Abstract
Red-Crowned crane is an endangered species whose population in the world is 1000-1200, the 2/3 of which live in China. Xianghai wetland in Jilin Province is one of their breeding places. In this study, hydrological condition of the wetland is investigated in relation to the cranes' nesting: Twelve scenes of Landsat-TM data were analyzed to estimate the water area as well as the area of “reed colonies in the water” that is the most favorable places for the cranes' nesting. The results of analysis agreed well to the facts obtained from field observations in the past. The analysis also showed that the reed colony becomes richer as the total water area gets larger. Then, the variation of water area in Xianghai for twenty years was obtained from 145 scenes of Quick-look images by eyes. Using the data, empirical equations were constructed for predicting the variation of water area from basic hydrological factors such as rainfall and river flow rate. A critical river flow rate for the conservation of the cranes' habitat in Xianghai wetland was discussed, being based on the empirical relations as well as the facts observed at the site.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.