Results 41 to 50 of about 84,439 (187)

Integrated Assessments of Land Degradation in the Three-Rivers Headwater Region of China from 2000 to 2020

open access: yesRemote Sensing, 2023
Since the 1970s, certain areas within the Three-Rivers Headwater Region (TRHR) of China have faced severe land degradation due to the combined effects of climate change and human activities, leading to restricted ecological service functions and ...
Yao Pan, Yunhe Yin, Wei Cao
doaj   +1 more source

Exacerbated grassland degradation and desertification in Central Asia during 2000-2014. [PDF]

open access: yes, 2018
Grassland degradation and desertification is a complex process, including both state conversion (e.g., grasslands to deserts) and gradual within-state change (e.g., greenness dynamics). Existing studies hardly separated the two components and analyzed it
Alibakhshi   +52 more
core   +2 more sources

On the trails of Josias Braun-Blanquet : changes in the grasslands of the inneralpine dry valleys during the last 70 years. First results from the 11th EDGG Field Workshop in Austria [PDF]

open access: yes, 2020
The 11th EDGG Field Workshop was held from 6 to 13 July 2018 in Austria. Its aim was to revisit dry grasslands in the inneralpine dry valleys of Austria that were investigated in the late 1950s by Braun-Blanquet and to collect high-quality biodiversity ...
Biurrun, Idoia   +5 more
core   +1 more source

State-of-the-art and challenges in global grassland degradation studies

open access: yesGeography and Sustainability
Grassland ecosystems are experiencing severe deterioration due to ongoing climate fluctuation and human disturbance. Although numerous research centers on the patterns, processes, and functioning of degraded grassland, there is still a lack of standards ...
Mengqi Zhang   +4 more
doaj   +1 more source

Mercury speciation in soils of the industrialised Thur River catchment (Alsace, France) [PDF]

open access: yes, 2006
Methylmercury (MeHg) and total Hg (THg) concentrations in soil profiles were monitored in the Thur River basin (Alsace, France), where a chlor-alkali plant has been located in the city of Vieux-Thann since the 1930s.
Probst, Jean-Luc   +2 more
core   +3 more sources

Comprehensive degradation index for monitoring desert grassland using UAV multispectral imagery

open access: yesEcological Indicators
Desert grassland is an essential component of the northern grasslands of China, representing an ecosystem that transitions from grassland to desert. However, it is a fragile ecological environment.
Shu-han Gao   +5 more
doaj   +1 more source

Effect of sieving on ex-situ soil respiration of soils from three land use types [PDF]

open access: yes, 2020
This study aims to investigate the effect of sieving on ex situ soil respiration (CO2 flux) measurements from different land use types. We collected soils (0–10 cm) from arable, grassland and woodland sites, allocated them to either sieved (4-mm mesh ...
BC Thomson   +19 more
core   +1 more source

Integrated Remote Sensing Evaluation of Grassland Degradation Using Multi-Criteria GDCI in Ili Prefecture, Xinjiang, China

open access: yesLand
As an important ecological barrier and animal husbandry resource base in arid and semi-arid areas, grassland degradation directly affects regional ecological security and sustainable development. Ili Prefecture is located in the western part of Xinjiang,
Liwei Xing   +4 more
doaj   +1 more source

Machine learning-based assessment of grassland degradation levels on the Qinghai-Tibet Plateau from 2000 to 2020

open access: yesEcological Indicators
Remote sensing (RS) technology is an indispensable tool for grassland degradation monitoring and assessment at the regional scale. However, most of these remote sensing-based grassland degradation applications rely on a limited set of common indicators ...
Yuting Chen   +12 more
doaj   +1 more source

Tropical forest degradation in the context of climate change: increasing role and research challenges. [K-2215-01] [PDF]

open access: yes, 2015
While developed countries in temperate regions faced their forest transition about 100 years ago or more, “tropical forest rich” nations still largely depend on forest resources or land clearing for their development.
Chave, Jérôme   +2 more
core  

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