We assessed the relative effectiveness of pitfal ls , s ingle-ended, and double-ended funnel traps at 12 replicate sites in sand pine scrub using drift fence arrays. Pitfalls captured fewer species but yielded more individuals of many species and higher average species r ichness than funnel traps. Pit fal ls and funnel traps exhibited differential capture bias probably due to differences in beh...

Wind erosion is a key global environmental problem and has many adverse effects. The Mu Us Sandy Land of northern China characterized by an arid climate, where vegetation patches bare sand are usually distributed mosaically, aeolian activities occur frequently. Vegetation plays significant role in controlling wind erosion. Artemisia ordosica the most dominant native plant species Land. It urgen...

The addition of charcoal (or biochar) to soil has significant carbon sequestration and agronomic potential, making it important to determine how this potentially large anthropogenic carbon influx will alter ecosystem functions. We used column experiments to quantify how hydrologic and nutrient-retention characteristics of three soil materials differed with biochar amendment. We compared three h...

Phasons are special hydrodynamic modes that occur in quasicrystals. The trajectories of particles due to a phasonic drift were recently studied by Kromer et al. (Phys. Rev. Lett. 108, 218301 (2012)) for the case where the particles stay in the minima of a quasicrystalline potential. Here, we study the mean motion of colloidal particles in quasicrystalline laser fields when a phasonic drift or d...

Directional antennas offer many potential advantages for wireless networks such as increased network capacity, extended transmission range and reduced energy consumption. Exploiting these advantages requires new protocols and mechanisms at various communication layers to intelligently control the directional antenna system. With directional antennas, many trivial mechanisms, such as neighbor di...

Renewable energy installations and storage solutions require significant quantities of critical raw materials such as nickel, cobalt rare earth metals. The supply chains these face many difficulties, the continuous decrease mineral ore grades on land. In view complications, motivation to search for new resources has grown, with deep sea being seen a potential source minerals. Polymetallic nodul...