基于Sentinel-2遥感影像的南方丘陵区油菜种植面积提取研究——以湖南省临澧县为例  

Extraction of Rapeseed Planting Area in Hilly Regions of Southern China Based on Sentinel-2 Images:Taking Linli County of Hunan Province as an Example

作　　者：陈铸 徐异凡 徐思源 王军飞 覃伟 CHEN Zhu;XU Yi-fan;XU Si-yuan;WANG Jun-fei;QIN Wei(The Second Surveying and Mapping Institute of Hunan Province,Changsha 410100,PRC;Natural Resources Hunan Satellite Application Technology Center,Changsha 410100,PRC;Key Laboratory of Natural Resources Monitoring and Supervision in Southern Hilly Region,Ministry of Natural Resources,Changsha 410100,PRC;School of Land Science and Space Planning,Hebei GEO University,Shijiazhuang 050031,PRC)

机构地区：[1]湖南省第二测绘院,湖南长沙410100 [2]自然资源湖南省卫星应用技术中心,湖南长沙410100 [3]自然资源部南方丘陵区自然资源监测监管重点实验室,湖南长沙410100 [4]河北地质大学土地科学与空间规划学院,河北石家庄050031

出　　处：《湖南农业科学》2025年第2期95-100,共6页Hunan Agricultural Sciences

基　　金：湖南省自然科学基金(2023JJ60563);湖南省自然资源厅青年科技项目(20230158CH);湖南省自然资源厅重大科研课题(湘自科[2022]5号)。

摘　　要：该研究基于Sentinel-2遥感影像数据,结合归一化差分黄度指数(NDYI)、增强型植被指数(EVI)和耕地数据提取了2022年3月临澧县花期油菜种植面积。结合NDYI和EVI进行油菜种植面积提取,生产者精度、用户精度、总体精度和Kappa系数分别为87.83%、85.17%、91.19%和0.82;结合NDYI、EVI以及耕地数据进行提取,生产者精度、用户精度、总体精度和Kappa系数分别提升至91.21%、92.17%、98.13%和0.91。提取结果显示:2022年3月临澧县油菜种植面积为82.75 km^(2),其中四新岗镇的种植面积最大(13.07 km^(2)),望城街道种植面积最小(3.86 km^(2)),临澧县油菜种植主要集中在以合口镇、新安镇和刻木山乡为主的平原地区。The normalized difference yellowness index(NDYI),enhanced vegetation index(EVI),and farmland data were adopted to extract the rapeseed planting area in Linli County,Hunan Province in March 2022 based on Sentinel-2 images.The extraction based on the combination of NDYI and EVI achieved the producer accuracy,user accuracy,overall accuracy,and Kappa coefficient of 87.83%,85.17%,91.19%,and 0.82,respectively.The extraction based on NDYI,EVI,and farmland data achieved the producer accuracy,user accuracy,total accuracy,and Kappa coefficient of 91.21%,92.17%,98.13%,and 0.91,respectively.The extraction results showed that 2 the total rapeseed planting area in Linli County was 82.75 km in March 2022.Specifically,the planting area was the largest(13.07 km^(2))in Sixingang Town and the smallest(3.86 km^(2))in Wangcheng Subdistrict.The rapeseed planting in Linli County was concentrated in the plain regions including Hekou Town,Xin'an Town,and Kemushan Township.

关 键 词：Sentinel-2遥感影像 植被指数 油菜种植区 自动提取 临澧县 

分 类 号：S127[农业科学—农业基础科学]