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Regeneration of tropical montane cloud forests increases water yield in the Brazilian Atlantic Forest
Ecohydrology ( IF 2.6 ) Pub Date : 2021-04-16 , DOI: 10.1002/eco.2298
Gabriela Miranda Teixeira 1 , Pablo Hugo Alves Figueiredo 2 , Luiz Felippe Salemi 3 , Silvio Frosini Barros Ferraz 4 , Mauricio Ranzini 5 , Francisco Carlos Soriano Arcova 5 , Valdir Cicco 5 , Nivaldo Eduardo Rizzi 1
Affiliation  

Tropical montane cloud forests (TMCF) have paramount importance with regards to hydrological and ecological functions. Despite such importance in terms of water provision, they are one of the most endangered ecosystems on the planet. One important topic that is still unclear is related to TMCF regeneration: can it recover the hydrological function of such critical ecosystems? In the present paper, the hydrological effects of the natural regeneration of TMCF were examined. We selected three catchments with different degrees of TMCF, and we examined the relationship between the amount of TMCF over time and hydrological variables such as water yields and baseflow using a time series (1984–2011). Our results suggest that the increase in TMCF cover can contribute to increases in water yield. This pattern was found in a catchment with an increase of approximately 20% of forest cover. In catchments with TMCF increase lower than this threshold, water yield and flow path were influenced by hydroclimatic variables such as air temperature and rainfall. The effect of the reduction in water yield, in accordance with the increase in mean temperature, sheds light on possible consequences of climate change on ecosystem services produced in foggy environments. In light of these findings, aiming to increase the water yield, we recommend that regions frequently affected by fog are prioritized for forest restoration or conservation. To ensure significant effects, regeneration and/or successional development of TMCF has to reach at least 20% of a catchment area.

中文翻译:

热带山地云林的再生增加了巴西大西洋森林的水产量

热带山地云雾林 (TMCF) 在水文和生态功能方面具有极其重要的意义。尽管在供水方面如此重要,但它们是地球上最濒危的生态系统之一。一个仍不清楚的重要话题与 TMCF 再生有关:它能否恢复如此关键生态系统的水文功能?在本文中,研究了 TMCF 自然再生的水文效应。我们选择了三个具有不同 TMCF 程度的流域,并使用时间序列(1984-2011 年)检查了 TMCF 量随时间的变化与水文变量(如产水量和基流)之间的关系。我们的结果表明,TMCF 覆盖率的增加有助于增加产水量。在森林覆盖率增加约 20% 的集水区发现了这种模式。在 TMCF 增加低于此阈值的流域中,产水量和流动路径受气温和降雨等水文气候变量的影响。随着平均温度的升高,产水量减少的影响揭示了气候变化对雾环境中产生的生态系统服务可能产生的影响。鉴于这些发现,为了增加水的产量,我们建议优先考虑经常受雾影响的地区进行森林恢复或保护。为确保显着效果,TMCF 的更新和/或演替开发必须达到至少 20% 的集水区。产水量和流动路径受气温和降雨等水文气候变量的影响。随着平均温度的升高,产水量减少的影响揭示了气候变化对雾环境中产生的生态系统服务可能产生的影响。鉴于这些发现,为了增加水的产量,我们建议优先考虑经常受雾影响的地区进行森林恢复或保护。为确保显着效果,TMCF 的更新和/或演替开发必须达到至少 20% 的集水区。产水量和流动路径受气温和降雨等水文气候变量的影响。随着平均温度的升高,产水量减少的影响揭示了气候变化对雾环境中产生的生态系统服务可能产生的影响。鉴于这些发现,为了增加水的产量,我们建议优先考虑经常受雾影响的地区进行森林恢复或保护。为确保显着效果,TMCF 的更新和/或演替发展必须达到至少 20% 的集水区。阐明了气候变化对有雾环境中产生的生态系统服务可能产生的影响。鉴于这些发现,为了增加水的产量,我们建议优先考虑经常受雾影响的地区进行森林恢复或保护。为确保显着效果,TMCF 的更新和/或演替发展必须达到至少 20% 的集水区。阐明了气候变化对有雾环境中产生的生态系统服务可能产生的影响。鉴于这些发现,为了增加水的产量,我们建议优先考虑经常受雾影响的地区进行森林恢复或保护。为确保显着效果,TMCF 的更新和/或演替开发必须达到至少 20% 的集水区。
更新日期:2021-04-16
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