Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1186/1472-6785-13-22 |
Floral diversity in desert ecosystems: Comparing field sampling to image analyses in assessing species cover | |
Ksiksi, Taoufik S.1; El-Keblawy, Ali A.2 | |
通讯作者 | Ksiksi, Taoufik S. |
来源期刊 | BMC ECOLOGY
![]() |
ISSN | 1472-6785 |
出版年 | 2013 |
卷号 | 13 |
英文摘要 | Background: Developing a quick and reliable technique to estimate floral cover in deserts will assist in monitoring and management. The present attempt was to estimate plant cover in the UAE desert using both digital photography and field sampling. Digital photographs were correlated with field data to estimate floral cover in moderately (Al-Maha) and heavily (DDCR) grazed areas. The Kruskal-Wallis test was also used to assess compatibility between the two techniques within and across grazing intensities and soil substrates. Results: Results showed that photographs could be a reliable technique within the sand dune substrate under moderate grazing (r=0.69). The results were very poorly correlated (r=-0.24) or even inversely proportional (r=-0.48) when performed within DDCR. Overall, Chi-square values for Al-Maha and DDCR were not significant at P>0.05, indicating similarities between the two methods. At the soil type level, the Kruskal-Wallis analysis was not significant (P>0.05), except for gravel plains (P<0.05). Across grazing intensities and soil substrates, the two techniques were in agreement in ranking most plant species, except for Lycium shawii. Conclusions: Consequently, the present study has proven that digital photography could not be used reliably to asses floral cover, while further testing is required to support such claim. An image-based sampling approach of plant cover at the species level, across different grazing and substrate variations in desert ecosystems, has its uses, but results are to be cautiously interpreted. |
类型 | Article |
语种 | 英语 |
国家 | U Arab Emirates |
收录类别 | SCI-E |
WOS记录号 | WOS:000321389900001 |
WOS关键词 | GROUND-COVER ; VEGETATION ; CLASSIFICATION ; PHOTOGRAPHY |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/176212 |
作者单位 | 1.UAE Univ, Dept Biol, Al Ain, U Arab Emirates; 2.Univ Sharjah, Dept Appl Biol, Sharjah, U Arab Emirates |
推荐引用方式 GB/T 7714 | Ksiksi, Taoufik S.,El-Keblawy, Ali A.. Floral diversity in desert ecosystems: Comparing field sampling to image analyses in assessing species cover[J],2013,13. |
APA | Ksiksi, Taoufik S.,&El-Keblawy, Ali A..(2013).Floral diversity in desert ecosystems: Comparing field sampling to image analyses in assessing species cover.BMC ECOLOGY,13. |
MLA | Ksiksi, Taoufik S.,et al."Floral diversity in desert ecosystems: Comparing field sampling to image analyses in assessing species cover".BMC ECOLOGY 13(2013). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。