Barnali: The discussion on this subject is a very valid one. I have been following some of the threads where somebody seems to be happy saying that because somebody is bringing down the trees and cultivating it, "we do not live in the jungles any more"
Then there are these road widening projects mentioned, where they fell trees even before doing an afforestation project. Consequences of loosing our forest cover have been very apparent recently. The climate has changed. If we do not stop this masacre of the greenery we might me moving towards desertification. Majority of the growing population use trees as firewood. The Per capita trees have to be assesed to understand if we have enough trees to sustain the population and should more tree corridors be created. Should agro-forestry be initiated? Then there are scruplous wood traders that find permissions to harvest trees by paying under the table. I at least know one such case personally. This was around 2001 when there was a moratorium on cutting trees, this guy was able to get permission under the table. How they do it? I have no clue. One difficulty to asses extent of forest is the non-availability of cloud free satellite imagery for most of the time of the year. By the time a set of cloud free imageries are found and put together to make a larger map covering the entire state and the image proccesed. A lot of time would elapse, and many more land cover changes would have taken place by then. NASA has a system by which they do provide cloud free 16 day NDVI (Normalized Vegetation Index) satellite imageries of the world, by doing some processing. The scale is coarse at 250 m pixel resoultion. This simply means that one pixel (smallest cell) or dot in the picture is the net sum of the greenery measure of 250 square m ( a quarter square mile). This is the map which I provided yesterday. I think this is a good data set to monitor forestry and agricultural trends. Mohan R. Palleti > lots of endless discussion on this topic, > > i am from the general mass and i knw that sitting smwhere outside assam > and doing a 9 to 7 job, do not allow you to do smthing for the same. i am > sorry it might sound very harsh, but the feeling is from inside, is there > anybody who seriously think about the same, we are on the verge of loosing > the greenary.. the changing climate (without rain) has already given a bad > sign.. it might sound funny also but i am sure that unless we educate the > people to plant even a single plant,nobody thinks seriously, and like me, > most people think that lots of people are there to think about our > environment.. but what is the fact? > > sorry guys if i am hurting anybody.. > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > <*> To visit your group on the web, go to: > http://groups.yahoo.com/group/assamonline/ > > <*> Your email settings: > Individual Email | Traditional > > <*> To change settings online go to: > http://groups.yahoo.com/group/assamonline/join > (Yahoo! ID required) > > <*> To change settings via email: > mailto:[EMAIL PROTECTED] > mailto:[EMAIL PROTECTED] > > <*> To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > <*> Your use of Yahoo! Groups is subject to: > http://docs.yahoo.com/info/terms/ > > > > _______________________________________________ assam mailing list [email protected] http://assamnet.org/mailman/listinfo/assam_assamnet.org
