Results 81 to 90 of about 257,482 (231)

Topographic and Climatic Determinants of Soil Organic Carbon Across Landscapes: A Meta‐Analysis

Land Degradation &Development, EarlyView.
ABSTRACT The soil is the greatest natural store of organic carbon, holding between 1500 to 1550 Pg C of organic carbon at the top 100 cm of the soil globally—roughly twice the carbon pool in the atmosphere. The spatial distribution of this stock is controlled by a complex chain of controls: topographic position regulates the hydrological redistribution,
Vishal Sharma, Syed Hujjat ul Baligah, Tajamul Islam Shah, Shahid Shuja Shafai, Owais Bashir, Syed Sheraz Madhi, S. Naresh Kumar, Ayyandar Arunachalam, Shabir Ahmed Bangroo   +8 more
wiley   +1 more source

The Effect of Nitrogen and Phosphorus Fertilization on Plant Community Along Chronosequences of Reclaimed and Unreclaimed Postmining Soils After Coal Mining

Land Degradation &Development, EarlyView.
ABSTRACT Nitrogen and phosphorus availability drive plant community composition, productivity, and ecosystem functioning. During succession, nutrient availability typically changes as organic matter accumulates in the soil, influencing both nitrogen and phosphorus pools. We assessed nutrient limitation along postmining chronosequences (10–50 years old),
Mateusz Rawlik, Ondřej Mudrák, Cecilie Tesnerová, Jan Frouz   +3 more
wiley   +1 more source

Forest Vapor Pressure Deficit Sensitivity: A Potential Indicator of Soil Carbon Stability Under Atmospheric Drying

Land Degradation &Development, EarlyView.
ABSTRACT This Short Report examines an underexplored link between atmospheric drying and soil organic carbon (SOC) stability. Rising atmospheric vapor pressure deficit (VPD) is becoming an increasingly important hydroclimatic stressor for terrestrial ecosystems.
Anquan Xia, Xiang Wei, Ma Cheng, Zhihong Xu, Tong Li   +4 more
wiley   +1 more source

Spectral Evidence for Recent/Ongoing Activity in Mercury’s Praxiteles Basin

The Planetary Science Journal
Mercury’s surface, as revealed by the MESSENGER probe, lacks distinctive absorption features in the visible–near-infrared spectral range, except for hollows that display a 630 nm feature ascribed to sulfides.
Anna Galiano, Giovanni Munaretto, Deborah L. Domingue, Cristian Carli, Gianrico Filacchione, Valentina Galluzzi, Salvatore Buoninfante, David Rothery, Fabrizio Capaccioni, Mario D’Amore, Alessandro Maturilli, Sebastien Besse, Océane Barraud, Lauren Jozwiak, Antti Penttilä, Oleg Abramov   +15 more
doaj   +1 more source

Lunar and Planetary Science 39

, 2008
This conference included special sessions on: MESSENGER at Mercury, Results from Kaguya (SELENE) Mission to the Moon, and Lunar Science: Past, Present, and Future.

core  

Particle‐Scale Mechanics of a Regolith‐Type Soil

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The existing studies have reported that the surface of Mars shows the presence of materials having igneous origin, including basalt and regolith‐type coarse soils. These findings are affected by significant uncertainties and, therefore, the selection of simulants for various exploration applications, including surface mobility of rovers ...
Vincenzo Nardelli, Chencheng Wang, Matthew Richard Coop   +2 more
wiley   +1 more source

Large Meteorite Impacts and Planetary Evolution [PDF]

, 1992
One of the major paper topics was the Sudbury project.sponsored by Barringer Crater Company ... [and others]PARTIAL CONTENTS: Melt Production in Large-Scale Impact Events: Calculations of Impact-Melt Volumes and Crater Scaling / M.J.

core  

Disentangling planetary orbits from stellar activity in radial-velocity surveys [PDF]

, 2013
The majority of extra-solar planets have been discovered (or confirmed after follow-up) through radial-velocity (RV) surveys. Using ground-based spectrographs such as High Accuracy Radial Velocity Planetary Search (HARPS) and HARPS-North, it is now ...
Segransan, Damien, Pollacco, Don, Fares, R, Pollacco, D, Queloz, D., Haywood, R.D., Pollacco, D., Gillon, M, Gillon, M., Barros, SCC, Lanza, AF, Pepe, F., Cameron, A. Collier, Hatzes, A., Ségransan, D., Lovis, C, Lovis, Christophe, Moutou, C, Barros, S. C. C., Santerne, A., Unruh, Y., Haywood, R. D., Unruh, Y, Fares, R., Segransan, D, Moutou, C., Deleuil, M., Barros, S.C.C., Cameron, AC, Lanza, A.F., Pepe, F, Deleuil, M, Haywood, RD, Gillon, Michaël, Pepe, Francesco Alfonso, Santerne, A, Queloz, Didier, Lovis, C., Cameron, A.C., Hatzes, A, Lanza, A. F., Queloz, D   +41 more
core   +1 more source

A Generic Approach to Creating a National Soil Security Strategy

Sustainable Development, EarlyView.
ABSTRACT Soil is a living and non‐renewable resource that underpins our very existence. It produces our food, filters our water, stores vast amounts of carbon, cycles essential nutrients, and sustains the rich tapestry of biodiversity on which our planet depends.
Alex McBratney, Pasquale Borrelli, Sandra J. Evangelista, Julia Feeth, Damien Field, Nicolas Francos, Irene Heuser, Anilkumar Hunakunti, Daniel Irving, Thilini Jayasekara, Bruce Lascelles, Fatima Maria de Souza Moreira, Budiman Minasny, Cristine L. S. Morgan, Wartini Ng, Julio C. Pachón Maldonado, Mercedes Román Dobarco, Amin Sharififar, Quentin Styc, Mara Thiene, David Watt, Jae E. Yang   +21 more
wiley   +1 more source

Imaging Spectroscopy: Earth and Planetary Remote Sensing with the PSI Tetracorder and Expert Systems from Rovers to EMIT and Beyond

The Planetary Science Journal
A system for rapid analysis of spectroscopy data with emphasis on planetary surfaces, both imaging and single-spectrum data, is described. The system, called Tetracorder, is commanded by an expert system developed by expert spectroscopists.
Roger N. Clark, Gregg A. Swayze, K. Eric Livo, Philip G. Brodrick, Eldar Noe Dobrea, Srinivasan Vijayarangan, Robert O. Green, David Wettergreen, Alberto Candela, Amanda Hendrix, Carlos Pérez García-Pando, Neil C. Pearson, Melissa D. Lane, Adolfo González-Romero, Xavier Querol, the EMIT and TREX teams   +15 more
doaj   +1 more source