Research On GIS-based Forest Dynamic Monitoring And Decision Analysis

This topic through the application of GIS technology,during the data preparation,it can be obtained the required data efficiently and accurately, providing the detailed data for the decision of returning farmland to forest in the late support,so that the grain for green project implementation has a effectively management and powerful development.Firstly, make sure the factors influencing the decision-making of the grain for green, then setting the impact factor of each influencing factor, through the experimental analysis,it’s concluded the final influence on decision-making of the grain for green by each impact factor, finally integrating all results of the impact factor, and giving the best decisionmaking plan on the grain for green.The scheme include the area of grain for green, time sequence of grain for green and tree species selection of grain for green, and so on.The plan gives the scientific opinion to the long time decision-making of grain for green, and analyze the specific issues to achieve the purpose of accurate farmland, c planting forest.Through the investigation and analysis of remote sensing image, understanding the conditions of planting of the Jingyue area in changchun city,according to the the relevant documents of grain for green by government,combined with the actual landform gradient, slope direction, soil erosion, drainage and residents to actual situation,using the diversity of ArcGIS software spatial information to overlay analysis,make sure the specific farmland area,such as cultivated land and unused land, and the specific area and floor area after grain for green,according to factors of water and distancere of sidents, make sure to terminate economic forest and ecological forest area after returning farmland.Finally, according to the above analysis results conclude the best grain for green project.Using GIS technology, remote sensing technology and other means for dynamic monitoring and decision analysis of grain for green project,it has played a very important role for the science work of grain for green, then combined GPS technology with field monitoring,playing the advantages of the positioning precision, it will effectively promote efficient development of grain for green project.