4.Discussion

               From the data collected, it is clearly found that the plants with the water impounding method(plants 3 & 4) survive longer than the plants in just the soil(plants 1&2). It is, however, that the plants planted in strips (plants 2 & 4) survive longer than the plants in random placement(plants 1&3). (Fig 3.1 & 3.2) This suggests that the best way to prevent desertification is to plant plants in strips and with the water impounding method.

               The number of plants and stalks surviving shows that the approach which that the plants are in is effective, so the higher the number of plants and stalks surviving, the more effective the approach. Thus, plant 4 have the most number of plant and stalks still surviving making the approach in plant 4 the most effective which is planting the plant in strips and with the water impounding method.

               We predict that the container where both strip planting and water impounding methods are used will be the most efficient to decrease desertification as by using striping planting we can reduce overcrowding so that the plants will not need to compete for things such as air, space, water and nutritions.

             Using water impounding the plant's roots will eventually grow towards the water thus it can get sufficient water to survive the hot weather on the dessert as the water will also not be able to evaporate into the surroundings as it is trapped underground.

               We could have improved in our experiment. There was not enough soil for all the four boxes and that we could use a bigger container so that the strip planting will be more effective as there is more space to ensure that overcrowding will not occur.

No comments:

Post a Comment