Remote sensing of vegetation structure, composition and health

植被结构、组成和健康遥感

• 批准号: 130596-2006
• 负责人: King, Douglas
• 金额: $ 1.76万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=391366
• 关键词: Remote; sensing; vegetation; structure; composition

Landscape change from natural and anthropogenic disturbance greatly affects the abundance and spatial configuration of forests and wetlands, which in turn impact physical processes (e.g. climate, hydrology) and habitat for flora and fauna.  The goal of this research is to develop remote sensing and geo-spatial methods for mapping and monitoring forests and wetlands at a variety of spatial and temporal scales.  Research on ecological response lags to landscape disturbance in Eastern Ontario is being initiated within the Carleton Geomatics and Landscape Ecology Laboratory.  As part of this, the following projects are proposed: Evaluate land cover change over the region in the past 50 years using a combination of archived and current geo-spatial data; Develop capabilities for local and regional wetland vegetation mapping; Evaluate the impact of road development on habitat; and Develop means to improve mapping and monitoring of biodiversity indicators to aid land management objectives in the region.  Each of these will include high to moderate resolution imagery acquired with airborne or satellite sensors. Results will be linked to the research of my collaborators on impacts of landscape fragmentation and disturbance on species population dynamics. Research in forest management will be conducted in two settings: the protected Gatineau Park and forests managed for wood products. In the Gatineau Park, methods will be developed for local biodiversity mapping, forest structure and health temporal change monitoring, and integration of optical, lidar and radar data for forest mapping.  In private woodlots in eastern Ontario and southern Quebec, methods for monitoring disturbance and management impacts will be developed. These two projects will be in collaboration with two Ottawa area aircraft and photo companies using Cessna 172 aircraft and a custom designed door with pod and camera mount.  In boreal forest cutovers, automated regeneration assessment methods developed in the last grant period will be refined and implemented in pilot studies with industrial partners.

自然和人为灾难发生的景观变化极大地影响了森林和湿地的丰富性和空间构造，这又影响了物理过程（例如气候，氢病学）和动植物的栖息地。这项研究的目的是开发远程灵敏度和地理空间方法，用于在各种空间和临时尺度上绘制和监视森林和湿地。在卡尔顿地理学和景观生态实验室中，正在开始对安大略省东部景观灾难的生态反应的研究。为此，提出了以下项目：在过去50年中，使用存档和当前地理空间数据的组合在过去50年中评估土地覆盖率变化；为当地和地区湿地植被图制定功能；评估道路发展对栖息地的影响；并开发方法来改善生物多样性指标的映射和监视，以帮助该地区的土地管理目标。这些中的每一个都将包括使用空降或卫星传感器获得的高到中等分辨率图像。结果将与我的合作者对景观分散和灾难对物种种群动态的影响的研究有关。森林管理的研究将在两种环境中进行：受保护的加蒂诺公园和管理木材产品的森林。在加蒂诺公园（Gatineau Park）中，将开发用于局部生物多样性映射，森林结构和健康临时变化监测的方法，以及用于森林映射的光学，激光雷达和雷达数据的整合。在安大略省东部和魁北克省南部的私人伍兹中，将开发监测灾难和管理影响的方法。这两个项目将与两架渥太华地区飞机和摄影公司合作，并使用Cessna 172飞机以及带有吊舱和相机安装座的定制门。在北方森林的剪裁中，将在与工业伙伴的试点研究中完善并实施了在上一个赠款期间开发的自动再生评估方法。