Impact of agriculture：練習題

The overuse of fertilisers containing nitrate ions, \( NO_{3}^{-} \), can lead to which environmental problem when they are washed into nearby water bodies by surface runoff?

Excessive use of insecticides in a monoculture system can lead to the "pest resurgence" phenomenon. What is the primary cause of this impact?

Define the term arable farming as it relates to agricultural systems.

Explain how the overuse of fertilisers in agriculture can lead to the degradation of nearby water bodies.

Explain how monoculture practices contribute to the rapid exhaustion of mineral ion content in the soil.

(a) State the primary purpose of using fertilisers in modern agriculture.
(b) Explain how the overuse of fertilisers can lead to the contamination of nearby water bodies.
(c) Briefly describe the impact this contamination has on aquatic organisms.

In many arid regions, large-scale irrigation is necessary for crop growth.
(a) Explain the process of salinisation that occurs due to the mismanagement of irrigation.
(b) Describe how waterlogging can also occur in these systems and its effect on plant roots.