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04
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  • Heatwave and Climate Change Having Negative Impact on Our Soil Say Experts

    The recent heatwave and drought could be having a deeper, more negative effect on soil than we first realised say scientists.

    >> Read the Full Article
  • Animals and Fungi Foster Forest Multifunctionality

    A new study shows that, in addition to the diversity of tree species, the variety of animal and fungus species also has a decisive influence on the performance of forests. Forest performance comprises many facets besides timber production, such as carbon storage and climate regulation. The study is based on ten years of research in species-rich subtropical forests. A team of researchers led by the German Centre for Integrative Biodiversity Research (iDiv) and the Martin-Luther-University Halle-Wittenberg has published the results in the new issue of Nature Communications. They illustrate that biodiversity must be viewed as a whole in order to maintain the performance of forests.

    >> Read the Full Article
  • UTSA Research Confirms Fecal Bacteria Contaminated Surface Water Quality Following Hurricane Harvey

    Hurricane Harvey was an unprecedented rain event that delivered five consistent days of flooding and storms to Texas last August. Now, research from UTSA Assistant Professor Vikram Kapoor in civil and environmental engineering has substantiated that the storm caused high levels of fecal contamination to be introduced into waterways draining into the Gulf of Mexico and impairing surface water quality.

    >> Read the Full Article
  • Soil Phosphorus Availability and Lime: More Than Just pH?

    Plants can’t do without phosphorus. But there is often a ‘withdrawal limit’ on how much phosphorus they can get from the soil. That’s because phosphorus in soils is often in forms that plants can’t take up. That affects how healthy and productive the plants can be.

    >> Read the Full Article
  • River Complexity Maintains Regional Population Stability

    An international group of researchers has demonstrated that branching complexity of rivers affects regional population stability and persistence in nature, contrary to current theories which suggest the importance of an ecosystem’s size.

    >> Read the Full Article
  • Native Bison Hunters Amplified Climate Impacts on Prairie Fires

    Native American communities actively managed North American prairies for centuries before Christopher Columbus' arrival in the New World, according to a new study by researchers from Southern Methodist University and the University of Arizona.

    >> Read the Full Article
  • Mathematical Analysis Explains Transpiration-driven Sap Flow in Coniferous Trees

    The exact science of tree sap transport has puzzled plant physiologists for many years. Sap’s migration throughout tree trunks and branches is linked heavily to transpiration, the movement and subsequent evaporation of moisture from plants. As carbon dioxide diffuses inward from the air to plant leaves, a vapor pressure deficit between the leaf interior and surrounding atmosphere causes evaporation. This generates tension within leaf cell walls that is then transmitted via sap to tracheids — conductive hollow wood cells with vertical grooves that comprise the trunk, stem, and branches of trees and are collectively called sapwood. The resulting negative sap pressure draws water from roots to leaves, sometimes to heights of over 300 feet. 

    >> Read the Full Article
  • Time is Running Out in the Tropics - Researchers Warn of Global Biodiversity Collapse

    A global biodiversity collapse is imminent unless we take urgent, concerted action to reverse species loss in the tropics, according to a major scientific study in the prestigious journal Nature.  

    >> Read the Full Article
  • Harvey Samples Saddled with Antibiotic-Resistant Genes

    Rice University scientists have released the first results of extensive water sampling in Houston after the epic flooding caused by Hurricane Harvey. They found widespread contamination by E. coli, likely the result of overflow from flooded wastewater treatment plants.

    >> Read the Full Article
  • Manure Slipping Through (Soil) Cracks

    Add just enough fertilizer, and crops thrive. Add too much, and you may end up with contaminated surface and groundwater.

    >> Read the Full Article

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