Results 61 to 70 of about 28,487 (291)

Reduced Runoff in the Upper Yangtze River Due To Comparable Contribution of Anthropogenic and Climate Changes

open access: yesEarth's Future
The changing climate and intensifying human activities have made an impact on the hydrological processes in the upper Yangtze River (UYR), but quantifying their effects remains uncertain.
Feng Zeng   +9 more
doaj   +1 more source

X-ray based tree ring analyses [PDF]

open access: yes, 2004
In this thesis, two x-ray based dendro-analyses (batch-wise microdensitometry and energy dispersive x-ray fluorescence (EDXRF)) and the conditions under which these methods could be used on the two typical boreal conifers Norway spruce (Picea abies (L ...
Lindeberg, Johan
core  

Benthic and hyporheic invertebrate community responses to seasonal flow recession in a groundwater-dominated stream [PDF]

open access: yes, 2011
Natural hydrological variability in lotic ecosystems can include prolonged periods of flow recession. A reduction in discharge is accompanied by abiotic changes in benthic and hyporheic habitats, often including reductions in s habitat availability ...
Banks   +45 more
core   +1 more source

Fertilization influences overyielding through dominance of species with high specific leaf area in young tree mixtures

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract In the context of anthropogenic eutrophication of the biosphere, understanding the impact of nutrient addition on plant diversity–productivity relationships remains a major challenge.
Dai F. Saito   +7 more
wiley   +1 more source

Mapping a Paddy Rice Area in a Cloudy and Rainy Region Using Spatiotemporal Data Fusion and a Phenology-Based Algorithm

open access: yesRemote Sensing, 2021
The timely and accurate mapping of paddy rice is important to ensure food security and to protect the environment for sustainable development. Existing paddy rice mapping methods are often remote sensing technologies based on optical images. However, the
Rongkun Zhao   +5 more
doaj   +1 more source

Book reviews and Book notice [PDF]

open access: yes, 1968
Book reviews and Book notice from Volume 2, Number 2, 1968 of Earth Science ...
Waikato Geological Society
core   +1 more source

Climatic–Anthropogenic Synergy Drives Escalating Minimum Area Requirements and Connectivity‐Protection Mismatch in a Karst‐Endemic Primate

open access: yesIntegrative Zoology, EarlyView.
Climate change and anthropogenic activities drive antagonistic degradation of landscape connectivity for endangered François’ langur (1987–2024), causing 48.8% habitat loss, north‐south fragmentation, and centroid migration (1.2 km/yr). Despite protected areas buffering connectivity, static management fails dynamic priority habitats; we propose ...
Guangmei Yang   +5 more
wiley   +1 more source

Directory of Water Related Courses Offered at Colleges and Universities in Arkansas as of November 1998 [PDF]

open access: yes, 1998
This publication lists the water and water-related courses at several universities and colleges in Arkansas as reported during the Fall of 1 998. It is anticipated that users of this directory will extend beyond college students, and will include ...
Steele, Kenneth F.
core   +2 more sources

Retrospective Analysis of Wood Anatomical Traits Reveals a Recent Extension in Tree Cambial Activity in Two High-Elevation Conifers [PDF]

open access: yes, 2017
The study of xylogenesis or wood formation is a powerful, yet labor intensive monitoring approach to investigate intra-annual tree growth responses to environmental factors.
Angela L. Prendin   +5 more
core   +2 more sources

MERCURY AND CHROMIUM DISTRIBUTION IN SOIL NEAR MAROS KARST ECOSYSTEM

open access: yesCarpathian Journal of Earth and Environmental Sciences, 2020
The legal karst protection in Indonesia seems unclear where karst is still seen as a resource that can be utilized, not as an ecosystem that must be preserved. In this study, a total of 20 soil samples were collected around industries and abandoned mine of Maros Karst Ecosystems. Quantitative assessment is done by measuring the factor of single element
Annisa Utami RAUF, -   +2 more
openaire   +1 more source

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