السجلات المعروضة 221 -- 240 من 469

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

      Obbard, Jeff ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference)
      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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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, ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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)
      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)
      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 ...
    • 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)
      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 ...
    • Observations of hydrographic properties, dissolved oxygen (DO) and chlorophyll-A (Chl-a) (phytoplankton biomass) within the exclusive economic zone (EEZ) of Qatar (central Arabian Gulf) 

      Rakib, Mohammad Fazle; Al-Ansari, Ibrahim A. M. Saleh ( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference)
      In situ observations of physical, chemical, and biological parameters of the Qatari water column were conducted to understand the temporal (seasonal) and spatial (regional) variability in the vertical and horizontal ...
    • Marine collection in Qatar - basis for biodiversity management 

      Giraldes, Bruno Welter; Al-Maslamani, Ibrahim; Chatting, Mark; Smyth, David ( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference)
      Biological Collections, which deal directly with identifying and documenting biodiversity, have a major role in assisting biodiversity management. They form the basis for research, documenting flora and fauna and creating ...
    • 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)
      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 ...
    • Investigating the biodiversity and current status of the historically renowned oyster beds of Qatar 

      Smyth, David; Al-Maslamani, Ibrahim; Giraldes, Bruno; Chatting, Mark ( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference)
      The "Pearl Oyster" Pinctada radiata has long been associated with the nation of Qatar. Historically pearl oysters were harvested in huge quantities in the Arabian Gulf with Qatari pearls making up a large percentage of the ...
    • Contaminant metals in costal marine sediment along the Doha Bay, Qatar 

      Al-Naimia, Hajer A.; Al-Ghoutib, Mohammad A.; Al-Shaikha, Ismail; Al-Yafeb, Mehsin; Al-Meer, Saeed ( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference)
      Heavy metals pollution in marine environments has become a worldwide problem with the fast industrial development in the east coastal region of Qatar, especially in the Doha bay area. Heavy metals are expected to be presented ...