Results 21 to 30 of about 12,663,345 (288)

Land cover classification using multi-temporal MERIS vegetation indices [PDF]

open access: yes, 2007
The spectral, spatial, and temporal resolutions of Envisat's Medium Resolution Imaging Spectrometer (MERIS) data are attractive for regional- to global-scale land cover mapping.
Mathur, A.   +7 more
core   +1 more source

Evaluating the post-fire natural regeneration of Mediterranean-type scrublands in Central Spain

open access: yesMediterranean Botany, 2021
We performed a five-year assessment of the natural vegetation restoration capacity following the 2012 fires in Valdemaqueda (Madrid, Spain) via the characterization of the post-fire and residual vegetation and the analysis of soil physico-chemical ...
Rosina Magaña Ugarte   +2 more
doaj   +1 more source

Human disturbance is the major driver of vegetation changes in the Caatinga dry forest region

open access: yesScientific Reports, 2023
Drastic changes in vegetation structure caused by exceeding ecological thresholds have fueled the interest in tropical forest responses to climate and land-use changes.
Helder F. P. Araujo   +3 more
doaj   +1 more source

The natural vegetation of the Robertson Karoo : an evaluation of its conservation status [PDF]

open access: yes, 1990
Bibliography: leaves 164-179.The natural vegetation of the Robertson Karoo contains many taxa and vegetation communities worthy of conservation. This thesis is concerned with aiding the future conservation of natural vegetation of the Robertson Karoo by ...
Wood, Julia
core   +1 more source

Effects of land use changes on soil organic carbon, nitrogen and their losses in a typical watershed of the Loess Plateau, China

open access: yesEcological Indicators, 2021
The “Grain for Green” programme has had a significant impact on land use change and carbon and nitrogen balance. However, it is unlear how vegetation restoration affects soil organic carbon (SOC), nitrogen (N) and their losses based on the grid measured ...
Guangyu Zhu   +3 more
doaj   +1 more source

The map of potential natural vegetation as a basis for comparative studies and geobotanical regionalization

open access: yesActa Societatis Botanicorum Poloniae, 2014
A method of typology and regionalization of landscape units of vegetation on the basis of a map of potential natural vegetation is presented. Particular attention has been paid to the methodical basis of the conducted division.
Joanna Plit
doaj   +1 more source

Vegetation NDVI Linked to Temperature and Precipitation in the Upper Catchments of Yellow River [PDF]

open access: yes, 2012
Vegetation in the upper catchment of Yellow River is critical for the ecological stability of the whole watershed. The dominant vegetation cover types in this region are grassland and forest, which can strongly influence the eco-environmental status of ...
Ouyang, W.   +6 more
core   +1 more source

Ecosystem functioning, ecosystem services and rooibos production as affected by connectivity to natural vegetation and agrochemical use in rooibos tea (Aspalathus linearis) farming [PDF]

open access: yes, 2011
Globally, increasing land-use intensity has led to more intensive farming practices at the local scale and the loss of non-crop habitats at the landscape scale which may affect various ecosystem services.
Herbst, Marianté
core   +1 more source

Detecting the impact of the “Grain for Green” program on land use/land cover and hydrological regimes in a watershed of the Chinese Loess Plateau over the next 30 years

open access: yesEcological Indicators, 2023
To increase vegetation coverage and improve ecosystem services, the government has promulgated and implemented the “Grain for Green” policy since 1999. How and where vegetation cover increases and how land use/land cover (LULC) changes determine regional
Haijie Yi   +6 more
doaj   +1 more source

Making environmental assessments of biomass production systems comparable worldwide

open access: yesEnvironmental Research Letters, 2016
Global demand for agricultural and forestry products fundamentally affects regional land-use change associated with environmental impacts (EIs) such as erosion.
Markus A Meyer   +3 more
doaj   +1 more source

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