首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2篇
  完全免费   1篇
  评价与监测   3篇
  2014年   1篇
  1998年   2篇
排序方式: 共有3条查询结果,搜索用时 33 毫秒
1
1.
The use of environmental isotopes as tracers in the hydrosphere is increasing as analytical instrumentation improves and more applications are discovered. There exists still misconceptions on the role of isotopes in resolving hydrology problems. Naturally occurring isotopes in the environment describe hydrological processes, estimate ages, fingerprint sources and pathways, yet are not subject to the regulatory restraints of artificial isotope injections nor the limited extent of many chemical tracers, particularly dyes and particulates. A short review is presented for practicing hydrologists on the basis for employing stable and radioactive isotopes and a synopsis of recent isotope hydrology applications is provided. Special focus is presented on the emergent role of water isopopes (18O, 2H, 3H) in wet-weather flow research in urban watersheds. A brief technical approach for an experimental site in the Mill Creek Watershed, Ohio is outlined.  相似文献
2.
The use of environmental isotopes as tracers in the hydrosphere is increasing as analytical instrumentation improves and more applications are discovered. There exists still misconceptions on the role of isotopes in resolving hydrology problems. Naturally occurring isotopes in the environment describe hydrological processes, estimate ages, fingerprint sources and pathways, yet are not subject to the regulatory restraints of artificial isotope injections nor the limited extent of many chemical tracers, particularly dyes and particulates. A short review is presented for practicing hydrologists on the basis for employing stable and radioactive isotopes and a synopsis of recent isotope hydrology applications is provided. Special focus is presented on the emergent role of water isopopes (18O, 2H, 3H) in wet-weather flow research in urban watersheds. A brief technical approach for an experimental site in the Mill Creek Watershed, Ohio is outlined.  相似文献
3.
目前国内对棕地环境的监管尚处于起步阶段,存在棕地再利用的诸多问题,加剧了可利用土地紧缺与城市化进程中土地需求扩大之间的矛盾。通过调查,选取苏州市典型棕地的污染和监管过程进行分析,归纳总结了地市级棕地环境监管的漏洞和不足,分别从完善法规制度、健全监管体系、提升监测能力等方面,提出强化棕地环境监管的建议。  相似文献
1
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号