CAJ | 학술논문

[目的]探索紫茎泽兰的遥感监测技术.[方法]以四川省凉山州西昌市为试点,对紫茎泽兰样地的群落数量特征和遥感植被指数进行了相关性分析.[结果]在RVI、NDVI和PVI 3种植被指数中,RVI与紫茎泽兰群落高度、盖度和生物量的相关系数均大于0.7,说明RVI对紫茎泽兰等高植被群落最敏感,与其群落数量特征的相关性最好,能较好地反映群落的特征;各植被指数与紫茎泽兰群落地上生物量的相关程度差异不大;各植被指数中,紫茎泽兰生物量与NDVI的相关系数最小,盖度与PVI的相关性最低.[结论]利用RVI可对紫茎泽兰的危害情况进行有效监测.
[목적]탐색자경택란적요감감측기술.[방법]이사천성량산주서창시위시점,대자경택란양지적군락수량특정화요감식피지수진행료상관성분석.[결과]재RVI、NDVI화PVI 3충식피지수중,RVI여자경택란군락고도、개도화생물량적상관계수균대우0.7,설명RVI대자경택란등고식피군락최민감,여기군락수량특정적상관성최호,능교호지반영군락적특정;각식피지수여자경택란군락지상생물량적상관정도차이불대;각식피지수중,자경택란생물량여NDVI적상관계수최소,개도여PVI적상관성최저.[결론]이용RVI가대자경택란적위해정황진행유효감측.
[Objective] The aim was to study the remote sensing technology of Eupatorium adenophorum Spreng. [Method] With Xichang City in Liangshan Prefecture of Sichuan Province as the experimental unit, the correlation of community numerical characteristics and applying rs vegetation indexes of E. adenophorum in sample plot was studied. [Result] In 3 kinds of vegetation indexes (RVI, NDVI and PVI), the correlation coefficients of RVI and community height, coverage and biomass of E. adenophorum were all higher than 0.7, which indicated that RVI was the most sensitive vegetation indexe to high vegetation communities such as E. adenophorum etc, and its correlation with community numerical characteristics of E. adenophorum was the best, so it could well reflect the community characteristics of E. adenophorum. The correlation degree of each vegetation index and aboveground biomass of E. adenophorum community had little difference. In all vegetation indexes, the correlation coefficient of biomass of E. adenophorum and NDVI was the smallest, and the correlation of coverage and PVI was the lowest. [Conclusion] The harm condition of E. adenophorum could be effectively monitored with RVI.