CAJ | 학술논문

土壤干湿状况的监测对于区域生态资源环境具有重要意义．本研究选取福州地区为研究区，利用HJ-1B CCD/IRS遥感影像建立基于不同植被指数（ NDVI和EVI）的地表温度-植被指数特征空间，分析和比较了2种特征空间差异，并计算得到2种地表温度-植被干旱指数TVDI．将TVDI与同期野外采集的实测土壤湿度数据进行线性回归分析，结果表明这2种植被指数计算得到的TVDI在研究区进行表层土壤湿度监测具有一定的可行性，且Ts/EVI的监测精度更高，其能很好地反映区域表层土壤湿度状况，是一种有效的表层土壤湿度监测方法．
토양간습상황적감측대우구역생태자원배경구유중요의의．본연구선취복주지구위연구구，이용HJ-1B CCD/IRS요감영상건립기우불동식피지수（ NDVI화EVI）적지표온도-식피지수특정공간，분석화비교료2충특정공간차이，병계산득도2충지표온도-식피간한지수TVDI．장TVDI여동기야외채집적실측토양습도수거진행선성회귀분석，결과표명저2충식피지수계산득도적TVDI재연구구진행표층토양습도감측구유일정적가행성，차Ts/EVI적감측정도경고，기능흔호지반영구역표층토양습도상황，시일충유효적표층토양습도감측방법．
Soil moisture monitoring is important significance in the management of regional resources and environment .Based on two kinds of vegetation index ( NDVI and EVI ) , this study used HJ-1 B CCD/IRS images to establish surface temperature-vegetation index ( Ts/VI) characteristic spaces in Fuzhou , and analyzed and compared the two results .Two kinds of temperature-vegetation dryness in-dex were calculated from the Ts/NDVI and Ts/EVI spaces.Regression analysis was made between TV-DI and contemporaneous field measured soil moisture data .The results showed that both TVDIN and TVDIE could be used to predict the near surface soil moisture , and TVDIE has a higher precision than TVDIN .Therefore, TVDIE can be used to monitor and assess near surface moisture in study area , it is a more useful method to monitor soil moisture .