代码链接:https://code.earthengine.google.com/?scriptPath=users/sat-io/awesome-gee-catalog-examples:agriculture-vegetation-forestry/GFCC30TC-TREE-CANOPY-COVER License¶ This data is open to the public and browse images are freely available without restriction. Created by: Sexton, J. O et al C...
In most forest inventory data, it is not feasible to estimate the canopy coverage of trees having certain characteristics due to the lack of information on crown size. In this study, data from the Forest Inventory and Analysis (FIA) program was used to assign crown sizes to individual trees ...
Proportion of tree canopy cover at sites occupied by New England cottontail (NEC) and eastern cottontail (EC) by zone and scale of analysis. 来自 figshare.com 喜欢 0 阅读量: 32 作者:B Bill,MGJ Thomas,EG Amy,ES Mary,PH Thomas 年份: 2015 ...
The aim of this paper is to systematically combine complementary LiDAR and synthetic aperture radar (SAR) observations to map tree canopy cover in a boreal forest. LiDAR data can provide direct measurements of vegetation structures but are limited by the sparse spatial coverage of observations. SAR...
pixel-based statistical method used. Besides tree density, the carbon sequestration capacity of trees is influenced by many other factors such as species diversity, photosynthetic capacity, and canopy architecture31,32. Some overlooked factors may play a significant role at certain points, leading to ...
2.10. Validating the tree canopy segmentation We validated the tree canopy segmentation results against available field data (municipal tree point database for managed trees) and land cover reference datasets manually digitized from orthophotos. First, we compared the results of tree canopy segmentation...
Tree Canopy Health Historical Canopy Change To measure the temporal change of Wake County tree canopy, DRG performed a second land cover analysis utilizing 2010 NAIP imagery. The data then allowed for measurement and comparison of Wake County’s tree canopy over the ten-year span from 2010 to ...
an increase of blue/red light ratio, and (3) increased penetration of light into the canopy and thus a more equitable distribution of light between ... Urban,Janous,Acosta,... - 《Global Change Biology》 被引量: 340发表: 2007年 Forest management systems for tropical high forest, with spec...
regenerated under the canopy gaps24. As the dominant tree species,Pkkept the diameter distribution rule of the natural forest, but in the disturbed plots, the number of trees decreased. Univariate pair correlation functiong(r) for most standing trees showed clustered patterns in almost all scales...
Data collection Environmental variables Canopy openness and the percentage of grass cover were examined at the each of the four microsites (4 microsites × 10 replicates = 40). To determine canopy cover, four hemispherical canopy photographs were obtained from each replicate during the rain...