soil-conservation practices
51Sri Lanka — Sri Lankan, adj., n. /sree lahng keuh, lang keuh, shree / an island republic in the Indian Ocean, S of India: a member of the Commonwealth of Nations. 18,762,075; 25,332 sq. mi. (65,610 sq. km). Cap.: Colombo. Formerly, Ceylon. Arabic, Serendip.… …
52Southern Africa — Introduction southernmost region of the African continent, comprising the countries of Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe. The island nation of Madagascar is excluded… …
53agricultural sciences, the — Introduction sciences dealing with food and fibre production and processing. They include the technologies of soil cultivation, crop cultivation and harvesting, animal production, and the processing of plant and animal products for human… …
54Constructed wetland — Vertical Flow type of Constructed Wetlands A constructed wetland or wetpark is an artificial wetland, marsh or swamp created as a new or restored habitat for native and migratory wildlife, for anthropogenic discharge such as wastewater,… …
55Land degradation — Serious land degradation in Nauru after the depletion of the phosphate cover through mining Land degradation is a process in which the value of the biophysical environment is affected by one or more combination of human induced processes acting… …
56Tropical agriculture — Worldwide more human beings gain their livelihood from agriculture than any other endeavor; the majority are self employed subsistence farmers living in the tropics. While growing food for local consumption is the core of tropical agriculture,… …
57Water Resources Development Act of 1986 — The Water Resources Development Act of 1986 (WRDA 1986) is part of USPL|99|662, a series of acts enacted by Congress of the United States on November 17, 1986. [ [http://thomas.loc.gov/cgi bin/bdquery/D?d099:1:./temp/ bdVNjS:@@@D summ2=m… …
58Indigenous and Community Conserved Area — Indigenous and Community Conserved Areas (ICCA) are areas in which there are close associations between indigenous people or a local community and a specific territory or body of natural resources. When such an association is combined with… …
59vegetable farming — Introduction growing of vegetable crops, primarily for use as human food. The term vegetable in its broadest sense refers to any kind of plant life or plant product; in the narrower sense, as used in this article, however, it refers… …
60UNITED STATES OF AMERICA — UNITED STATES OF AMERICA, country in N. America. This article is arranged according to the following outline: introduction Colonial Era, 1654–1776 Early National Period, 1776–1820 German Jewish Period, 1820–1880 East European Jewish Period,… …
