I think so. The elevation, slope and aspect influence the precipitation and the temperature.  These two factors will directly influenced the grassland.

I can say Yes! If your study area is in India, I would suggest you to use Survey of India toposheet to draw conslusions about the relationship between grazing land (Open scrub in SOI terminology) and Elevation (Contours).

Yes it does slope and in combination of other environmental factors does affect grazing area. You have to take in conside those factors in your analysis, such as temperature,precipitation ,soil types and among other factors 

ı think so. Especially I think that climate (humid and fall) more important. then elevation and aspect is important. maybe slope minor important...

Yes，I think so. It wil influence the grass species, because of difference on tempertue, wind speed, sunshine duration and water capacity.

I went to Qinghai in China before, and grassand in the diffenet side of the mountain even show huge differences, probablily because of the sunshine duraion. It's very interesting :)

Dear Partha,

Two days ago I was in Jhansi and I had a short visit to your institute. We could have met if I known you were there.

Your question could be formulated better. As I understood it right, it has to do with biophysical criteria affecting grasslands. In addition to what has been suggested, you need more detailed information. For example many colleagues mentioned precipitation. In fact annual precipitation does not say much. You need information on the intensity and spread over time. Similar for climate. Slope is crucial as it is strongly correlated to soil and water erosions. In addition aspect is usually neglected though it has great influence on the ETP as direct sun light soil gets drier quickly and natural vegetation will not be the same for South facing versus North facing. You need to also consider species composition, any invasive species coming, past disturbance, etc. Grassland ecology is complex as several factors either linked to environment or to human affect condition and trend.

Best, Mounir

Dear Mounir Sir,

                            Thanks for your kind suggestion