Hi Gopakumar,

For entire forests you would probably need some remote sensing application. I have written an article on how you can use a SFM1 Sap Flow Meter or PSY1 Stem Psychrometer to monitor the health of a tree and to assess whether it is actually dead:

http://www.ictinternational.com/casestudies/when-is-a-plant-actually-dead

http://www.ictinternational.com/products/sfm1

http://www.ictinternational.com/products/psy1

Anderegg et al wrote a great paper on this topic (see attached).

Michael

Article Not all droughts are created equal: Translating meteorologic...

Hi Gopakumar,

Good question! On some stage, I suggested that tree canopy is getting more transparent in response to adverse climate conditions. You can try to monitor that using SAR data, and in particular a DSM produced using InSAR technology or any other active RS system. Here is a link to my paper on that topic: http://isprsserv.ifp.uni-stuttgart.de/proceedings/XXXVII/congress/2_pdf/2_WG-II-2/07.pdf

Now, I've been runing an in situ experiment to confirm that.

Best Regards

Kaz

Thanks Dr. Micheal and Dr. Dr. Becek. Let me put it more specific. May I know if I can have a set of plot based investigations in tropical forest areas with very specific geographical and ecological peculiarities (like an evergreen or moist deciduous patch) and find out their forest health. Based on the generated data, it must be possible to suggest changes in the current management interventions?