Vegetation Coverage Evaluation of Yangtze River Great Protection Based on Envi Software - A Case Study of Maanshan City

Now for the ecological protection is becoming more and more strict in China, in recent years also introduced many policies to strengthen vegetation protection of the Yangtze river region, vegetation coverage of the Yangtze river region has been the attention of people, has become a hot topic in the attention, now the rapid development of computer technology make the vegetation condition inspection of the Yangtze river region is becoming more and more obvious, vegetation index is a kind of effective indicators can monitor the vegetation and ecological environment, based on computer ENVI vegetation index data sets, can complete in time and space of common area of vegetation is analyzed, on the basis of this, Is applied to a yuan linear regression trend method to study the testing method of the non-normal distribution data of vegetation coverage of the Yangtze river triangular prism area is studied, the results of the study is also very effective, could detect the vegetation along the Yangtze river area in good time and space changes, found that the change of human activities on vegetation in the study also has the very big impact, and vegetation also made a positive response to human activities. On the whole, the vegetation coverage in the Yangtze River region presents a declining trend. Through the study and verification of the unitary linear regression equation, various vegetation conditions under the background of rapid urbanization are revealed, which provides reference and basis for the vegetation research in the Yangtze River region.