2010; Fig. Oil spills can be deadly to animals. There is a common myth that deserts are extremely sensitive to perturbation. All rights reserved. In addition, high fertilization and insecticide levels are needed to keep the courses green (Wheeler and Nauright 2006). Soil salinization in northwestern China affects about 2 million ha, which makes up about one-third of the saline area of China (Cui and Shao 2005). Farming becomes more intensive which means the land has less chance to recover causing it to become infertile, exposed and at risk of erosion; and. Golodets et al. What are the economic and environmental issues of energy production? However, expansion was particularly rapid during the next 13 years, when the area of irrigated land in Central Asia reached 9.4 million ha, showing an increase of 70% for the region as a whole. Interestingly, Opuntia ficus-indica occurs in semi-arid areas of the Middle East but does not invade beyond the livestock maintenance areas (pers. Sustainability | Free Full-Text | Carbon Footprint Analysis of Ice During the next 5-year period, it increased at a rate of over 1% and from 1970 to 1975 it was 2% per annum (Zonn 1993). Cutting down trees and littering have a negative effect on animals and plants. This is consistent with Hardins (1968) tragedy of the commons model, which holds that in a communal system, each person stands to benefit by one animal for each one owned but the costs are shared by all, leading to the ultimate degradation of the lands. WebPositive Side of Columbian Exchange- One of main impact of Columbian exchange was the huge exchange of What is chemical and mechanical weathering? What are the effects of economic development in Nigeria on quality of life? As of 2015, the Sahara expands southward by 30 miles every year. There is evidence that deserts have existed for million of years on this planet. These are usually caused by direct human intervention. But even small changes in temperature or precipitation could drastically impact plants and animals living in the desert. What does scenery formed by erosion look like? Sustainable development in the desert The Great Green Wall.
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