Results 61 to 70 of about 54,510 (285)

Current Status of Acid Soils Under Different Landform Types in an Expanding Equatorial Agricultural Region

Land
This study assesses the current status of selected soil properties of an expanding equatorial agricultural region (Arauca, Colombia) across six landscapes, with the final focus being on evaluating overall soil quality.
Juan David Mahecha-Pulido, Juan Manuel Trujillo-González, Marco Aurelio Torres-Mora, Francisco J. García-Navarro, Raimundo Jiménez-Ballesta   +4 more
doaj   +1 more source

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Wawrzyniak Tomasz, Oryński Szymon, Marciniak Artur, Osuch Marzena   +3 more
wiley   +1 more source

The relationship between land management and the nature of helophytes in small lakes (Eastern Poland)

Limnological Review, 2016
The aim of this study was to determine the relationship between the development of rush zones in small lakes and the utilization and condition of surrounding lands. Generally, the width of the helophyte zone increased along shores with gentle slopes (>5˚)
Sender Joanna, Grabowski Magda
doaj   +1 more source

Relationship between soil morphology and variability of upland degradation in Bogowonto Watershed, Central Java, Indonesia

Journal of Degraded and Mining Lands Management, 2020
Land-use change and lack of conservation in Bogowonto Watershed area have caused land degradation due to erosion and landslides. The rate of land degradation can be measured through the morphological characteristics of the soil and landscape.
Krishna Aji, Azwar Maas, Makruf Nurudin
doaj   +1 more source

Certain Caddo Sites in the Ouachita Mountains of Southwestern Arkansas [PDF]

, 2004
In the last few years, we have had the opportunity to study a number of prehistoric Caddo Indian sites in the Ouachita Mountains of southwestern Arkansas through conducting archeological surveys of more than 2700 acres at three lakes constructed and ...
Nelson, Bo, Perttula, Timothy K.
core   +1 more source

A comparative Digital Soil Mapping (DSM) study using a non-supervised clustering analysis and an expert knowledge based model - A case study from Ahuachapán, El Salvador [PDF]

, 2020
DSM is the inference of spatial and temporal soil property variations using mathematical models based on quantitative relationships between environmental information and soil measurements.
Casares, Francisco, Keough, Adam, Martín-López, Javier M., Quintero, Marcela, Silva, Mayesse da, Valencia, Jefferson   +5 more
core   +1 more source

Associating Local‐Scale Physical Habitat Assemblages With Reach‐Scale Stream Hydrogeomorphological Types in Mountain Headwater Catchments

River Research and Applications, EarlyView.
ABSTRACT Building an understanding of river ecosystems often involves integrating information from different locations, spatial scales and points in time. Geomorphologists and ecologists have long considered ways to explore river ecosystems at different, hierarchical, spatial scales so that features observed locally can be linked to the character of ...
Edward J. Cox, Angela M. Gurnell, Michael J. Bowes, Michael Bruen, Sinead Hogan, John J. O'Sullivan, Mary Kelly‐Quinn   +6 more
wiley   +1 more source

Novel Wall Reef Identification Method Using Landsat 8: A Case Study of Microcontinent Areas in Wangiwangi Island, Indonesia

Geosciences
This study develops a geomorphological identification methodology for wall reefs in the microcontinental environment of Wangiwangi Island, Indonesia, using medium-resolution Landsat 8 satellite imagery and morphological analysis based on Maxwell’s ...
Wikanti Asriningrum, Azura Ulfa, Edy Trihatmoko, Nugraheni Setyaningrum, Joko Widodo, Ahmad Sutanto, Suwarsono, Gathot Winarso, Bachtiar Wahyu Mutaqin, Eko Siswanto   +9 more
doaj   +1 more source

New Archaeological Investigations at the M. S. Roberts Site (41HE8) in the Caddo Creek Valley in Henderson County, Texas [PDF]

, 2016
In this article, we discuss new archaeological investigations at the M. S. Roberts site (41HE8), likely a 14th to early 15th century A.D. Caddo period mound center along Caddo Creek in the upper Neches River basin in Henderson County in East Texas.
McKee, Arlo, Nelson, Bo, Perttula, Timothy K., Walters, Mark   +3 more
core   +1 more source

Apex predators exploit advantageous snow conditions across hunting modes

Journal of Animal Ecology, EarlyView.
Advantageous snow conditions—in terms of snow depth and density—are among the most important features of the winter landscape for two apex predators, regardless of hunting strategy. In a warming climate, the knock‐on effects of a diminishing snowpack may reduce the hunting success of multiple large carnivore species.
Benjamin K. Sullender, Taylor R. Ganz, Ross Mower, Jessica D. Lundquist, Brian N. Kertson, Thomas M. Newsome, Aaron J. Wirsing, Laura R. Prugh   +7 more
wiley   +1 more source