Using Hyperspectral Data To Detect The Influence Of Acid Rain Stress On The Needle's Reflectance Of Masson Pine

The acid rain to harm to the natural system is a big problem to the world. In actually, the monitors for acid rain based on earth points, and by the way of chemistry analysis, were on search for the data. But the fact that search for a vast area data need a great of human labor and wealth. The acid rain effects on the forest by the course from changes the soil nutritious and the plant chlorophyll to changes the visible light and the plant spectrum. The paper is aim to make use of the principle of plant spectrum vary with acid gradient to research for a new way to acid rain.We separated the experiment to two parts, one is in the lab for 5 acid gradients and the other is out for two acid gradients about the mason pine spectrum data. Our experiment addressed on the ZJFU, and have collected for 2500 spectrum lines. We get the result that each acid gradients get a spectrum line concomitant. Our out experiment chose CQ and SZ as our data place. For the reason that we can get pH4.5 and pH5.0 acid rain gradients, and we had researched 1200 spectrum lines. We check it with statistics way for final data, and the result shows that the different acid gradients effects on the mason pine conclude different spectrum lines. At last, we pick the lab data concord to the out data , chose RE,YE,NIR,BE,RW,BR,VR,GR and AB ranges to detect, in order to set a model for the acid-mason pine system.We can draw three results on our experiment:1,Under different acid gradients, the mason pine leaves show different spectrum lines, in VR the pH3.5,pH4.5,pH5.0,pH5.6 and pH7.0 acid rain effect, only the pH3.5 show special data from 250nm to 750nm, the others have the same various principle. We can conclude that, in strong acid effect (pH3.5), the mason pine show special data in BE, and in the normal acid gradients, they show the same principle.2,To analysis the SZ and CQ data, we find the two areas show different spectrum lines under different acid gradients (SZ pH5.0 and CQ pH4.5). We can draw the result that there is a principle the acid gradients various opposite way with the spectrum lines.3,We draw the pH4.5 and pH5.0 spectrum lines compare with the out data, there is some same principle. We can conclude that there is the spectrum line compare with a certain acid gradient. We can also defer that we can set a spectrum model for the acid gradient base on the data. In additional. we can find a new way to analysis the acid rain use spectrum and some math ways.