Agricultural soil science

I believe the Rapanui walked the statues 11 miles across what is now known as Easter Island. The Rapanui are peoples who lived in the island. The only information we know from the Rapanui about the statues walked across the island. The first reason I believe the statues were rolled on wooden sledges is because that is so much easier for a human than to pull them with ropes. "In 1998, a group of scientists put the sledge-and-roller theory to the test, using a 10-ton replica of a statue and 70…

While determining the differences between two different sagebrush communities and the north/south aspect, I accept my hypothesis that there was a differences in the plant cover in a sagebrush community that has seen burning, and/or on a north aspect. The data shows that there are clear differences between the burned/unburned sites and the north/south aspect sites. The only time that two of the sights had the same amount of plant cover of the same plant community was in Figure 1 where there was…

Salt water marsh provide ecosystems to many type of wildlife. But in the past two centauries there has been many dangers to the marshes. Rising sea level has became a major problem for today’s environment, particularly the pacific coast marshes and wetlands, according to Dr. Glen Macdonald’s research. He has done research on how the sea level rising is affecting the marshes. His research has been focused on the 14 salt water marshes along the pacific coast, ranging from Tijuana to the northern…

Interpretation Acid-mine drainage occurs when sulfide-bearing waste rock and tailings come in contact with waters containing dissolved oxygen. The resulting oxidation reactions release associated metals and acidity, which may impact the biological community and significantly lower the pH of downstream waterways (Army, 2010). Released metals that are transported downstream may be removed from solution through precipitation of and sorption onto iron and manganese hydroxides. Attenuation of metals…

Introduction The agricultural industry is the key industry that feeds, clothes, and keeps the population of the world comfortable in their homes. Members of this large, yet dwindling industry are faced with the challenge of feeding a rapidly growing population that is expected to reach 8.5 billion people by the year 2030. The major component fueling the agricultural industry is the soil. The very outer layer of the earth’s crust is the very one thing keeping the population thriving. While some…

Organic or Conventional Gardening: Which Would You Rather Use? Everyday people are growing more and more concerned of where their food comes from. The push for more organic produce in local grocery stores poses the question if there are marked differences between organic and conventional gardening. With the recent increases in organic farming, people are flocking towards buying organic opposed to buying conventionally grown food. Many wonder if buying organic is really better for the consumer…

sizably smaller than fires before the 20th century, where almost 30 million acres burned. The sizeable difference with today’s fires is due to the intensity of which they burn (Dickman,16). Scientists at the Harvard school of Engineering and Applied Sciences, are predicting that by 2050, wildfire seasons will be three weeks longer and twice and smokey (Roberts,1). Severe storms and forest fires will increase due to gradual climate change in the coming years (Roberts,1). One study shows that…

practices, Roosevelt and Congress passed the Soil Conservation Act of 1935 to better outline the farming techniques to prevent a recurrence of the Dust Bowl. Roosevelt also ordered the Civilian Conservation Corps to plant a large belt of over 200 million trees from Canada to Abilene, Texas as a way to break the wind and keep the soil and water in the soil in its place. Not only this, but the Roosevelt administration made an effort to better educate farmers on soil conservation and technique to…

glanced around and found myself walking through the scene one by one. First, was the dirt, the place where every good thing comes from, and the often-unsung hero of nature. I say hero because what happens in nature that does not somehow begin with the soil in that environment? New Brunswick is especially interesting because it is not like everywhere else. The dirt here always has a reddish tint to it and while I am not exactly sure why, I know it has something to do with…

A detailed description of soil locations, textures and physio-chemical properties can be found in Sections 2.3.1(page 41) and 3.3.1(page 56). We selected four types of soils out of seven types of soils, namely MGA, KBA, TAA and DUA. Key soil characterisation of these four soils is summarised in Table 4.2. The reason why these four types of soils were chosen for this chapter was that they had distinct soil parameters in terms of total organic carbon (TOC), Fe oxide, Al oxide, pH which have been…