Land degradation is currently a major concern in South Africa. … Soil erosion and veld degradation are continually being depicted as acute problems, and overpopulation, overstocking and poor agricultural practices are viewed as the major causal factors.
What are the main causes of land degradation?
Taking the form of desertification, deforestation, overgrazing, salinization, or soil erosion, land degradation can be caused by biophysical factors, such as the natural topography of an area or its rainfall, wind, and temperature; and unsustainable land management practices, such as deforestation, soil nutrient mining …
What are the five main causes of land degradation?
Nine Main Causes of Land Degradation are as follows:
- Deforestation: Forests play an important role in maintaining fertility of soil by shedding their leaves which contain many nutrients. …
- Excessive Use of Fertilizers and Pesticides: …
- Overgrazing: …
- Salination: …
- Water-logging: …
- Desertification: …
- Soil erosion: …
What is the major cause of land degradation in Africa?
In short, the heart of the problem is that the natural resource base of Africa is being degraded and destroyed at a rate which will soon make food and agricultural production un-sustainable. Poverty, coupled with increasing population pressure, is the biggest single cause of this degradation.
What causes soil degradation in Africa?
The major cause of soil degradation in Africa is uncontrolled and excessive grazing in the savanna regions followed by deforestation and the use of inappropriate and extractive farming practices.
What is an example of land degradation?
Examples of soil degradation
water erosion (includes sheet, rill and gully erosion) wind erosion. salinity (includes dryland, irrigation and urban salinity)
Which two factors are responsible for land degradation?
Some of the factors responsible for land degradation are (i) loss of vegetation occuring due to deforestation (ii) unsustainable fuel wood and fodder extraction (iii) shifting cultivation (iv) encroachment into forest lands (v) forest fires and over grazing (vi) non-adoption of adequate soil conservation measures (vii) …
What is land degradation in simple words?
Land degradation—the deterioration or loss of the productive capacity of the soils for present and future—is a global challenge that affects everyone through food insecurity, higher food prices, climate change, environmental hazards, and the loss of biodiversity and ecosystem services.
What is the impact of land degradation?
Its impacts can be far-reaching, including loss of soil fertility, destruction of species habitat and biodiversity, soil erosion, and excessive nutrient runoff into lakes. Land degradation also has serious knock-on effects for humans, such as malnutrition, disease, forced migration, cultural damage, and even war.
How can we solve the problem of land degradation?
- Proper management & grazing land.
- Planting of shelter belts in desert areas.
- Control of overgrazing.
- Stabilization of sand dunes by growing theory bushes.
- Proper management of waste lands.
- Control on mining activities.
What is land degradation and what causes it?
Land degradation is a global problem largely related to agricultural use, deforestation and climate change. Causes include: Land clearance, such as clearcutting and deforestation. Agricultural depletion of soil nutrients through poor farming practices.
Which country has the most land degradation?
The analysis reveals that Asia and Africa bear the highest costs of land degradation, estimated at US$84 billion and $65 billion per year, respectively.
How can we prevent land degradation?
5 possible solutions to soil degradation
- Curb industrial farming. Tilling, multiple harvests and agrochemicals have boosted yields at the expense of sustainability. …
- Bring back the trees. Without plant and tree cover, erosion happens much more easily. …
- Stop or limit ploughing. …
- Replace goodness. …
- Leave land alone.
How much percentage of land in Africa is considered as degraded?
In Africa, about 28 percent of the land is being degraded and this costs the continent an estimated 56 billion euros annually.
How is desertification affecting Africa?
Desertification affects about 46 percent of Africa. … Agriculture in Africa tends to result in low productivity, as most of the land is characterized as a semi-desert. Clearing the land of trees also reduces the structure of the soil. Coupled with wind erosion, the topsoil blows away and leaves a desert-like land.
How is soil being eroded in Africa right now?
The Problem Today
Currently, 40% of soil in Africa is degraded. Degraded soil diminishes food production and leads to soil erosion, which in turn contributes to desertification.