...
首页> 外文期刊>Conservation Letters >A Loss‐Gain Calculator for Biodiversity Offsets and the Circumstances in Which No Net Loss Is Feasible
【24h】

A Loss‐Gain Calculator for Biodiversity Offsets and the Circumstances in Which No Net Loss Is Feasible

机译:用于生物多样性补偿的损失收益计算器,以及没有净损失是可行的情况

获取原文
           

摘要

Abstract Offsetting is a policy instrument intended to provide flexibility for development. We developed a simple calculator to predict when no net loss is feasible using biodiversity offsetting. Assuming offset ratios ≤10:1 are indicative of operational feasibility and employing a discount rate of 3%, we predicted that no net loss is feasible where biodiversity can be restored within 55 years, which restricts the impacts on biodiversity that can be offset using restoration. Alternatively, no net loss is feasible by avoiding loss to biodiversity that is declining under the counterfactual at an annual rate ≥6%. However, this is considerably higher than typical background rates of biodiversity loss so restricts where avoided-loss offsets are feasible. No net loss is theoretically feasible in the broadest range of circumstances if biodiversity gains are provided in advance of development. However, these gains are procured by restoration or avoided loss, so constraints presented by these approaches also apply. We concluded that no net loss is feasible in a limited range of development scenarios unless offset ratios greater than 10:1 are more widely tolerated.
机译:摘要抵销是旨在为发展提供灵活性的政策工具。我们开发了一个简单的计算器来预测何时使用生物多样性补偿没有净损失是可行的。假设补偿率≤10:1表示可操作,并采用3%的折现率,我们预测在55年内无法恢复生物多样性的情况下没有净损失是可行的,这限制了可以通过恢复来抵消对生物多样性的影响。或者,通过避免因反事实而以每年≥6%的速度下降的生物多样性丧失,没有净损失是可行的。但是,这大大高于典型的生物多样性丧失本底率,因此限制了可以避免损失弥补的地方。如果在发展之前提供生物多样性收益,那么在最广泛的情况下,没有净损失在理论上是可行的。但是,这些收益是通过恢复或避免损失获得的,因此,这些方法提出的约束条件也适用。我们得出的结论是,除非在更大范围内容许抵消比率大于10:1,否则在有限的开发方案范围内没有净损失是可行的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号