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Biodiversity indices

Xem 1-20 trên 52 kết quả Biodiversity indices
  • In the rainy and dry seasons the algal taxonomic compositions were very different, with prevailing diatoms in the winter and cyabobacteria and greens in summer. Bio-indication shows that the taxonomic preference for the self-purification process was more intensive during the rainy season, while the low level of river water in the dry season stressed the algal community.

    pdf20p vibasque27 27-03-2019 9 0   Download

  • Hot-spot biodiversity is a concentrated site of high species diversity, high species endemicity, and habitat uniqueness. Biodiversity disperses unevenly across the global, regional and regional scope. Hot-spot biodiversity developed into an approach to assessing the concentration of biodiversity at certain limits. The biodiversity hot-spot approach is conducted using indicator species such as bird species that are used as ecotourism development for sustainable forest exploitation.

    pdf18p cothumenhmong1 08-12-2019 16 0   Download

  • Stem rot of rice (Oryza sativae L.) caused by Sclerotium oryzae Catt. is found to occur frequently in Manipur infecting all cultivated lowland rice cultivars and become a major concern in rice production. Local strains of Pseudomanas fluorescens and Trichoderma collected from rice fields of Imphal East and Imphal West districts of Manipur were screened for their ability to control S. oryzae and production of different biocontrol mechanisms under laboratory conditions. Further, combined application of talc formulations of selected strains of P. fluorescens IE 62 and T.

    pdf14p cothumenhmong1 11-12-2019 1 0   Download

  • Earthworms are one of the most important fauna of agroecosystems and they dominate the biomass of invertebrates in many temperate and tropical regions of the world. As earthworms have variable effects on the physical, chemical and biological properties of the soil they can be used as indicators of soil characteristics. Hence, the present study was carried out in three locations at Tiruchirappalli, the central Tamil Nadu.

    pdf5p kethamoi5 03-06-2020 4 0   Download

  • In response to increasing concerns about degradation of natural resources and the sustainability of agricultural production potentials in many poor regions of the world, many national and international organisations have initiated research and development programmes for natural resource management (NRM).

    pdf399p huetay_1 28-02-2013 67 16   Download

  • They clam approximately 500 species, widely distributed in coastal intertidal zone of tropical temperate countries. Our country has about 40 species of 7 breed groups, distributed along the coast from north to south. Northern coastal areas have clam oil (Meretrix lime), clam password (Meretrix llusoria Rumplius). Southern coastal areas have clam (Meretrix lyrata Sowerby). Clams are mollusks team has great potential in the tide country. Culture technique is not complicated, short cycle, investment less valuable export.

    pdf46p xinh_la 10-02-2012 64 6   Download

  • Enhanced Business Reporting is comprised of voluntary, globally recognized guidelines for providing richer disclosure of business information, allowing companies to better communicate current and expected performance while giving the investment community and other stakeholders the information they need to make better decisions. This includes financial statements, key performance indicators based on industry-specific definitions, and company-specific information about strategy, plans, opportunities and risks....

    pdf7p taisaovanchuavo 26-01-2013 49 3   Download

  • According to the benthic algal composition and indicator species, it is estimated that Karagöl Lake has mesotrophic lake characteristics. This is the first study of benthic algal flora of Karagöl Lake and marks a significant contribution to the knowledge of Karagöl–Sahara National Park’s aquatic biodiversity.

    pdf17p vikimsa 22-02-2019 7 0   Download

  • Phytoplankton and planktonic centric diatoms of Lake Stechlin have been extensively studied, while attached diatoms have received much less scientific interest. In the present study, the composition of benthic diatoms and their diversity metrics were determined and compared along the shoreline of the lake in spring 2013 and autumn 2014.

    pdf15p vikimsa 22-02-2019 12 0   Download

  • Phytoplankton dynamics plays a vital role in determining the productivity of any coastal ecosystem. In this study, temporal variability in phytoplankton composition and diversity was assessed with respect to the physico-chemical parameters of water in major dol net fishing grounds of two spatially adjacent tidal creeks (Thane and Vasai) of Maharashtra. The phytoplankters identified belonged to 84 and 69 species in Thane and Vasai creeks, respectively.

    pdf16p chauchaungayxua5 05-05-2020 2 0   Download

  • : High concentrations of petroleum hydrocarbon (PHC) pollution can be hazardous to human health and leave soils incapable of supporting agricultural crops. A cheap solution, which can help restore biodiversity and bring land back to productivity, is cultivation of high biomass yielding willow trees.

    pdf18p vihashirama2711 21-05-2020 7 0   Download

  • The present study was made to find out the health status of a wetland Rajar Beel, North 24 Parganas, West Bengal, India in relation to physicochemical properties of water. This wetland is rich in aquatic biodiversity. The study focused on the seasonal fluctuation of physicochemical parameters of water and diversity of fish fauna during pre-monsoon, monsoon and post-monsoon during March 2019 to February 2020.

    pdf10p trinhthamhodang11 27-04-2021 6 0   Download

  • In  the  past,  environmental  goods  and  services were  seen  as  having  limited  economic  importance.  Now, environmental issues and activities pervade every aspect of our economic life and performance  and  are  subject  to  challenging  national  and  international  targets,  strict  monitoring  regimes  and  ongoing  discussion  and  debate  in  the  media.  As  understanding  of  environmental  challenges  has  grown, so too has appreciation of the size of the market and the associated business opportunities.

    pdf79p dangsuynghi 15-03-2013 44 8   Download

  • The USFS Forest Inventory and Analysis (FIA) program seeks to assess the condition and trend of the forests of the U.S. FIA recently assumed responsibility for all former Forest Health Monitoring program (FHM) plot work on a national level, and is currently active in 32 states. Lichen community monitoring was included in FIA in order to address key assessment issues such as the impact of air pollution on forest resources, spatial and temporal trends in biodiversity, and the sustainability of timber harvesting.

    pdf55p saimatkhauroi 01-02-2013 50 5   Download

  • The European Commission is expected to finalise the bulk of the AIFMD level 2 implementing measures in the second trimester of 2012. Then the onus will be on the Luxembourg lawmakers to push ahead in the remaining months of 2012 to draft the new legal texts required to transpose the EU framework into local law. The ultimate deadline to transpose the AIFMD is July 2013.

    pdf12p lenh_hoi_xung 01-03-2013 51 5   Download

  • This paper gives insights into the BA segment with a special focus on Germany. First we introduce the concept of BA financing. In a second step we analyse the BA market in Germany. We conclude that there is a significant excess demand for early stage financing. In the third part of this paper we explain, how the EIF aims to address this by providing a flexible and timely support to the BAs market through establishing an intermediation infrastructure to efficiently leverage this investor base.

    pdf27p hongphuocidol 04-04-2013 40 5   Download

  • Many indicators regarding the health of the world’s environment remain firmly in the red. Trends such as climate change, water scarcity, air pollution, biodiversity loss and ecosystem degradation all continue to threaten our finite stock of natural capital and the ability of our economy to provide sustainable growth and prosperity for all. A great deal of this environmental damage is caused by the way we do business. If we are to create a truly sustainable global economy, then we must change our economic models so that business can become part of the solution, not part of the problem. ...

    pdf16p yeutinh98 26-09-2012 53 4   Download

  • To date, most mutual fund performance evaluations have been fairly simplistic: how has a fund performed relative to “the market”? The Standard & Poor’s 500 Stock Index is usually used as a proxy for the market, despite the fact that it accounts for only about 70% of the capitalization of the U.S. stock market and is dominated by corporations with gigantic market capitalizations. (Its largest 25 stocks account, on average, for 1% of the entire market; the 6500 “non-500” stocks in the market have an average weight of 4/1000 of 1%.) But today, many funds resemble...

    pdf15p quaivatdo 18-11-2012 51 4   Download

  • You may be asked to choose between a “tax-qualified” long-term care insurance policy and one that is “non-tax-qualified.” There are important differences between the two types of policies. These differences were created by the Health Insurance Portability and Accountability Act (HIPAA). A federally tax-qualified long-term care insurance policy, or a qualified policy, offers certain federal income tax advantages. If you have a qualified long-term care policy and you itemize your deductions, you may be able to deduct part or all of the premium you pay for the policy.

    pdf55p thangbienthai 23-11-2012 56 4   Download

  • The number of alerts the Threat Analyzer can display has a direct correlation to your system's memory. Since you can access the Central Manager from the local host or a remote connection, this depends on the machine used for the Central Manager logon. The memory overhead for alerts, including the code base and Java virtual machine, is approximately 1 KB per alert when there are at least 10,000 alerts in the Threat Analyzer (more KBs when there are fewer alerts). McAfee recommends 1 GB of RAM in your system which enables you to handle up to 1,000,000 total alerts. If...

    pdf47p cao_can 02-01-2013 49 4   Download

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