Now showing items 181-200 of 430

    • Dangerous anthropogenic climate change. Are we closer than we think? A 2016 update 

      Obbard, Jeff ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)
      In this presentation, I will outline the fundamentals of climate change science with respect to 'real-world' climate observations, and evidence from the Earth's paleoclimate (climate history) record. In particular, I will ...
    • Winters are changing: snow effects on Arctic and alpine tundra ecosystems 

      Rixen, Christian; Høye, Toke Thomas; Macek, Petr; Aerts, Rien; Alatalo, Juha; ... more authors ( Canadian Science Publishing , 2022 , Article)
      Snow is an important driver of ecosystem processes in cold biomes. Snow accumulation determines ground temperature, light conditions and moisture availability during winter. It also affects the growing season’s start and ...
    • Effects of Coupling Water and Fertilizer on Agronomic Traits, Sugar Content and Yield of Sugarcane in Guangxi, China 

      Wu, Weixiong; Fu, Wuxiang; Alatalo, Juha M.; Ma, Zhanxia; Bai, Yang ( MDPI , 2022 , Article)
      This work is a contribution to applied water and fertilizer coupling efforts aiming at increasing crop productivity on sugarcane plantations through the analysis of average cane yields obtained following main agronomic ...
    • Review of the large branchiopod crustacean fauna of Qatar (Anostraca, Notostraca, Spinicaudata) and adjacent countries 

      Rogers, D. Christopher; Bary, Ekhlas M.M.Abdel; Alatalo, Juha M.; Leitão, Alexandra ( Taylor and Francis , 2022 , Article)
      The large branchiopod crustaceans (Anostraca, Notostraca, and Spinicaudata) of Qatar have only been examined recently. Although 15 nominal species have been reported for the Arabian Peninsula, there is confusion surrounding ...
    • Spatial-temporal pattern of cultivated land productivity based on net primary productivity and analysis of influencing factors in the Songhua River basin 

      Yang, Shiliang; Bai, Yang; Alatalo, Juha M.; Wang, Huimin; Tong, Jinping; ... more authors ( Wiley , 2022 , Article)
      The inefficient utilization of cultivated land puts the productivity of cultivated land in a low development state. The key challenge for the efficient utilization of cultivated land is to clarify how various ...
    • Global maps of soil temperature 

      Lembrechts, Jonas J.; van den Hoogen, Johan; Aalto, Juha; Ashcroft, Michael B.; De Frenne, Pieter; ... more authors ( Wiley , 2022 , Article)
      Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation ...
    • Assessment of leaf morphological, physiological, chemical and stoichiometry functional traits for understanding the functioning of Himalayan temperate forest ecosystem 

      Rawat, Monika; Arunachalam, Kusum; Arunachalam, Ayyandar; Alatalo, Juha M.; Pandey, Rajiv ( Nature Research , 2021 , Article)
      Leaf functional traits support plant survival and growth in different stress and disturbed conditions and respond according to leaf habit. The present study examined 13 leaf traits (3 morphological, 3 chemical, 5 physiological, ...
    • Socio-ecological vulnerability and resilience of mountain communities residing in capital-constrained environments 

      Jha, Shashidhar Kumar; Negi, A. K.; Alatalo, Juha M.; Negi, R. S. ( Springer , 2021 , Article)
      The study evaluated perceived reactions and counter-actions of Himalayan communities to climate change. The evaluation was conducted through identification and characterization of 62 socio-environment-specific indicators ...
    • The Global Soil Mycobiome consortium dataset for boosting fungal diversity research 

      Tedersoo, Leho; Mikryukov, Vladimir; Anslan, Sten; Bahram, Mohammad; Khalid, Abdul Nasir; ... more authors ( Springer , 2021 , Article)
      Fungi are highly important biotic components of terrestrial ecosystems, but we still have a very limited understanding about their diversity and distribution. This data article releases a global soil fungal dataset of the ...
    • Coupling phosphate-solubilizing bacteria (PSB) with inorganic phosphorus fertilizer improves mungbean (Vigna radiata) phosphorus acquisition, nitrogen fixation, and yield in alkaline-calcareous soil 

      Hamid, Khan; Akbar, Waqas Ali; Shah, Zahir; Rahim, Hafeez Ur; Taj, Ali; ... more authors ( Elsevier , 2022 , Article)
      To overcome the problems associated with soil phosphorus (P) insolubility, soil inoculation with phosphate-solubilizing bacteria (PSB) can be used. In a field experiment, we evaluated the efficacy of PSB in enhancing ...
    • Herbal plants- and rice straw-derived biochars reduced metal mobilization in fishpond sediments and improved their potential as fertilizers 

      Sajid, Mehmood; Ahmed, Waqas; Alatalo, Juha M.; Mahmood, Mohsin; Imtiaz, Muhammad; ... more authors ( Elsevier , 2022 , Article)
      Fishpond sediments are rich in organic carbon and nutrients; thus, they can be used as potential fertilizers and soil conditioners. However, sediments can be contaminated with toxic elements (TEs), which have to be immobilized ...
    • Screening Of Some Qatari Plant Extracts For Anti Fungal Activities Of Plant Pathogenic Fungi 

      Mohamed, Ibtihal; Ahmad, Talaat ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)
      The present study aimed to evaluate the antifungal activity of three desert plants extracts grown naturally in Qatar: (Al-rayhan) Ocimum basilicum, Shafallah (Capparis spinosa) and Qwaif(Prosopis juliflora)to study their ...
    • Systematic laboratory approach to produce Mg-rich carbonates at low temperature 

      Al Disi, Zulfa Ali; Zouari, Nabil; Attia, Essam; Al-Asali, Mazen; Al Saad Al-Kuwari, Hamad; ... more authors ( Royal Society of Chemistry , 2021 , Article)
      Dolomite is a common Mg-rich carbonate in the geological record, but the mechanism of its formation remains unclear. At low temperature, the incorporation of magnesium ions into the carbonate minerals necessary to form ...
    • Utilization of Two Microalgae Species, Synechococcus sp. and Cheatoceros sp., for Aquatic Toxicity Assessments in the Qatari Marine Environmen 

      Bacha, Sarah; Saeed, Suhur; Deb, Nandita; Al-Shaikh, Ismail; Al-Abdulla, Mohammed; ... more authors ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Microalgal bioassays are currently used worldwide to help assess the impacts of contaminants on aquatic ecosystems. Algae are particularly important to such assessments because they represent the basic trophic level of the ...
    • Allelopathic effects of Casuarina equisetifolia L. on seed germination of some crop plants and their associated weeds 

      Ahmed, Talaat A.; Al-Sayed, Noura Habeeb ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Casuarina equisetifolia L. is a widespread tree that has been known for its allelopathic potential causing biological inhibition on plant seed germination. Leaf extract of Casuarina equisetifolia L. was evaluated for its ...
    • Environmental contamination in mangrove crustaceans inhabiting Qatari waters 

      Hassan, Hassan; Al-Maslamani, Ibrahim ( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)
      The increasing level of pollutants in the marine environment is a major concern in all countries, in particular where the main diet is seafood. The major goal of this project was to assess the level of pollution and their ...
    • Geochemical composition of dust from Qatar peninsula 

      Al-Ansari, Ebrahim S.; Abdel-Moati, Mohamed A.; Al-Ansi, Mehsin A.; Yigiterhan, Oguz; Al-Shaikh, Ismail; ... more authors ( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)
      Atmospheric dust samples have been collected from different areas in Qatar and analyzed for major and trace element composition. This region of the Arabian Gulf represents an area largely affected by dust from natural and ...
    • Investigation of long-term, basin-scale thermohaline trends in Qatar's marine region in response to environmental and climatic change 

      Husrevoglu, Y. Sinan; Al-Ansari, Ebrahim S. ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      The Arabian Gulf, an economically and geopolitically important marine area, is a semi-enclosed and shallow basin with an average depth 36 m. The Gulf is one of the seasonally warmest (i.e., in summer) and most saline marine ...
    • The Indigenous Qatari Marine Copepod, Euterpina Acutifrons: A Promising Marine Invertebrate Model Organism for Aquatic Eco-Toxicological Studies 

      Deb, Nandita; Saeed, Suhur; Bacha, Sarah; Warren, Christopher; Dupont, Jennifer ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      An important objective of aquatic toxicological assessments is to evaluate the effects of water-borne toxic compounds on organisms which play a crucial role in aquatic communities. In marine ecosystems, copepods have a ...
    • Chemical Characterization and Source Identification of Beached Oil from Two Areas Along the North-Western Coast of Qatar 

      Alkaabi, Nasser; Alghouti, Mohammad; Zouari, Nabil; Solling, Theis; Bach, Steffen; ... more authors ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Over the years there have been several reports of oil spills affecting particularly the northern coast of Qatar. In most cases, the source of oil spills is not identified. The spilled oils are very resistant to degradation ...