Results 41 to 50 of about 108,300 (298)

Vegetation Dynamics in Ecuador [PDF]

open access: yes, 2019
Global forest cover has suffered a dramatic reduction during recent decades, especially in tropical regions, which is mainly due to human activities caused by enhanced population pressures.
González-Jaramillo, Víctor Hugo
core   +1 more source

Ecological Quality Evaluation of Large-scale Farm Based on Improved Remote Sensing Ecological Index

open access: yes, 2023
Large-scale farms are pivotal sites for the development of the agricultural industry, and the quality of the ecological environment is a significant factor affecting the growth of cereal crops. Consequently, assessing the ecological quality of large-scale farms is of great importance.
Jun Wang   +3 more
openaire   +1 more source

Mapping the species richness and composition of tropical forests from remotely sensed data with neural networks [PDF]

open access: yes, 2006
The understanding and management of biodiversity is often limited by a lack of data. Remote sensing has considerable potential as a source of data on biodiversity at spatial and temporal scales appropriate for biodiversity management.
Cannon   +22 more
core   +2 more sources

A review of assessment methods for river hydromorphology [PDF]

open access: yes, 2014
The work leading to this paper has received funding for the EU’s FP7 under Grant Agreement No.
A Buffagni   +60 more
core   +2 more sources

Mapping and analysis of changes in the riparian landscape structure of the Lockyer Valley Catchment, Queensland, Australia [PDF]

open access: yes, 2002
[Abstract]: A case study of the Lockyer Valley catchment in Queensland, Australia, was conducted to develop appropriate mapping and assessment techniques to quantify the nature and magnitude of riparian landscape structural changes within a catchment ...
Apan, Armando   +2 more
core   +1 more source

Ecological environment quality analysis of Jiyuan City based on improved remote sensing ecological index

open access: yes, 2023
Abstract With the high-speed development of Jiyuan City, frequent human activities have caused increasing impacts on the ecological environment, so remote sensing monitoring of the ecological environment is of great significance for assessing the sustainability of regional ecosystems and human living environment.
Zhonglin XIANG, Shijie ZHANG, Libo DENG
openaire   +1 more source

A remote sensing assessment index for urban ecological livability and its application

open access: yesGeo-spatial Information Science, 2022
ABSTRACTRemote sensing provides us with an approach for the rapid identification and monitoring of spatiotemporal changes in the urban ecological environment at different scales. This study aimed to construct a remote sensing assessment index for urban ecological livability with continuous fine spatiotemporal resolution data from Landsat and MODIS to ...
Junbo Yu   +3 more
openaire   +2 more sources

Near-surface remote sensing of spatial and temporal variation in canopy phenology [PDF]

open access: yes, 2009
There is a need to document how plant phenology is responding to global change factors, particularly warming trends. “Near-surface” remote sensing, using radiometric instruments or imaging sensors, has great potential to improve phenological monitoring ...
Braswell, Rob   +4 more
core   +2 more sources

Local forest structure variability increases resilience to wildfire in dry western U.S. coniferous forests. [PDF]

open access: yes, 2020
A 'resilient' forest endures disturbance and is likely to persist. Resilience to wildfire may arise from feedback between fire behaviour and forest structure in dry forest systems.
Fick, Stephen E   +4 more
core   +2 more sources

Study on Factors Affecting Remote Sensing Ecological Quality Combined with Sentinel-2

open access: yesRemote Sensing, 2023
Reasonable allocation of urban resources can effectively control changes in ecological quality. This study used Sentinel-2 images, taking urban functional areas as the dividing scale, and combined spatial analysis, statistics, and other relevant methods ...
Qiang Fan   +3 more
doaj   +1 more source

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