نتایج جستجو برای: water logging
تعداد نتایج: 557983 فیلتر نتایج به سال:
Abstract. The clearing of trees and native vegetation over the past 160 years has caused deep drainage to groundwater in the Broken Plains area. Predictions are that continuing recharge will bring the water-table to within 2 metres of the surface over the next 30 years. This will lead to water-logging and dryland salinity. A solution is to introduce deep-rooted perennial species such as lucerne...
چکیده ندارد.
BACKGROUND Questions regarding control over a water fluoridation system in a British Columbia (BC) community led to a drinking water management survey in 1997-98. METHOD A questionnaire was constructed based on published drinking water control and management criteria and was sent to 91 communities. RESULTS 73/91 surveys were returned (80% response rate); 31 reported a protected water supply...
Concern regarding extensive damage to tropical forests resulting from logging increased dramatically after World War II when mechanized logging systems developed in industrialized countries were deployed in the tropics. As a consequence, tropical foresters began developing logging procedures that were more environmentally benign, and by the 1990s, these practices began to be described as “reduc...
To illustrate the Reactor pattern, consider the event-driven server for a distributed logging service shown in Figure 1. Client applications use this service to log information (such as error notifications, debugging traces, and status updates) in a distributed environment. In this service, logging records are sent to a central logging server. The logging server outputs the logging records to a...
Our understanding of the long-lasting effects of human land use on soil fungal communities in tropical forests is limited. Yet, over 70% of all remaining tropical forests are growing in former agricultural or logged areas. We investigated the relationship among land use history, biotic and abiotic factors, and soil fungal community composition and diversity in a second-growth tropical forest in...
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