DOI: 10.1016/j.envsci.2020.01.006
论文题名: Assessing land-based mitigation implications for biodiversity
作者: Nunez S. ; Verboom J. ; Alkemade R.
刊名: Environmental Science and Policy
ISSN: 14629011
出版年: 2020
卷: 106 语种: 英语
英文关键词: Biodiversity change
; Carbon sequestration
; Climate change
; Land-based mitigation
Scopus关键词: afforestation
; agricultural land
; agroforestry
; Article
; biodiversity
; bioenergy
; carbon sequestration
; deforestation
; ecosystem restoration
; environmental protection
; land use
; priority journal
; reforestation
; wetland
英文摘要: The Paris Agreement to keep global temperature increase to well-below 2 °C and to pursue efforts to limit it to 1.5 °C requires to formulate ambitious climate-change mitigation scenarios to reduce CO2 emissions and to enhance carbon sequestration. These scenarios likely require significant land-use change. Failing to mitigate climate change will result in an unprecedented warming with significant biodiversity loss. The mitigation potential on land is high. However, how land-based mitigation options potentially affect biodiversity is poorly understood. Some land-based mitigation options could also counter the biodiversity loss. Here we reviewed the recently scientific literature to assess twenty land-based mitigation options that are implemented in different mitigation pathways to comply with the Paris Agreement for their biodiversity impacts by using the Mean Species Abundance (MSALU) indicator for land use. We showed the likely land-use transition and potential MSALU changes for each option, compared their carbon sequestration opportunities (tC per ha) and assessed the resulting biodiversity change in two case scenarios. Our results showed that most options benefit biodiversity. Reforestation of cultivated and managed areas together with restoration of wetlands deliver the largest MSALU increases, if land is allowed to reach a mature state over time. A quarter of the assessed options, including intensification of agricultural areas and bioenergy with carbon capture and storage, decreased MSALU. Options, such as afforestation and reduced deforestation, either positively or negatively affected MSALU. This depends on their local implementation and adopted forest-conservation schemes. Comparing the different options showed that avoiding deforestation by implementing agroforestry at the expense of pastures delivered both the largest MSALU increases and the highest carbon sequestration opportunities. However, agroforestry that leads to deforestation, enhanced carbon sequestration slightly but with a marginal MSALU increase. This stresses the importance of avoiding forest conversion. Our study advances the understanding on current and future benefits and adverse effects of land-based mitigation options on biodiversity. This certainly helps biodiversity conservation and determines the regions with large land-based mitigation potential. © 2020 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158511
Appears in Collections: 气候变化与战略
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作者单位: Environmental Systems Analysis Group, Wageningen University and Research, PO Box 47, Wageningen, 6700 AA, Netherlands; PBL-Netherlands Environmental Assessment Agency, PO Box 30314, The Hague, 2500 GH, Netherlands
Recommended Citation:
Nunez S.,Verboom J.,Alkemade R.. Assessing land-based mitigation implications for biodiversity[J]. Environmental Science and Policy,2020-01-01,106