کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4464883 1621839 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of understory invasive exotic plants with remote sensing in urban forests
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات کامپیوتر در علوم زمین
پیش نمایش صفحه اول مقاله
Identification of understory invasive exotic plants with remote sensing in urban forests
چکیده انگلیسی

Invasive exotic plants (IEP) pose a significant threat to many ecosystems. To effectively manage IEP, it is important to efficiently detect their presences and determine their distribution patterns. Remote sensing has been a useful tool to map IEP but its application is limited in urban forests, which are often the sources and sinks for IEP. In this study, we examined the feasibility and tradeoffs of species level IEP mapping using multiple remote sensing techniques in a highly complex urban forest setting. Bush honeysuckle (Lonicera maackii), a pervasive IEP in eastern North America, was used as our modeling species. Both medium spatial resolution (MSR) and high spatial resolution (HSR) imagery were employed in bush honeysuckle mapping. The importance of spatial scale was also examined using an up-scaling simulation from the HSR object based classification. Analysis using both MSR and HSR imagery provided viable results for IEP distribution mapping in urban forests. Overall mapping accuracy ranged from 89.8% to 94.9% for HSR techniques and from 74.6% to 79.7% for MSR techniques. As anticipated, classification accuracy reduces as pixel size increases. HSR based techniques produced the most desirable results, therefore is preferred for precise management of IEP in heterogeneous environment. However, the use of MSR techniques should not be ruled out given their wide availability and moderate accuracy.


► Multiple remote sensing techniques were used to map invasive species in an urban forest setting.
► Both medium and high spatial resolution imagery classification provide acceptable classification.
► Accuracy reduced as spatial scale increased.
► Our research provides useful knowledge for natural resources managers in combating exotic invasion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Applied Earth Observation and Geoinformation - Volume 21, April 2013, Pages 525–534
نویسندگان
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