Study On The Interpretation Of The Aerial Photograph Of The Main Plants In Jinsha River Region

Jinsha River, which is 3,496 km in length and 473,200 km2 in drainage area, is an important part of the main stream of Yangze River. Jinsha River basin has a most fragile while diversified forest ecosystem in Yangze River. Also it plays an important role in the sustainable development of social and economic issues in Yangze River Basin.Two times of field surveys have been carried out of the main plants in this dry-hot valley area, from April to May,2010 and from November to December,2010, respectively. We took photos of quadrats and vegetations, collected specimens, recorded the environments and GPS information, measured the trunk width, canopy breadth, height of trees and height beneath the braches. We also wrote down information about the direction of crown inclination, obstacles of houses and roads and paid special attention to the shape of trees crowns and the branches. Furthermore, materials and statistical data of the studying region were collected. Then we revised the interpretation errors, ascertained the unknown types, added and completed the interpretation marks according to the results of field work.533 plants,100 specimens and approximately 4300 photos were collected in total. Lastly, we systematically sorted out the characteristics of shapes and images, established the interpretation marks, directly or indirectly, and then completed the identification table for the interpretation of main plants in this region.From our research work, we provide certain reference for the theoretical research and practical work for the quick interpretation of plants in Jinsha River area, as well as beneficial experience to improve the accuracy and efficiency of interpretation of remote sensing images.