Chesapeake Bay Maryland (CBM) NERR Nutrient Metadata February-December 2004 Latest Update: July 21, 2005

Nutrient monitoring is conducted at 26 National Estuarine Research Reserves (NERR) from four locations within or adjacent to the reserve on a monthly basis of the following parameters: orthophosphate, ammonium, nitrite, nitrate, and chlorophyll a. Note: Reserves may collect additional parameters which are available by searching the Yearly Files directory.

针对26个国家河口研究保护区（National Estuarine Research Reserves, NERR），在每个保护区内部或毗邻区域的4个监测点位，按月开展以下参数的营养盐监测：正磷酸盐、铵态氮、亚硝酸盐、硝酸盐及叶绿素a。注：各保护区可额外采集其他监测参数，相关数据可通过检索「年度文件目录」获取。