Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41461011 |
| 基于高分辨率遥感影像的民勤绿洲植被优势种蒸腾耗水估算 | |
| 张华 | |
| 主持机构 | 西北师范大学 |
| 开始日期 | 2015 |
| 结束日期 | 2018 |
| 资助经费 | 500000(CNY) |
| 项目类别 | 地区科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | The transpiring water consumption of vegetation is the main consumption of water in arid area. Estimation of plant transpiration water consumption can achieve the scale conversion from point to area by high-resolution remote sensing images. The research objects of this study are the Populus euphratica, Haloxylon ammodendron, Elaeagnus angustifolia, Nitraria tangutorum, Kalidium foliatum Reaumuria songarica and Agriophyllum squarrosum which are the dominant species of vegetation in Minqin oasis. Guided by the theories of Geobotany, Ecohydrology, Statistics theories and other disciplines. Field investigation combined with remote sensing and spatial technique will be applied to study transpiring water consumption of dominant species of vegetation from point, plot to area in Minqin oasis. First, biological characteristics of typical plots survey and biomass observation of dominant species of vegetation will be made. The relational model of aboveground biomass and the ecological parameters (canopy breadth or coverage degree) of dominant species of vegetation will be constructed. Then, ecological parameters of dominant species of vegetation will be obtained from high-resolution remote sensing images Geoeye-1, which will be classified to reveal the spatial distribution of aboveground biomass of dominant species of vegetation. Finally, to estimate the transpiring water consumption of dominant species of vegetation by the relationship between biomass and transpiration coefficient. According to the studying results, to analyze spatial distribution characteristics of transpiring water consumption in Minqin oasis. The spatial distribution pattern of transpiring water consumption will be revealed. Thus this study could provide basis for plant diversity conservation and Ecosystem in Minqin oasis. Also could be a reference of rational water resources management of Shiyanghe river basin. |
| 来源机构 | 西北师范大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/344390 |
| 推荐引用方式 GB/T 7714 | 张华.基于高分辨率遥感影像的民勤绿洲植被优势种蒸腾耗水估算.2015. |
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