2025年3月1日 · Changes in stand spatial structure affect the importance values of PFGs rather than their species composition. The functional groups of understory plants are important components of forest biodiversity, and help in maintaining the …

2025年3月11日 · Selecting Relevant Features for Random Forest-Based Crop Type Classifications by Spatial Assessments of Backward Feature Reduction

2017年11月21日 · The history of remote sensing applications in forest inventories goes even beyond the early days of satellite earth observation and is as old as the era of aerial photogrammetric surveys. This special issue of PFG presents a number of selected studies on the state-of-the-art research in inventory of forest stands by using multi-source remote ...

2014年10月16日 · 植物功能群（pfg）把一系列植物归为一个功能团体，可以作为植被随环境动态变化的基本单元，简化相关研究。 植物功能群内不同物种的生理特性差异是功能群存在的基础，也影响着功能群整体的功能。

Desde 2013, PFG ha sido el aliado confiable de los profesionales de la conservación de áreas verdes y construcción en Panamá. Nuestra amplia gama de productos de las marcas ECHO, Shindaiwa y Makita, junto con

2022年4月25日 · New methods of remote sensing have strongly influenced forest applications in the fields of conservation, monitoring and assessment of forest ecosystems. From assessing forest ecosystem health, over protecting and preserving biodiversity, to monitoring single trees and entire forests—gaining accurate information on the status and distribution ...

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2023年3月13日 · The quality and yield of ginseng are significantly affected by ecological factors, especially soil, which is a complex environment. This study compared the quality, yield, and soil differences of ginseng in a Mongolian oak forest (MOFG), birch forest (BFG), mixed wood forest (MWFG), poplar forest (PFG), farmland (FlG), and a felling forest (DfG).

A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function.