Question

10 point on resources conservation​

Answer 1

Answer:

Resource Conservation

Resource conservation means that those resources on which sustainability depends are conserved and even enhanced by agronomic management. Soil organic matter is a good example of an ecosystem resource that is easily reduced without effective management. Soil organic matter declines rapidly in almost all cropping systems following initial cultivation – typically to 40–60% of original values within a few decades. However, soil organic matter is a valuable resource, providing habitat and energy for soil organisms, a soil structure favorable for plant growth and water retention, and a chemical structure favorable for nutrient retention (Robertson and Grandy, 2006).

The loss of soil organic matter is often associated with a need for greater external inputs. Cropping practices that conserve or enhance soil organic matter buildup will invariably enhance the environmental and often the economic sustainability of cropping systems. Crops grown in high-organic matter soils have a better water and nutrient environment than similar crops grown in soils that are depleted in organic matter, and thus they may require fewer external inputs for the same productivity. Additionally, less soil erosion and lower runoff from high-organic matter soils better protects downstream environments from agronomic impact. Therefore, cropping practices that conserve soil organic matter can be considered more sustainable than those that do not.

Often, however, there are trade-offs that require any specific conservation effort to be evaluated in the overall context of sustainability. For example, conservation tillage typically slows or stops soil organic matter loss and thus can be considered a resource-conserving, sustainable cropping practice. However, tillage controls weeds in cropping systems, and in the absence of tillage weed control is typically achieved with herbicides, which have environmental and economic costs different from those of tillage. Is the maintenance of soil organic matter as sustainable in light of a more intensive reliance on herbicides? Ideally, such trade-offs can be minimized. For example, winter cover cropping can also reduce soil organic matter loss and additionally can reduce nitrate leaching and suppress weeds, without the need for additional herbicide (Snapp et al., 2005). Each cropping practice must be evaluated in a whole-system context to adequately evaluate its contribution to a system's sustainability.

Answer 2

1) Natural resources refer to substances being available to us by nature for economic gain.

2) Minerals, water, sunlight, natural vegetation are examples of natural resources.

3) It is our responsibility to conserve natural resources so that they can be used for a longer period.

4) The continued exploitation of natural resources has led to a major imbalance in nature.

5) Conservation of non-renewable natural resources like fossil fuels, coal is essential due to their limited presence in nature.

.6) The burgeoning population has increased the rate of exploitation of natural resources.

7) We have to limit the consumption of natural resources and should try to be dependent on renewable resources.

8) Conservation of natural resources like trees and water leads to a pollution-free environment.

9) If we continue to exploit the natural resources, survival on planet earth would be a challenging task.

10) Governments, civil communities should take effective actions for conserving natural resources for a better future.