than a
Global warming could increase U.S. death rate
By Amy Norton Mon Jul 2, 2007 5:58pm BST NEW YORK (Reuters Health) - An increase in summertime heat waves from global warming could mean more deaths among Americans each year, a study by Harvard resea
NAME_ PROBLEM SET 4 SSC185 Due Thursday February 21 Rainfall occurs at 0.5 inches/hour. Infiltration rate is 0.25 inches/hour. Calculate the gallons of surface water runoff/hour over a 1 acre area. There are: 43,560 ft2/acre 7.48 gallons/cubic feet o
Land and Life
SSC185 Spring, 2008 COURSE OUTLINE 1. World Food Security 2. Global Hydrology 3. Soil Water 4. Soil pH 5. Soil Formation 6. Soil Biology 7. Soil and Plant Relationships 8. Soil Conservation 9. Land Use 10. Food Production Systems
SSC185 Global Warming Questions DUE DATE April 17, 2008 Use William Rudiman (Scientific American) and John Daly (The Hockey Stick)papers to answer these questions
1. Describe precession and its influence on global climate.
2. What two gases discus
SSC185 Land and Life
1. Identify a favorite (not a requirement) food crop to explore how it is produced, processed, and marketed to the grocery store. Examples could be: Corn Wheat Broccoli Asparagus Wheat Barley Avocados Almonds Etc
SSC185 Problem Set 5 Due April 15, 2008 1. You have a 9000 ft 2 lawn that needs 2 lb N/1000 ft 2. a. Calculate how many 50 lb bags of 28-3-12 are needed.
b. How many lbs/1000 ft2 of P2O5 and K2O are also you applying?
2. A farmer wants to grow 125
Global Warning for Global Warming
May 5, 2007 Environment-Outdoors We are exploiting our environment in order to improve our lives. But are we actually improving our lives? Global warming has proved us wrong. From freakish weather, to inexplicabl
Beyond the point of no return
It's too late to stop climate change, argues Ross Gelbspan - so what do we do now? Posted by Guest author at 4:03 AM on 11 Dec 2007
This is a guest essay from Ross Gelbspan, who's retired from a 30-year career as an e
Panel: Global Warming a Threat to Earth
Apr 6, 2007 7:16 AM (ET)
By ARTHUR MAX BRUSSELS, Belgium (AP) - An international global warming conference approved a report Friday warning of dire threats to the Earth and to mankind - from increased hunge
Global Warming - 5 Facts By George Christodoulou Article Source: http:/EzineArticles.com/?expert=George_Christodoulou Global warming is happening and some people still think its not happening which is just fine, but even they have to admit the cli
Global warming could mean more heart problems, doctors warn
The Associated Press Wednesday, September 5, 2007 VIENNA, Austria: Global warming may be forcing polar bears southward and melting glaciers, but it could also have an impact on your hear