中文摘要：

洪水灾害会对植被造成严重的破坏。利用Landsat 7/8数据和MNDWI方法提取了2013年东北地区松花江流域的洪水淹没范围,并基于此统计分析了黑龙江省各个市县的植被受灾情况。研究结果表明：此次洪水对黑龙江省植被造成了严重的破坏,其中遭受破坏的主要植被类型包括旱地植被、草本湿地植被、水田和落叶阔叶林;植被遭受破坏最严重的城市为佳木斯市,最严重的两个县或县级市为大庆市的肇源县和佳木斯市的同江市。

英文摘要：

Floods can cause serious damage to vegetation. In this paper,Landsat 7/8 data and MNDWI method are used to extract the flood submerged area in Northeast China in 2013. Based on this statistical analysis,the vegetation disaster situation of each city and county in Heilongjiang Province is counted and analyzed. The results showed that the floods caused serious damage to vegetation in Heilongjiang Province. The main types of vegetation,including upland field,herbaceous wetland,paddy field and deciduous broad-leaved forest. What＇s more,Vegetation is the most serious damage to the city of Jiamusi City,the most serious two counties for the Daqing City,Zhaoyuan County and Jiamusi City Tongjiang City.