Biological diversity is an abstract, scientific concept and both evaluating its condition and, to great extent, justifying its conservation requires expert knowledge. Accordingly, regulating and managing biological diversity presupposes standardisation and methods for managing uncertainty. To be acted on, the concept must be promoted, passing, in this process, through various institutions, such as intergovernmental organisations and national administrations. This paper examines how the principle of biological diversity conservation is defined, focusing on the values of biological diversity and how this notion has ‘travelled the world’. The paper includes a study of how the principle of biological diversity was applied in a specific case of insect control in Sweden. 相似文献
为探究广西土地利用变化对生态系统服务价值(ecosystem service value,ESV)的影响,采用随机森林算法对2000—2020年5期Landsat系列遥感影像进行土地利用分类,运用土地利用动态度、土地利用转移矩阵方法揭示土地利用变化规律,运用当量因子法计算ESV,探究其时空变化特征,并分析各土地利用类型与ESV变化之间的内在联系。结果表明:林地和耕地是广西主体土地利用类型;建设用地面积逐年增加,主要是侵占耕地;单一土地利用类型动态度表现为未利用地>草地>建设用地>耕地>水域>林地。广西生态系统服务价值总体呈波动下降趋势;单向生态系统服务价值以水文调节和气候调节为主;在空间分布上,ESV呈中部低、四周高的特征;广西近20年的ESV变化,草地、林地和耕地是主要贡献因子和敏感因子。