搜索结果: 1-12 共查到“知识库 spatial pattern”相关记录12条 . 查询时间(0.167 秒)
Spatial pattern of relict beech (Fagus sylvatica L.) forests in the Sudetes of the Czech Republic and Poland
European beech horizontal structure protected areas natural forest crown plasticity
2016/8/2
Horizontal structure of forest stands largely affects the competitive relationships between tree individuals and plays a significant role in the stand dynamics. The present study describes horizontal ...
REMOTE SENSING-BASED DETECTION AND SPATIAL PATTERN ANALYSIS FOR GEO-ECOLOGICAL NICHE MODELING OF TILLANDSIA SPP. IN THE ATACAMA, CHILE
WorldView-3 fog ecosystems spatio-spectral classification
2016/7/8
In the coastal Atacama Desert in Northern Chile plant growth is constrained to so-called ‘fog oases’ dominated by monospecific stands of the genus Tillandsia. Adapted to the hyperarid environmental co...
Factors controlling the regeneration process in unevenly aged silver fir forests: inferences from the spatial pattern of trees
Abies alba selection forest regeneration microhabitat
2015/3/3
The main objective of this study was to prove the relationship between the spatial pattern of trees and
distribution of advanced regeneration in structured Abies alba Mill. forests in the Western Ca...
EFFECTS OF HETEROGENIETY ON SPATIAL PATTERN ANALYSIS OF WILD PISTACHIO TREES IN ZAGROS WOODLANDS, IRAN
Heterogeneity Null model Ripley's K-function Spatial pattern analysis Wild pistachio Zagros
2014/12/1
Vegetation heterogeneity biases second-order summary statistics, e.g., Ripley's K-function, applied for spatial pattern analysis in ecology. Second-order investigation based on Ripley's K-function and...
Competitively Coupled Maps and Spatial Pattern Formation
Competitively Coupled Maps Spatial Pattern Formation
2012/4/26
Spatial pattern formation is a key feature of many natural systems in physics, chemistry and biology. The essential theoretical issue in understanding pattern formation is to explain how a spatially h...
SPATIAL PATTERN OF TEMPORAL TREND OF CROP PHENOLOGY MATRICES OVER INDIA USING TIMESERIES GIMMS NDVI DATA (19826ndash;2006)
Crop phenology GIMMS NDVI India TIMESAT Median trend
2014/5/6
NOAA-AVHRR bi-monthly NDVI data of 8×8 km for the period of 1982–2006 were used to analyze the trend of crop phenology matrices over Indian region. Time series principal component analysis of NDVI was...
Spatial Pattern of Uncertainties: An Accuracy Assessment of the TIGER Files
GIS Spatial data quality Inaccuracy TIGER files
2009/12/3
This study discusses the ways how the positional accuracy of the TIGER files can be measured and spatially reported.Many people and companies use the address range of the TIGER files with the geocodin...
First evidence of a structured and dynamic spatial pattern of rainfall within a small humid tropical catchment
catchment Malaysia monsoon rainfall spatial variability
2009/3/12
In a study of the spatial variability of rainfall across a network of 46 raingauges in a 4 km2 rainforest catchment in the interior of northeastern Borneo, seasonal rainfall totals were correlated wit...
Analyzing the causes and spatial pattern of the European 2003 carbon flux anomaly using seven models
spatial pattern European 2003 carbon flux seven models
2010/1/15
Globally, the year 2003 is associated with one of the largest atmospheric CO2 rises on record. In the same year, Europe experienced an anomalously strong flux of CO2 from the land to the atmosphere as...
Remote-sensing and field data of Guizhou forest resources in 2000 are processed using ArcGIS, with the production of forest resource distribution map, forest age class structure map, and f...
Abstract: The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model developed for the study area of the Liaohe Delta, China. Four scenar...
TEMPORAL-SPATIAL PATTERN OF TRUE BUG ASSEMBLIES (HETEROPTERA: GERROMORPHA, NEPOMORPHA) IN LAKE BALATON
aquatic bugs semiaquatic bugs freshwater community pattern-analysis hydrobiology
2010/3/23
The present study was carried out at lake Balaton during 1999 and 2000, collecting Heteroptera species from 44 sampling sites. The different basins and the surrounding streams were compared based on t...