The Effects Of Sallinity On Pant Life

2185 Words 9 Pages
Abstract
The investigation was conducted see the effects of salinity on pant life more closely, with series of plants watered with different percentages of salt water. To determine how different salinity levels effect the plants growth, and also observe the other effects, if any, that may occur to the plant. The experiment was set up and each plant was watered with different levels of salinity, and measurements of the height and number of leaves was taken twice a week. The results concluded that the plant watered with the tap water had the best development, while the ones watered with salinity had significant difference in plant development. This concludes that salinity has effect on plant growth and development.
Introduction
Dryland salinity
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Resulting in the loss of biodiversity (nsw.gov, 2013). Promoting serious environmental issues, at the loss of vegetation it increases the risk of erosion increases, and soil quality deceases causing the plant life to reduce. For irrigated lands salinity affects around 50% of the land (Assmann, 2013), this means not only native plants are affected but also agriculture, this is because the salinity obstructs the nitrogen uptake, affecting the crops as it slows growth rate and stops plant reproduction (qld.gov, 2013). With salinity having such damaging affects to the environment, this affects not only the biodiversity. It causes animals to find a new ecosystem, as their habitat unusable, unable to grow and sustain life. Salinity affects humans, as the soil quality decreases making the plants unable to survive, the amount of crops decreasing. It is clear that salinity is detrimental to the …show more content…
On average the trial 1’s controlled grew on average 3cm per week, 1% averaged 1.8cm per week, 2% averaged at 0.775cm per week and 3% had the average of 1.85cm per week. In comparison to trial 2’s height measurement, the controlled grew on average 4.475cm per week, 1% averaged 2.925cm per week, 2% averaged at 1.325cm per week and 3% had the average of 0.875cm per week. In the results, the line graph of the stem length, supports the prediction and also displays how the salinity affects the plant’s growths, with the controlled plants flourishing and with the 3% starting to shrink in trial 2. In trial 2, the controlled plant started to grow rapidly, as seen in the stem length graph, additionally, the plant may have started to germinate or weeds were starting to grow (appendix 2). By week 3 (appendix 2), 3% in both trials were starting to lose the turgor pressure, and was losing its colour, from a bright green, to a dull green to brown. In the data (appendix 1), it can be seen that 3% trial 1 started to shrink in week 3, losing 1.6cm by Friday and losing an additional 0.2cm by week 4.Analysing the results, the more saline the water, the less the plant grew, this would be as the saline water reaches the surface, when it within two metres of it, the water evaporates and leaves behind salt (nsw.gov, 2013). High salts in the soil has the consequences of high osmotic

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