Download or read book Memoria del IV simposio nacional de parasitologia agricola written by ITRV and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoria del XI Simposio Nacional de Parasitolog a Agr cola written by Ingenieros Agrónomos Parasitólogos (México) and published by . This book was released on 1985 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pines of Silvicultural Importance written by and published by CABI. This book was released on 2002 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pines are the most economically important group of trees in the world, covering large parts of the Northern Hemisphere and also being of silvicultural significance in many countries in the Southern Hemisphere. This book is compiled from 65 datasheets on pine from the Forestry Compendium Global Module (published by CABI on CD-ROM). For each species, there is information on common names, taxonomy, botanical features, natural distribution, latitude range, climate, soil properties, silvicultural characteristics, pests, wood and non-wood products.
Download or read book General Technical Report RM written by and published by . This book was released on 1993 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban Air Pollution and Forests written by Mark E. Fenn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present, roughly half of the world's population lives in urban centers. There are now more than 20 cities with a population of over 10 million inhabitants, compared to less than 5 about 50 years ago. This tendency toward urbanization is expected to continue, particularly in the developing world. A consequence of this growing trend is that millions of people are being exposed to harmful levels of urban air pollutants caused mainly by emissions from motor vehicles and from industrial and domestic activities involving the combustion of fossil fuels. The driving force for the design and implementation of emission control strate gies aimed at improving air quality has been the protection of the health of the population in urban centers. There are, however, other consequences of the pres ence of air pollutants besides the direct effect on human health. Reduced visibil ity, damage to monuments and buildings, and many other such consequences indirectly affect our quality of life. Another set of consequences involves damage to ecological systems. In fact, the nature of "photochemical smog" was first uncovered in the 1950s in connection with observations of its harmful effects on crops and plants in the vicinity of Los Angeles.
Download or read book Haciendo Operacional a la Sostenibilidad written by and published by . This book was released on 1993 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pest Risk Assessment of the Importation Into the United States of Unprocessed Pinus and Abies Logs from Mexico written by and published by . This book was released on 1998 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migratory Fishes of South America written by Joachim Carolsfeld and published by IDRC. This book was released on 2003 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bean Production Problems in the Tropics written by Howard F. Schwartz and published by CIAT. This book was released on 1989 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first section reviews trends of bean production and constraints in Latin America and Africa. The second section covers fungal diseases. The third section, bacterial diseases. The fourth section, viral and mycoplasma diseases. The fifth section, insect pests. The last section, other bean production constraints, that is, nutritional disorders, nematodes, seed pathology, and additional problems.
Download or read book Bean Production Problems written by Centro Internacional de Agricultura Tropical and published by Agribookstore/Winrock. This book was released on 1980 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Enfermedades forestales en M xico written by David Cibrián-Tovar and published by . This book was released on 2007 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agentes abióticos; Agentes bióticos; Enfermedades del follaje; Cancros; Royas; Enfermedades de la raíz; Pudrición en árboles vivos; Marchitamientos vasculares; Bacterias, fitoplasmas y virus; Nematodos; Plantas parásitas; Deterioro de la madera; Enfermedades en vivieros forestales.
Download or read book General Technical Report FPL written by and published by . This book was released on 1978 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RMRS written by and published by . This book was released on 2002 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to the Aquatic Insects of North America written by Richard W. Merritt and published by Kendall Hunt. This book was released on 1996 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mistletoes of North American Conifers written by Brian W. Geils and published by . This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Children Spaces and Identity written by Margarita Sánchez Romero and published by Oxbow Books. This book was released on 2015-10-31 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do children construct, negotiate and organize space? The study of social space in any human group is fraught with limitations, and to these we must add the further limits involved in the study of childhood. Here specialists from archaeology, history, literature, architecture, didactics, museology and anthropology build a body of theoretical and methodological approaches about how space is articulated and organized around children and how this disposition affects the creation and maintenance of social identities. Children are considered as the main actors in historic dynamics of social change, from prehistory to the present day. Notions on space, childhood and the construction of both the individual and the group identity of children are considered as a prelude to papers that focus on analyzing and identifying the spaces which contribute to the construction of children’s identity during their lives: the places they live, learn, socialize and play. A final section deals with these same aspects, but focuses on funerary contexts, in which children may lose their capacity to influence events, as it is adults who establish burial strategies and practices. In each case authors ask questions such as: how do adults construct spaces for children? How do children manage their own spaces? How do people (adults and children) build (invisible and/or physical) boundaries and spaces?
Download or read book Invasive Plants on the Move written by Etats-Unis. Federal highway administration and published by . This book was released on 2009 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
