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Community Organizations John Wiley & Sons, Inc.
John Wiley & Sons, Inc.
John Wiley & Sons, Inc.
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Wiley
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Wiley's Global Research business is a provider of content-enabled solutions to improve outcomes in research, education and professional practice with online tools, journals, books, databases, reference works and laboratory protocols. With strengths in every major academic, scientific and professional field, and strong brands including Wiley Blackwell and Wiley VCH, Wiley proudly partners with over 800 prestigious societies representing two million members. Through Wiley Online Library, we provide online access to a broad range of content: over 4 million articles from 1,500 journals, 9,000+ books, and many reference works and databases. Access to abstracts and searching is free, full content is accessible through licensing agreements, and large portions of the content are provided free or at nominal cost to nations in the developing world through partnerships with organizations such as HINARI, AGORA, and OARE.


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Wiley Global Education serves undergraduate, graduate, and advanced placement students, lifelong learners, and, in Australia, secondary school students. We publish educational materials in all media, notably through WileyPLUS, our integrated online suite of teaching and learning resources. Our programs target the sciences, engineering, computer science, mathematics, business and accounting, statistics, geography, hospitality and the culinary arts, education, psychology, and modern languages.

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Displaying 106 - 110 of 164

Soil seed bank characteristics beneath an age sequence of caragana microphylla shrubs in the horqin sandy land region of northeastern china

Journal Articles & Books
Décembre, 2014
Chine

To understand how shrub cover affects the spatiotemporal patterns of the soil seed bank and to assess the role of vegetation in the restoration of desertified land in a semi‐arid region of China, we investigated the species composition and seed density of the soil seed bank under and outside the canopies over two seasons for an age sequence of Caragana microphylla shrubs in the Horqin Sandy Land region, Inner Mongolia. The results showed that a total of 24 plant species seeds were present in the soil seed bank, of which 20 were annuals or biennials.

Simulated watershed responses to land cover changes using the Regional Hydro‐Ecological Simulation System

Journal Articles & Books
Décembre, 2014

In this work, we used the Regional Hydro‐Ecological Simulation System (RHESSys) model to examine runoff sensitivity to land cover changes in a mountain environment. Two independent experiments were evaluated where we conducted simulations with multiple vegetation cover changes that include conversion to grass, no vegetation cover and deciduous/coniferous cover scenarios. The model experiments were performed at two hillslopes within the Weber River near Oakley, Utah watershed (USGS gauge # 10128500).

EFFECTS OF GRAZING INTENSITY AND BUSH ENCROACHMENT ON HERBACEOUS SPECIES AND RANGELAND CONDITION IN SOUTHERN ETHIOPIA

Journal Articles & Books
Décembre, 2014
Éthiopie

Grazing intensity and bush encroachment are disturbance factors that may alter the floristic composition of herbaceous species. This paper investigates impacts of grazing (intensity) and bush encroachment on herbaceous species and rangeland conditions in Borana, southern Ethiopia. Herbaceous species richness and the abundance of each species were greater in the light‐ and moderate‐grazed areas than heavy‐grazed sampling plots. Similarly, herbaceous species richness was highest at an intermediate level of biomass and seems to decline as biomass increases.

LAND RESOURCES OF THE MEDITERRANEAN: STATUS, PRESSURES, TRENDS AND IMPACTS ON FUTURE REGIONAL DEVELOPMENT

Journal Articles & Books
Décembre, 2014
Algérie
Libye
Égypte
Asie occidentale
Afrique septentrionale

The Mediterranean region covers about 854 million ha, but only 118 million (or 14 per cent) are suitable for agricultural production. In North Africa and the Middle East (MENA), agricultural land covers about 5 per cent; in Egypt and Algeria, it occupies less than 4 per cent and, in Libya, less than 2 per cent of the total national land area. Across the Mediterranean region land use divides between natural pastures/rangelands (ca. 15 per cent), forests and woodlands (ca. 8 per cent), with the ca.

FUZZY RULE BASE APPROACH FOR DEVELOPING A SOIL PROTECTION INDEX MAP: A CASE STUDY in the UPPER AWASH BASIN, ETHIOPIAN HIGHLANDS

Journal Articles & Books
Décembre, 2014
Éthiopie
Italie

Land use practices and vegetation cover distribution are considered to be the most important dynamic factors that influence the land degradation or the soil erosion of a region. In this study, a Soil Protection Index (SPI) is defined as a function of land use practices and intensity of vegetation cover. This index is used to map the relative degree of protection of topsoil from being eroded by external effects such as rainfall and overland flow. A fuzzy rule‐based model integrated within ArcGIS® has been set‐up and tested with the aim to develop SPI maps.