Negative impacts on an ecosystem of large-scale monocultures of crop plants
Description
GCSE Biology (21: Human influences on ecosystems) Mind Map on Negative impacts on an ecosystem of large-scale monocultures of crop plants, created by Zoe CB on 30/03/2016.
Negative impacts on an
ecosystem of large-scale
monocultures of crop
plants
Use of chemicals
These chemicals are also toxic to wildlife, for example
some herbicides are more toxic to amphibians than
humans. Increased death of a certain species due to
the chemicals would unbalance the food chain and the
ecosystem itself.
Lack of diversity
The lack of a range of insect species means that
there are no biological controls to stop the
population from getting too large and damaging
other plants.
Lack of naturally provided nutrients
Soil degredation
Ground cover crops are eliminated,
meaning that there is no natural
protection against erosion from wind or
rain.
Water use
The lack of ground cover plants means that there is a lack of moisture
retention in the soil, increasing surface runoff, As the water isn;'t
absorbed, large amounts of water must be used for irrigation from lakes
and rivers, depleting natural water sources and affecting aquatic
ecosystems.