BEAVER ALLEGHENY WASHINGTON GREENE WESTMORELAND FAYETTE ARMSTRONG INDIANA CAMBRIA JEFFERSON CLARION except at the Clinton and Fulton County sites, which were abandoned because of nonuniform stands. Soil pressure was somewhat higher than in the past, particularly at the Hershey location in Dauphin County

The availability of global positioning systems (GPS) has made it possible to abandon traditional ways of managing sugarcane fields as whole units in favor of approaches that address within-field variability. A series of experiments was initiated to determine if soil electrical conductivity (EC) map...

We used quantitatively excavated soil pits to sample chronosequences of post-agricultural northern hardwood forest soils in the Hopkins Memorial Forest, Williamstown, MA, to determine how much carbon was lost during the period of agricultural use, and the rates at which C accumulated after ...

Soil radiocarbon measurements show that mineral soil carbon under a recovering temperate forest in South Carolina turns over twice as fast as carbon in undisturbed soil. The observed 12-year turnover time influences the design and interpretation of CO{sub 2} fertilization experiments. Experiments conducted on formerly disturbed sites ...

The present study was aimed at comparing the number of arbuscular mycorrhizal fungi (AMF) propagules found in soil from a mature tropical forest and that found in an abandoned cornfield in Noh-Bec Quintana Roo, Mexico, during three seasons. Agricultural practices can dramatically reduce the availability and viability of AMF propagules, ...

The authors used two independent methods to determine the dynamics of soil carbon and nitrogen following abandonment of agricultural fields on a Minnesota sand plain. First, they used a chronosequence of 19 fields abandoned from 1927 to 1982 to infer soil carbon and nitrogen dynamics. Second, ...

The assessment of the changes in the organic carbon pool in the soils of the Russian Federation that occurred in 1990-2004 was carried out using approximation, soil-geoinformation, and simulation approaches. As a result of the changes in the system of land use, after 1990, the organic carbon storages in the 0- to 20-cm-thick soil layer ...

Jun 16, 2011 ... In the lower Mississippi alluvial valley, reforestation projects are occurringon a large scale on abandoned agricultural fields, often in ...

Response of different plant species to heavy metals in soils from an abandoned mining area in Murcia Region (Spain)

...Department of Agriculture (Continued) FARM SERVICE AGENCY, DEPARTMENT OF AGRICULTURE SPECIAL PROGRAMS INVENTORY PROPERTY MANAGEMENT Property Abandonment and Personal Property Removal § 767.51 Property abandonment. The Agency...

A quantitative assessment of the carbon balance was performed in gray forest soils of the former agricultural lands abandoned in different time periods in the southern part of Moscow oblast. It was based on the field measurements of the total and heterotrophic soil respiration and the productivity of biocenoses. ...

The area occupied by acid sulfate soils in the Caribbean and South American coast is not accurately known, but is likely to exceed 1.5 million ha. Major occurrences are known from Suriname, Guyana, the Orinoco Delta in Venezuela, and in Trinidad, with smaller occurrences in the other Caribbean Islands and on the coast of Central America. At present there is little pressure to ...

Urban ecosystems represent a small fraction of the terrestrial landscape, but they are among the most heavily managed and disturbed ecosystems of the world. Land use change, for example the conversion of native landscapes to agriculture, often results in net loss of soil organic matter and soil carbon pools, whereas ...

The end of the Soviet Union and the collapse of its agricultural structures in the early 1990s has induced the abandonment of a large croplands area, which have been recovered by herbaceous plants. This widespread unintended and abrupt land use change took place over 200,000 km2, a large enough scale to impact the continental and global carbon budgets. The ...

Paper outlines nitrate leaching results of loblolly pine and sweet gum that were grown with irrigation, continuous fertilization and insect pest control on a year old abandoned peanut field. Wells and tension lysimeters were used to measure nitrate in soil moisture and groundwater on three replicate transects for two years. Groundwater nitrate ...

Dec 13, 2010 ... soil & agriculture ... Soil and the env. Soil & the Environment blank. Working with soil blank. Soil & Students blank. Soil & Agriculture ...