Table of Contents
How does erosion affect crop yield?
Soil erosion can reduce crop yields by reducing soil organic matter, water hold- ing capacity and rooting depth ( I , 10, 12). Other erosion-related factors affect- ing productivity include reduction of plant nutrients, degradation of soil struc- ture and alteration of clay content.
How does soil erosion affect crop production?
Soil erosion inhibits our ability to grow nutritious food.
By decreasing the nutrients available to plants as well as the space for them to put down roots, soil erosion can decrease crop yields by up to 50 percent. In addition, crops that do grow tend to be of a lower quality: misshapen, smaller and less nutritious.
How does soil erosion affect plants growing in the soil?
Soil erosion leads to degradation of soil structure leading to hard , compact and clodddy soil. This results in poor soil aeration. Water holding capacity and soil permeability are also decreased. Decreased aeration results in less oxygen availability for plant roots.
What is the effect of soil erosion?
The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.
What is soil erosion What are the main causes of soil erosion?
Basically, there are two main causes of soil erosion – wind and water. When the topmost layer of the soil is loose, it becomes vulnerable to the natural forces of wind and water to blow the soil particle away. This loss of topsoil particles is soil erosion, as it is an almost irreversible loss.
Which soil properties influence the plant growing and how?
Some of the soil properties affecting plant growth include: soil texture (coarse of fine), aggregate size, porosity, aeration (permeability), and water holding capacity. An important function of soil is to store and supply nutrients to plants.
What are physical properties of soil?
Physical properties of soil include color, texture, structure, porosity, density, consistence, aggregate stability, and temperature. These properties affect processes such as infiltration, erosion, nutrient cycling, and biologic activity.