In this study, the heat distribution throughout the profile of unsaturated multilayered soil is determined using finite difference method while its thermal diffusivity varies with time and depth. First, the input parameters such as water content, dry density and sand content of the soil profile...

Against the background of current public policy of urban-rural coordinated development, a key land policy issue is how to deal with the conflict between urban expansion and farmland protection. By analyzing three major types of externality in urban-rural land use and the current trial of...

This study collected 274 soil samples and 188 soil-crop paired samples in moderately Cd contaminated farmland dominated by vegetables in suburbs of Yangtze River Delta. In addition, this study conducted field trials of soil amendment and cultivar selection using Luhao as the target crop. The...

This article reports some results of a study to enhance the effectiveness of a prospective protocol on land-based marine pollution (LBMP) in the Wider Caribbean Region (WCR), which is under negotiation. We argue that the environmental, economic, and institutional diversity of the region as a...

Commercial whaling is highly contentious, angering animal rights groups and conservation organizations, who threaten boycotts. Proponents of whaling argue that many whale stocks are plentiful enough to support sustainable harvests. In terms of economic efficiency, a nation's decision to engage...

This article presents a US perspective on the influence of government policies on the nature and development of advanced marine electronic instrumentation (MEI) technologies in Europe. US firms traditionally have enjoyed a strong international competitive advantage in the MEI field, but European...