Contamination precautions - use weed wand lid to prevent spills and herbicide contact with non target plants and waterway - cleaning of clothing and equipment to stop poisoning of non target species and stop spread of CCC - removal of unwanted cut plant material 3. Worksite document developed including approved intended works. Advertised on site and possibly local paper. 4. Effective communication.
Based on your data, which type of soil do you think is best for agriculture? Explain your answer. Loam would be the best kind of soil to plant crops in because it is permeable but it takes low amounts of water to irrigate the soil. Farmers often have problems with soil erosion when they clear their fields after the growing season. Soil type is one factor that influences erosion.
| Soil Erosion | Tree major practices | Rosa Flores 2/18/2013 | Three major practices that expose soil to erosion and how they can be corrected. Soil erosion is the loss of soil caused by particles being carried away by wind or water. Erosion moves the smaller particles first and hence degrade the soil to a coarser, sandier, stonier texture. The major causes of soil erosion are over-cultivation, overgrazing, and deforestation. They are creating problems to create a more sustainable society but it can be corrected.
When there is rain the forests holds a lot of rainfall to the soil through roots of plants. The water then sinks deeper in the ground and replenishes the supply of the water table. If there was the removal of these forests then water from rain would flow simply through the soil surface and not be retained. Another effect may be the water from rain will not stay in the soil at all and the process of evaporation would immediately set in therefore not replenishing water table. This would lead to wells drying up.
The Cudgen soil conservation project is one of the most recent projects. The project is run by the Tweed Shire Council and Land Care, the aim of the project is to work with land holders to keep the soil on the paddocks. The project includes minor modifications to the interface between paddocks and drainage lines. Berms along drainage lines direct runoff into small settling ponds which slow the flow, giving the muddy water time to settle out. Farmers can then retrieve the soil that would have otherwise ended up in downstream waterways (Cudgen
To test pH, cut off a strip of pH paper and press it into the soil. Wait a minute and then take it out. Record the color and if it is not visible, wipe it on a towel until you can properly record the color. (7. was exempt) Data: Test Observations/data Soil collection Collected in a patch of land with vegetation- grass and clovers. It had recently rained.
‘Soft engineering is a better river flood management scheme than hard engineering,’ Discuss this view Soft engineering works with natural processes, it works with the environment and is often sustainable whereas hard engineering works against natural processes – controlling the environment. An example of soft engineering is naturalisation which is an attempt to alter natural geometry of a watercourse. For example planting trees – trees are planted near a river this means there Is greater interception of rainwater and a lower river discharge. An example of where naturalisation has occurred in the River Rhine where they are dredging clay out of flood plains creating a natural flood plain. An example of hard engineering is river straightening, this works by creating a smoother channel for faster flow to get water out of an area as quickly as possible.
Compare the benefits of growing GM seeds for crops with the potential negative consequences of using them? The benefits of growing GM seeds for crops is that the seeds are more resistant to stress and the crops can overcome pest outbreaks and reduce the danger or crop failures. The crops can endure severe weather such as frost, extreme heat or drought. Now the negative side effects of the GM products is for example the wind blowing to different fields were other farmers may prefer not to use enhanced seeds. They are modified with herbicides and pesticides so the uncertainty of health consequences of humans consuming the food grown by these seeds exists.
It is also a weed suppresser to prevent other weeds from growing because it grows so fast and densely, it blocks out sunlight to other weeds that are trying to grow. This allows farmers to use hemp as a replacement for herbicides and reducing toxins into the ground and surrounding water sources. Hemp can be used to replace petroleum and plastic products and are still biodegradable so it reduces the amount dumped into landfills. Since hemp can be used to replace gasoline and petroleum essentially replacing oil this reduces the environmental risks and impacts of oil drilling. This is a major environmental impact made when off shore drilling accidents happen made seen to the public by the BP accident in April of 2010 where 200 million gallons of crude oil was “spewed” into the ocean.
One of those is runoff, where a continuous layer of water runs down the cliff face, it will pick up particles of silt and clay as it flows downward. This is due to the lack of vegetation to anchor the soil down. Sub-aerial weathering happens dominantly with less resistant rock such as clay. This is being stopped with coastal defences, which stops the cycle of coastal erosion. The type of processes which shape the coastal landscape all links together in a cycle.