The literature suggests that biochar increases the fertility of degraded, nutrient-poor tropical soils. We hypothesized addition (a) tree growth in two plantations on Ultisols south Ecuadorian Amazon region, (b) reduces litterfall during dry season because soil remains moister, and (c) improves benefit–cost ratio plantation. grew species—the native leguminous Schizolobium parahyba var. amazonic...

Reviewing forest carbon sinks is of the utmost importance in efforts to control climate change. This study focuses on reporting 20-year boreal growth values acquired with airborne laser scanning (ALS). The was examined Kalkkinen research site southern Finland as a continuation several earlier studies performed same area. data for were gathered three totally different systems, namely using Topos...

Remote sensing tools are increasingly being used to survey forest structure. Most current methods rely on GPS signals, which are available in above-canopy surveys or in below-canopy surveys of open forests, but may be absent in below-canopy environments of dense forests. We trialled a technology that facilitates mobile surveys in GPS-denied below-canopy forest environments. The platform consist...

Background: Dracaena cinnabari is a monocot species that does not form annual tree rings; thus, its age can only be estimated. This threatened by low natural regeneration, with an evident absence of younger individuals most likely caused overgrazing; therefore, knowing trees’ ages important for possible conservation strategies; Methods: Data collection was conducted on the Firmihin Plateau Soco...

In order to determine the influence of soil water table fluctuation on tree species richness and structure of alluvial forest fragments, 24 plots were allocated in a point bar forest and 30 plots in five forest fragments located in a floodplain, in the municipality of São Sebastião da Bela Vista, Southeast Brazil, totalizing 54, 10 X 20 m, plots. The information recorded in each plot were the s...

The extent of the effect of projected changes in climate on trees remains unclear. This study investigated the effect of climatic variation on morphological traits of balsam fir [Abies balsamea (L.) Mill.] provenances sourced from locations spanning latitudes from 44° to 51°N and longitudes from 53° to 102°W across North America, growing in a common garden in eastern Canada. Lower latitude prov...

With the development of computer vision technology, its applications in forestry are steadily becoming wider. To address problems inconvenience transporting unmanned aerial vehicles (UAVs), as well complex operation large instruments for measurement, a new method based on multi-vision image segmentation and coordinate fusion (MISF) is proposed this paper measuring size standing trees. In MISF, ...

The tree diameter at breast height (DBH) is one of the most important variables for monitoring forest ecology. Mobile laser scanning (MLS), which has been widely applied in forestry field, makes DBH measurement fast and convenient. However, there are many shrubs deadwood neutral environment point clouds quality from MLS easily affected by results low single segmentation estimation accuracy. To ...

We monitored 15 radio-collared raccoons (Procyon lotor) on Davies Island in March 1987 May 1988 to determine the extent to which individual tree attributes or spatial configuration of plant associations (habitat types) across the landscape influenced den use. Of 1091 verified den sites, 428 were in tree cavities. Raccoon occurrence among 4 cover types differed from that expected based on the to...

Abstract Although agroforestry systems (AFS) provide numerous ecosystem services and are a recognized strategy for climate change mitigation adaptation, knowledge on the woody component is lacking. Single tree data could improve planning, management optimization of AFS. One species which great interest due to its valuable timber non-timber products walnut ( Juglans regia L.). We used terrestria...