Graef F, Schmidt G, Schröder W, Stachow U
Leibniz Centre for Agricultural Landscape- and Land Use Research, Eberswalder Str. 84, Müncheberg, Germany.
Environ Monit Assess. 2005 Sep;108(1-3):189-203. doi: 10.1007/s10661-005-3966-5.
A representative environmental monitoring network at the regional scale cannot use raster-based or random sampling designs, but requires a stratified sampling procedure integrating different information layers, and it has to occur in ecologically differing homogeneous regions (ecoregions). These we have determined using a set of spatial strata with ecological variables which we analysed with classification and regression trees (CART). We present a framework for environmental monitoring, that covers different scales, and we transfer the framework to a potential GMO (genetically modified organisms) monitoring network. We use ecoregion and other environmental strata together with existing environmental monitoring networks to determine GMO monitoring sites more precisely.
区域尺度上具有代表性的环境监测网络不能采用基于栅格或随机抽样设计，而是需要一种整合不同信息层的分层抽样程序，并且该程序必须在生态特征不同的均质区域（生态区）中进行。我们使用一组带有生态变量的空间分层来确定这些区域，并用分类与回归树（CART）进行分析。我们提出了一个涵盖不同尺度的环境监测框架，并将该框架应用于一个潜在的转基因生物监测网络。我们将生态区和其他环境分层与现有的环境监测网络结合起来，以更精确地确定转基因生物监测点。
