随着经济的发展和开发建设,海南有限的耕地资源在不断减少。海南省耕地储备资源数据库的建立,能妥善解决重点项目建设占用耕地历史的遗留问题,确保海南省实现耕地总量动态平衡和耕地占补平衡,推动海南省耕地资源储备与土地开发整理产业化。本文主要介绍了采用B/S结构的海南省耕地资源储备数据库管理系统的设计与实现过程。该系统以Asp.net和SQL Server 2000数据库技术为开发工具,实现了海南省耕地资源储备管理的系统化、网络化、规范化和自动化。 相似文献
A database which holds results of field and laboratory experiments on the impact of subsoil compaction on physical and mechanical soil parameters and on crop yields and environmental impact is being developed within the EU sponsored concerted action (CA) project “Experiences with the impact of subsoil compaction on soil, crop growth and environment and ways to prevent subsoil compaction”. The database accumulates and can provide all available data from the participants of the European Union countries, and is compatible with the European Soil Database and other related databases.
More than 600 sets of data (Excel workbooks) from participants from the European Union, plus Poland, Switzerland and Norway are included in the database. Through a similar EU sponsored CA, Eastern European countries are expected to deliver 260 sets of data thus bringing the total number of Excel workbooks to approximately 860. In total, the database will contain approximately 13,500 data spreadsheets.
The objective of the database is to collect data on subsoil compaction, to store it in a structured format and to make it available for analysis and use. Thereby it will enable elucidation of the impact of subsoil compaction on soil properties, crop yields and environment and evaluate the vulnerability of soils to compaction. 相似文献