نتایج جستجو برای: landcover

تعداد نتایج: 566  

Journal: :Remote Sensing 2016
Shaohong Tian Xianfeng Zhang Jie Tian Quan Sun

The wetland classification from remotely sensed data is usually difficult due to the extensive seasonal vegetation dynamics and hydrological fluctuation. This study presents a random forest classification approach for the retrieval of the wetland landcover in the arid regions by fusing the Pléiade-1B data with multi-date Landsat-8 data. The segmentation of the Pléiade-1B multispectral image dat...

2014
Christoph Muster Marc Meyer Thomas Sattler

Understanding how space affects the occurrence of native and non-native species is essential for inferring processes that shape communities. However, studies considering spatial and environmental variables for the entire community - as well as for the native and non-native assemblages in a single study - are scarce for animals. Harvestmen communities in central Europe have undergone drastic tur...

Journal: :Proceedings of the International Association of Hydrological Sciences 2018

2013
Tibor Hartel Henrik von Wehrden

BACKGROUND Traditional rural landscapes of Eastern Europe are undergoing major changes due to agricultural intensification, land abandonment, change in agricultural practices and infrastructural development. Small man-made ponds are important yet vulnerable components of rural landscapes. Despite their important role for biodiversity, these ponds tend to be excluded from conservation strategies...

2014
Abbey Rosso Peter Neitlich Robert J. Smith

Terrestrial lichen biomass is an important indicator of forage availability for caribou in northern regions, and can indicate vegetation shifts due to climate change, air pollution or changes in vascular plant community structure. Techniques for estimating lichen biomass have traditionally required destructive harvesting that is painstaking and impractical, so we developed models to estimate bi...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2021

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