What does the term land degradation refer to?
Land degradation is the reduction or loss of the biological or economic productivity and complexity of rain—fed cropland, irrigated cropland, or range, pasture, forest or woodlands resulting from natural processes, land uses or other human activities and habitation patterns such as land contamination, soil erosion and …
What are the examples of land degradation?
Land clearance, such as clearcutting and deforestation. Agricultural depletion of soil nutrients through poor farming practices. Livestock including overgrazing and overdrafting. Inappropriate irrigation and overdrafting.
What causes 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 do you mean by desertification?
The United Nations’ official definition says desertification is land degradation in typically dry areas resulting from various factors, including climatic variations and human activities.
What is land degradation short answer?
Land degradation is defined as the temporary or permanent decline in the productive capacity of the land, and the diminution of the productive potential, including its major land uses (e.g., rain-fed arable, irrigation, forests), its farming systems (e.g., smallholder subsistence), and its value as an economic resource …
What is land degradation Brainly?
Land degradation is the decrease in the general nature of soil, water or vegetation condition, ordinarily brought about by the human exercises.
What are the four types of land degradation?
Soil degradation can be classified into four main types of degradation: water erosion, wind erosion, chemical deterioration and physical deterioration.
What is land degradation PDF?
Land degradation is defined as the long-term loss of ecosystem function and productivity caused by disturbances from which the land cannot recover unaided (Bai and others 2008). Land degradation occurs slowly and cumulatively and has long lasting impacts on rural people who become increasing vulnerable (Muchena 2008).
What are 3 causes of desertification?
The main causes of desertification include:
- Population growth – the population in some desert areas is increasing.
- Removal of wood – in developing countries, people use wood for cooking.
- Overgrazing – an increasing population results in larger desert areas being farmed.
What is the definition of drought and desertification?
Drought and its impacts can be exacerbated by human activities that are not adapted to the local climate and/or soil type. Land degradation is the process of turning fertile land into less or non-productive land. In extreme cases, in drylands, this is called desertification.
What is land degradation Class 10 simple definition?
Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable.
What is land degradation Class 8?
Ans: Decline in the productive capacity of land for some time or permanently is known as land degradation. Some of the measures that can be used or practiced to conserve our land resource are: (a) Adopting to the scientific techniques.