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浏览/检索结果: 共2条，第1-2条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 A Population Census of Large Herbivores Based on UAV and Its Effects on Grazing Pressure in the Yellow-River-Source National Park, China 期刊论文 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2019, 卷号: 16, 期号: 22, 页码: 20 作者:  Yang, Fan;  Shao, Quanqin;  Jiang, Zhigang 收藏  |  浏览/下载：12/0  |  提交时间：2020/05/19 UAV remote sensing  large wild herbivore populations  forage yield  functional zones  forage-livestock balance   Extraction of Pinus massoniana tree crown from Unmanned Aerial Images 会议论文 5th International Workshop on Earth Observation and Remote Sensing Applications (EORSA), Xian, PEOPLES R CHINA, JUN 18-20, 2018 作者:  Chen, Zhongming*;  Lin, Hui;  Sun, Hua;  Li, Chengjie;  Li, Jia 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/28 Forestry remote sensing  Tree crown extraction  Image smoothing  Transect sample algorithm  Pinus massoniana