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Scenario-based ecological security patterns to indicate landscape sustainability: a case study on the Qinghai-Tibet Plateau
Landscape Ecology ( IF 4.0 ) Pub Date : 2020-05-30 , DOI: 10.1007/s10980-020-01044-2
Feifei Fan , Yanxu Liu , Jixing Chen , Jianquan Dong

Context When setting the goal of landscape sustainability in landscape management, a key theoretical question should be which landscape patterns are more sustainable, whereas there were few studies that further compared optimization scenarios. Objectives This article sought to identify the future scenario of landscape services and the most sustainable landscape in the Qinghai-Tibet Plateau. Methods This study adopts the parameter of ecological security pattern (ESP) combining with landscape connectivity and landscape service as indicators to assess the sustainability of landscape patterns in 2010, 2020 and 2030 with different land use scenarios in Representative Concentration Pathways. Results The results showed that (1) the area with high quality of the three landscape services was mainly concentrated in the southeast of the Qinghai-Tibet Plateau, where a large area of forest was distributed, and the low quality area was located in the northwest, which was bare land in 2010; (2) the landscape services showed a declining trend under the RCP 2.6 and RCP 4.5 scenarios from 2020 to 2030, whereas the values remained stable under the RCP 6.0 and RCP 8.5 scenarios; and (3) there were 9 ecological sources and 16–17 corridors within the ESP scenarios with quantitative parameters to indicate the landscape sustainability of the scenarios. Conclusions The approach of this study showed the possibility of using ESP scenarios to quantitatively indicate the sustainability of landscape patterns and provide guidance for future landscape management.

中文翻译:

基于情景的生态安全模式指示景观可持续性:以青藏高原为例

背景在景观管理中设定景观可持续性目标时,一个关键的理论问题应该是哪种景观模式更可持续,而很少有研究进一步比较优化方案。目标本文试图确定青藏高原景观服务的未来情景和最可持续的景观。方法本研究采用生态安全格局(ESP)参数,结合景观连通性和景观服务作为指标,评估2010年、2020年和2030年不同土地利用情景下代表性集中路径下景观格局的可持续性。结果 结果表明:(1)三种景观服务质量较高的区域主要集中在青藏高原东南部,森林分布面积大,劣质区位于西北,2010年为裸地;(2) 景观服务在RCP 2.6和RCP 4.5情景下从2020年到2030年呈现下降趋势,而在RCP 6.0和RCP 8.5情景下的数值保持稳定;(3) ESP 情景中有 9 个生态源和 16-17 条廊道,带有量化参数来表示情景的景观可持续性。结论 本研究的方法显示了使用 ESP 场景定量指示景观格局的可持续性并为未来景观管理提供指导的可能性。(2) 景观服务在RCP 2.6和RCP 4.5情景下从2020年到2030年呈现下降趋势,而在RCP 6.0和RCP 8.5情景下的数值保持稳定;(3) ESP 情景中有 9 个生态源和 16-17 条廊道,带有量化参数来表示情景的景观可持续性。结论 本研究的方法显示了使用 ESP 场景定量指示景观格局的可持续性并为未来景观管理提供指导的可能性。(2) 景观服务在RCP 2.6和RCP 4.5情景下从2020年到2030年呈现下降趋势,而在RCP 6.0和RCP 8.5情景下的数值保持稳定;(3) ESP 情景中有 9 个生态源和 16-17 条廊道,带有量化参数来表示情景的景观可持续性。结论 本研究的方法显示了使用 ESP 场景定量指示景观格局的可持续性并为未来景观管理提供指导的可能性。(3) ESP 情景中有 9 个生态源和 16-17 条廊道,带有量化参数来表示情景的景观可持续性。结论 本研究的方法显示了使用 ESP 场景定量指示景观格局的可持续性并为未来景观管理提供指导的可能性。(3) ESP 情景中有 9 个生态源和 16-17 条廊道,带有量化参数来表示情景的景观可持续性。结论 本研究的方法显示了使用 ESP 场景定量指示景观格局的可持续性并为未来景观管理提供指导的可能性。
更新日期:2020-05-30
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