Nông nghiệp không tưới chiếm 69% diện tích ngũ cốc toàn cầu, góp phần đáp ứng nhu cầu lương thực trong tương lai. Mô hình IMPACT-WATER dự báo sản xuất ngũ cốc không tưới sẽ vẫn đóng vai trò quan trọng, chiếm khoảng một nửa mức tăng sản lượng ngũ cốc từ 1995 đến 2025. Lợi thế của sản xuất ngũ cốc không tưới là do sự chiếm ưu thế của loại hình này ở các nước phát triển, vốn là nơi có hơn 80% diện tích ngũ cốc không tưới và nhiều đất sản xuất ngô và lúa mì năng suất cao. Ngược lại, ở các nước đang phát triển, nơi sản xuất ngũ cốc không tưới dự kiến chiếm đến 40% diện tích trồng trọt, việc tưới tiêu lại đóng vai trò quan trọng hơn với sản lượng ngũ cốc dự kiến sẽ đến từ các khu vực được tưới tiêu. Tuy nhiên, cải thiện năng suất và sản lượng ngũ cốc không tưới có thể bù đắp cho việc giảm đầu tư vào tưới tiêu, nhưng điều này sẽ là một thách thức lớn.
Ngày tải lên: 09/03/2014, 00:20
... points in the space-time scale in which we all dwell They differ in the factors they take into account in forecasting the state of the world, how far they look into the future, and ... the United States are the two leading grain producers of the world The two countries grow a disproportionate share of the food from which the world population derives most of ... possibility The superbugs have also given a new shot of hope to exobiologists, scientists who look for evidences of life on other worlds Another stimulus is the. .. to the full and
Ngày tải lên: 05/07/2014, 07:31
The future of life sciences industries aftermath of the global recession
... sustained Robert Go DTT Life Sciences and Health Care Industry Group Leader The future of the life sciences industries Preface The future of the life sciences industries: Aftermath of the global recession ... Don’t know 11% 24 The future of the life sciences industries What will be the main legacies of the global economic recession on the size and shape of the life sciences industries in the next five years? ... 18 The future of the life sciences industries The recession legacy Are the effects of the global recession fundamentally altering the future environment of the
Ngày tải lên: 04/12/2015, 00:24
Research for a Future in Space: The Role of Life and Physical Sciences ppt
... National Academy of Sciences. All rights reserved. Research for a Future in Space: The Role of Life and Physical Sciences The SSB is a unit of the National Research Council of the National Academies, ... Copyright © National Academy of Sciences. All rights reserved. Research for a Future in Space: The Role of Life and Physical Sciences Research for a Future in Space The Role of Life and Physical Sciences ... Academy of Sciences All rights reserved 15 Research for a Future in Space: The Role of Life and Physical Sciences The Nature of Fluid P Fo of W str the wh
Ngày tải lên: 29/06/2014, 09:20
Lecture AP Biology Chapter 25 The history of life on earth
... to know: • A scientific hypothesis about the origin of life on Earth • The age of the Earth and when prokaryotic and eukaryotic life emerged • Characteristics of the early planet and its atmosphere ... common ancestor for E & F The half -life of carbon-14 is about 5600 years A fossil with ¼ the normal proportion of C14 is probably _ years old Chapter 25 The History of Life on Earth What you ... • Uses order of rock strata to determine relative age of fossils • Measure decay of radioactive isotopes present in layers where fossils are found • Half -life: # of years for 50% of original sample
Ngày tải lên: 18/05/2017, 08:50
Lecture AP Biology Chapter 26 Phylogeny and the tree of life
... are the frequencies of the alleles (B and b)?b.What are the frequencies of the different genotypes (BB, Bb, and bb)?Trang 2Chapter 26Phylogeny and the Tree of LifeTrang 3What you need to know:? ?The ... taxonomic categories and how they indicate relatedness.•How systematics is used to develop phylogenetic trees.? ?The three domains of life including their similarities and their differences.Trang 4SystematicsTrang ... indicate timeTrang 19Draw a phylogenetic tree based on the data below Draw hatch marks on the tree to indicate the origin(s) of each of the 6 characters.Trang 20Answer:Trang 21Unrooted treeCircular
Ngày tải lên: 18/05/2017, 08:50
Lecture An introduction to collective bargaining and industrial relations (4e) – Chapter 15: The future of U.S. labor policy and industrial relations
... American labor law does not change often or easily • The? ?NLRA was only passed as one? ?of? ?the? ?last major reforms? ?of? ? the? ?New Deal It took? ?the? ?deep economic and social crisis? ?of? ?the? ?Great Depression and fear that capitalism might be at risk to build ... Reliance on market forces and deregulation presumes that? ?the? ?market will lead to outcomes society finds acceptable, which may not be? ?the? ?case Limited health care and? ?the? ?"WalMartization"? ?of? ?the? ?U.S. are some criticisms • In? ?the? ?early part? ?of? ?the? ?20th century,? ?the? ?Institutionalists? ?of? ?the? ?Wisconsin ... Costs to Workers? ?of? ?Adjusting to Economic Changes Any? ?future? ?labor policy must address? ?the? ?fact that union membership is heavily concentrated in? ?the? ?oldest and most mature sectors? ?of? ?the? ?economy • These sectors are? ?the? ?most exposed to international
Ngày tải lên: 19/01/2020, 00:17
The future of federal household surveys a workshop summary
... secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public The Institute acts under the responsibility given to the ... summarized one of the main themes of the workshop as the importance of survey content integration One aspect of this is the use of common definitions for the concepts measured—to the extent that ... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences,
Ngày tải lên: 20/01/2020, 07:52
The future of federal household surveys a workshop summary
... secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public The Institute acts under the responsibility given to the ... summarized one of the main themes of the workshop as the importance of survey content integration One aspect of this is the use of common definitions for the concepts measured—to the extent that ... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences,
Ngày tải lên: 03/03/2020, 09:51
Intelligent life in the universe from common origins to the future of humanity(1)
... in the interdisciplinary fields of astrobiology and biogeophysics This encompasses all aspects of research into the origins of life – from the creation of matter to the emergence of complex life ... convincingly prove the existence of nonhuman intelligent beings? Is the number of planets on which life is able to evolve too small, or is the formation of life − and particularly intelligent life − an ... 5.5.2 The Molecular Clock 5.5.3 The Evolutionary Tree of Bacteria 5.5.4 The Timetable of the Evolution of Life 5.5.5 Sequencing and the
Ngày tải lên: 07/09/2020, 11:20
SHAPING THE FUTURE OF ASSESSMENT
... Storm” Drives the Adoption of Mobile Learning Content Suppliers Product s Rapid Evolution of Powerful Wireless Handheld Devices Explosion of New Learning Content & Apps Growth of App Stores ... Mifflin Harcourt, IBM, Kaplan, Microsoft, Proctor & Gamble, RIM, and SkillSoft Ambient Insight… Does not evaluate, compare, or rank the effectiveness of learning technology products Does ... Definition of Mobile Learning and Overview of the US Mobile Learning Market Testing in a Mobile World Academic and Corporate Device-embedded Testing Academic and Consumer Exam Preparation Professional
Ngày tải lên: 31/12/2013, 15:42
Tài liệu THE FUTURE OF THE WILD Radical Conservation for a Crowded World ppt
... period of time the amount of each type of habitat would remain more or less the same Parks and reserves... the arid lands west of the 100th meridian, then best to leave control of ... agencies of the federal government the Bureau of Land Management, the Fish and Wildlife Service, the Forest Service, and the National Park Service—created a committee of scientists ... to the despairing minimalism of the past thirty-five years of conservation We should no longer debate the changes we can make at the margins of human behavior so we can... of
Ngày tải lên: 17/02/2014, 17:20
Tài liệu Turning the Page The Future of eBooks ppt
... sources. 2 The Digital Book: Market of the Future? The discussion concerning the viability and chances of success of eBooks is not new. In recent decades, there have been talks as to when and whether ... changes of selected eReaders [...]... solution, as further tablets will be launched on the market in the course of the next few months Turning the Page: The Future of eBooks ... boost the market even further: The results of the consumer... is what the survey revealed: 9 12 Opportunities outweigh risks The breakthrough will be achieved in the course of the
Ngày tải lên: 22/02/2014, 09:20
Unfolding the Future of the Long War - Motivations, Prospects, and Implications for the U.S. Army docx
... Unfolding the Future of the Long War the changing demographic realities of Lebanon, and they have helped support the rise of Hezbollah as a force in national politics Additionally, the sectarian ... Incidents, April 7, 2006b The Nature of the Long War Seminar (NLWS) panel, “Session Outbrief = Frame the Problem: What Is the Long War?” December 8, 2006 192 Unfolding the Future of the Long War Nesser, ... percentage of these guest workers come to embrace radical Wahhabism while employed in Saudi Arabia or the Gulf states and, when they return to their home countries, they either attempt to spread the
Ngày tải lên: 06/03/2014, 20:20
Officer Classification and the Future of Diversity Among Senior Military Leaders doc
... sponsored by the OSD, the Joint Staff, the Unified Combatant Commands, the Department of the Navy, the Marine Corps, the defense agencies, and the defense Intelligence Community. The RAND Corporation ... on a synthesis of the social science literature, Figure 2.1 provides a conceptual view of the factors affecting the distribution... than that of the officer ranks During the Vietnam ... reflect these gains As an illustration, Figure 1.1 shows a recent picture of how the racial and ethnic distribution of officers 1 2 Officer Classification and the Future of
Ngày tải lên: 06/03/2014, 21:20
The future of public audit Edited by Clive Grace pdf
... services, and to shake them out of complacency and ineffi ciency. The late 1990s and early noughties then witnessed the emergence of two major themes. One of these was the creation of separate audit ... the Audit Commission in Wales and also at the same time the deputy-auditor general for Wales, with the job of leading the creation of the Wales Audit Offi ce from the ‘Welsh’ parts of both the ... independence of local government, but overall resolved the issue of the accountability of public audit itself fi rmly in the direction of the legislature rather than the executive arm of gov- ernment.
Ngày tải lên: 06/03/2014, 23:20
The Peloponnesian War and the Future of Reference, Cataloging, and Scholarship in Research Libraries potx
... spear”), the trunk (“a hose”) and the ear (“a fan”). Each of them discovered something immediately, but none perceived either the existence or the extent of the other important parts–or how they fit ... Assessments in the Athenian Empire (1919) Studies in the Athenian Tribute Lists (1926) Treasurers of Athena (1932) Athenian Financial Documents of the Fifth Century (1932) Athenian Assessment of 425 ... overview of all relevant sources as they can achieve They want to see the shape of the elephant” of their topic the full extent of its different important parts and how the parts
Ngày tải lên: 07/03/2014, 23:20
The future of English
... the future development of English in the world is the ‘outer circle’ of those who speak it as a second language. English often plays a special role in their lives and the fate of English in the ... a professional interest in the development of English worldwide. The Future of English? takes stock of the present, apparently unassailable, position of English in the world and asks whether ... a new era, but have fallen off the edge of an old one. But there are reasons why we ought to take stock and reassess the place of English in the world. The future of the English language may not...
Ngày tải lên: 05/11/2012, 16:27
The future of English 2
... the future development of English in the world is the ‘outer circle’ of those who speak it as a second language. English often plays a special role in their lives and the fate of English in the ... in the centre of the main trend; he feels the strength of being exactly in tune Youth culture 48 The Future of English? The ‘baby boom’ in the west gave rise to a demographic hump which had profound ... such as the Internet, are changing the way the world’s citizens communicate and the way organisations operate. But the demography of the Internet is changing rapidly and the experience of the last...
Ngày tải lên: 05/11/2012, 16:27
The future of English - David Graddol
... in the centre of the main trend; he feels the strength of being exactly in tune Youth culture 48 The Future of English? The ‘baby boom’ in the west gave rise to a demographic hump which had profound ... domains of English Will the growth of the Internet help maintain the global influence of English? p. 50 What effect will changing patterns of trade have on the use of English? p. 33 The global ... prepare for the significant changes the 21st century will bring. The Future of English? 3 The future of English will be more complex, more demanding of understanding and more challenging for the position...
Ngày tải lên: 18/10/2013, 12:15