Mohammed:

This link should prove useful:

http://www.sciencedirect.com/science/article/pii/S1877042813043036

Best

Syed

please check attach file:

The lower Algerian Sahara is experiencing an unprecedented urban growth, causing a socio-spatial upheaval and an ecological imbalance of oasis ecosystems that are embodied in the detachment of the palm trees from the urban areas. .This detachment actively participates in the increase of the Urban Heat Island, as well as the over-urbanization on the account of farmlands. Hence the abundance of palm groves, participates in the activation of desertification. Date palm tree plays a pivotal role in the conditioning of atmosphere and purification of air from dust particles, in addition to its enrichment with O2 molecules.

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0ahUKEwjorKHWpubRAhWMMo8KHYbuAEkQFggrMAM&url=http%3A%2F%2Fwww.entomoljournal.com%2Fvol3Issue4%2Fpdf%2F3-3-105.1.pdf&usg=AFQjCNHGogzTQ2sabR8pI7uQEbruAuJAww&sig2=M6tN1RzvhbsyqDkEGPwVvA

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&cad=rja&uact=8&ved=0ahUKEwjorKHWpubRAhWMMo8KHYbuAEkQFgg7MAU&url=http%3A%2F%2Fwww.ajol.info%2Findex.php%2Fajb%2Farticle%2FviewFile%2F115765%2F105331&usg=AFQjCNFNWWG33j67XmstnwtRF44YRlI6Nw&sig2=zS2sSHsK4Iof2CIXjZydyw

Thanks to all