Desert greening other effects), if the planted area is large enough. The soil of the Thar Desert in India remains dry for much of the year and is prone to wind erosion. High speed winds blow soil from the desert, depositing some on neighboring fertile lands, and causing shifting sand dunes within the desert, which buries fences and blocks roads and railway tracks. A permanent solution to this problem of shifting sand dunes can be provided by planting appropriate species on the dunes to prevent further shifting and planting windbreaks and shelterbelts. These solutions also provide protection from hot or cold and
Thar coalfield over more than 9,000 km. comprise around 175 billion tonnes sufficient to meet the country's fuel requirements for centuries. Sindh Engro Coal Mining Company mine's coal from the field. The Thar coalfield is located approximately between Latitudes 24°15'N and 25°45'N and Longitudes 69° 45'E and 70° 45'E in the southern part of Sindh Province in the Survey of Pakistan topo-sheet Nos. 40 L/2,5 and 6. Based on available infrastructure and favourable geology, the Geological Survey of Pakistan selected four blocks near Islamkot for exploration and assessment of coal resources. The blocks with names, area and coordinates are given in Table-1:¬