Results 21 to 30 of about 2,582,481 (333)

DIGITAL EXTRACTION AND CHANGE ANALYSIS OF ALTITUDINAL NATURAL ZONES IN TIANSHAN TOMUR NATURAL HERITAGE SITE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The Tomur Natural Heritage Site possesses the most typical altitudinal natural zones on the south slope of the Tianshan Mountains. Five altitudinal zones have developed on the south faced slope, including: warm temperate desert zone, mountain steppe zone,
H. Wan   +5 more
doaj   +1 more source

Agroecological, climatic, land elevation and socio-economic determinants of pesticide use at the farm level in Bangladesh [PDF]

open access: yes, 2015
This study examines the influence of agroecology, climate, land elevation and socio-economic factors on pesticide use at the farm level using a large survey data of 2083 farms from 17 districts covering 10 agroecological zones in Bangladesh by applying a
Rahman, S
core   +2 more sources

GEDI Elevation Accuracy Assessment: A Case Study of Southwest Spain

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Information about forest structures is becoming crucial to earth's global carbon cycle, forest habitats, and biodiversity. The Global Ecosystem Dynamics Investigation (GEDI) provides 25-m diameter footprints of the surface for 3-D structure measurements.
E. Quirós   +2 more
semanticscholar   +1 more source

The sequevar distribution of Ralstonia solanacearum in tobacco-growing zones of China is structured by elevation

open access: yesEuropean journal of plant pathology, 2017
Bacterial wilt, caused by Ralstonia solanacearum, is a devastating disease resulting in tremendous losses of economic crops such as plants in the Solanaceae. Recent studies showed that R.
Y. Liu   +7 more
semanticscholar   +1 more source

Impact of climatic conditions on the reproductive phenological phases of European hazel (Corylus avellana L.) in Slovakia

open access: yesJournal of Forest Science, 2016
The work presents the results of phenological observations of flowering and fruit ripeness of the European hazel (Corylus avellana L.) in Slovakia in two time periods: 1964-1983, and 1994-2013.
J. Škvareninová
doaj   +1 more source

Micro-geographic risk factors for malarial infection. [PDF]

open access: yes, 2009
BACKGROUND: Knowledge of geography is integral to the study of insect-borne infectious disease such as malaria. This study was designed to evaluate whether geographic parameters are associated with malarial infection in the East Sepik province of Papua ...
Cox-Singh, J   +5 more
core   +2 more sources

DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA

open access: yesЛëд и снег, 2015
Progress in understanding cascades of subglacial lakes inAntarcticaand surface dynamics was derived using satellite laser altimetry measurements ICESat. The morphological and dynamical pattern troughs and swells indicate subglacial lakes and positions of
V. M. Kotlyakov   +4 more
doaj   +1 more source

What Is the Threshold Elevation at Which Climatic Factors Determine Snow Cover Variability? A Case Study of the Keriya River Basin

open access: yesRemote Sensing, 2023
Climate and topography are pivotal factors influencing snow cover variation, highlighting the significance of investigating the altitudinal response of snow cover to climate change.
Wei Yan   +6 more
doaj   +1 more source

Experimental salt marsh islands: a model system for novel metacommunity experiments [PDF]

open access: yes, 2017
Shallow tidal coasts are characterised by shifting tidal flats and emerging or eroding islands above the high tide line. Salt marsh vegetation colonising new habitats distant from existing marshes are an ideal model to investigate metacommunity theory ...
Balke, Thorsten   +8 more
core   +2 more sources

Evaluation of Satellite Rainfall Estimates for Meteorological Drought Analysis over the Upper Blue Nile Basin, Ethiopia

open access: yesGeosciences, 2020
The objective of this study was to evaluate the performance of satellite rainfall estimates (Climate Hazards Group Infrared Precipitation with Stations version 2 (CHIRPSv2) and Multi-Source Weighted-Ensemble Precipitation version 2 (MSWEPv2) from 1981 to
Mintesinot Taye   +3 more
doaj   +1 more source

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