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Artificial drainage is essential to sustain irrigated agriculture, in order to control the water table and avoid waterlogging and salinisation. Biodrainage systems rely on vegetation rather than mechanical means to remove excess water, and can provide a cost-effective and environmentally friendly drainage option. This publication presents a range of formally published and unpublished literature on the current level of knowledge of biodrainage, in order to inform further research and promote pilot testing schemes.
Soil organic matter (SOM) is the primary determinant of soil functionality. Soil organic carbon (SOC) accounts for 50% of the SOM content, accompanied by nitrogen, phosphorus, and a range of macro and micro elements. As a dynamic component, SOM is a source of numerous ecosystem services critical to human well-being and nature conservancy. Important among these goods and services generated by SOM include moderation of climate as a source or sink of atmospheric CO2 and other greenhouse gases, storage and purification of water, a source of energy and habitat for biota (macro, meso, and micro-organisms), a medium for plant growth, cycling of elements (N, P, S, etc.), and generation of net primar...
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This index has been compiled as a quick reference guide to biographies of 9,052 professional and amateur artists active in Canada from the seventeenth century to the present. The artists represent 42 professional categories, from animation to topography. In addition to 8,261 Canadian artists, the Index has 391 British, 300 American, and 100 European artists, all of whom spent part of their careers in Canada. Each entry provides the artist's name, date and place of birth and death (or years the artist flourished, if birth and death dates are not available), the nationality (if not Canadian), type of artist (major medium media used), and sources in which biographical information may be found. Several hundred cross-references link the various names used by some artists during the course of their careers.
The term "soil health" refers to the functionality of a soil as a living ecosystem capable of sustaining plants, animals, and humans while also improving the environment. In addition to soil health, the environment also comprises the quality of air, water, vegetation, and biota. The health of soil, plants, animals, people, and the environment is an indivisible continuum. One of the notable ramifications of the Anthropocene is the growing risks of decline in soil health by anthropogenic activities. Important among these activities are deforestation, biomass burning, excessive soil tillage, indiscriminate use of agrochemicals, excessive irrigation by flooding or inundation, and extractive farm...
The Southern Plains, 1873: The bison-rich grass lands of the Texas Panhandle prove the ultimate test of Plains protagonists Logan Fletcher, a young skinner from Kentucky, and Cuts Something, an aging Comanche war chief seeking to revive his badger medicine. Their confrontation, fuelded by equally arrogant, expansionist cultures, draws in an assortment of characters cast of the harsh land itself and just as gripping.
Nearly two billion people depend on hundreds of millions of smallholder farmers for food security. Yet, these farmers' lives also hang in the balance due to their extreme vulnerability to the risks of soil degradation and depletion, soil exhaustion, climate change, and numerous biotic and abiotic stresses. Soil Management of Smallholder Agriculture