How effective is direct seeding to restore the functional composition of neotropical savannas?
How effective is direct seeding to restore the functional composition of neotropical savannas?
复制标题
直播对恢复新热带稀树草原功能组成的效果如何？
DOI：
10.1111/rec.13474
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发表时间：
2021
影响因子：
3.2
通讯作者：
Giles A
中科院分区：
文献类型：
--
作者：
Giles A
物种损失导致生态系统功能和服务的变化，影响人类福祉。虽然生物多样性恢复是避免这种情况的关键，但恢复原始稀树草原的技术仍然有限，恢复结果仍然不可预测。在这里，我们使用基于性状的方法来了解巴西稀树草原（塞拉多，以下简称新热带稀树草原）通过直播生态恢复的功能结果。我们比较了功能组成的木本和非木本成分，总生物量和生物量分配的恢复相对于退化的稀树草原（废弃的牧场）占主导地位的外来草和保存完好的古老的原生稀树草原。我们发现，恢复群落的功能组成与外来草占主导地位的群落非常相似，两者的特征都是具有收购性状的物种占主导地位，地上生物量较高，根系生物量投资较低。与此相反，本地植被表现出优势的保守性状和更高的投资在地下，而不是地上生物量。即使在恢复稀树草原的收购特性允许一个快速的地上生物量积累和土壤覆盖，在恢复稀树草原较低的地下生物量投资可能会限制其抵抗力和恢复能力干旱和火灾。我们的研究结果表明，在新热带稀树草原的恢复工作应侧重于促进建立缓慢生长的物种，以恢复新热带稀树草原的高生物多样性所提供的生态系统属性。
Species loss leads to changes in ecosystem function and services, impacting human well‐being. Although biodiversity restoration is pivotal to circumvent this situation, the techniques for restoring old‐growth savannas are still limited and the restoration outcomes remain unpredictable. Here, we use a trait‐based approach to understand the functional outcomes of ecological restoration via direct seeding in a Brazilian savanna (cerrado, hereafter neotropical savanna). We compared the functional composition from woody and non‐woody component, total biomass, and biomass allocation of a restored relative to a degraded savanna (abandoned pasture) dominated by exotic grasses and a well‐preserved old‐growth native savanna. We found that the functional composition of restored communities was very similar to those dominated by exotic grasses, both characterized by a greater dominance of species with acquisitive traits, higher above‐ground biomass, and lower investment in root biomass. In contrast, the native vegetation exhibited a dominance of conservative traits and higher investment in belowground rather than aboveground biomass. Even though the acquisitive traits in the restored savanna allow a fast aboveground biomass accumulation and soil cover, the lower belowground biomass investment in the restored savanna may limit its resistance and resilience to droughts and fires. Our findings suggest that restoration efforts in neotropical savanna should focus on fostering the establishment of slow‐growing species to recover the ecosystem properties provided by the high biodiversity in neotropical savannas.
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影响因子：
3.7
作者：
Michel T. Kohl;T. Messmer;B. Crabb;M. Guttery;D. Dahlgren;R. Larsen;Shandra N. Frey;Sherry Liguori;Rick J. Baxter
通讯作者：
Rick J. Baxter
巴西以社区为基础的本土种子生产恢复——科学和政策的作用。
影响因子：
3.9
作者：
I. Schmidt;D. I. de Urzedo;F. Piña;D. Vieira;G. M. de Rezende;A. Sampaio;R. G. Junqueira
通讯作者：
R. G. Junqueira
稀树草原土壤肥力限制了热带森林树苗的生长，但不限制其生存
影响因子：
4.9
作者：
R. Viani;R. Rodrigues;T. Dawson;R. Oliveira
通讯作者：
R. Oliveira
DOI：
10.1111/nph.14982
发表时间：
2018-03
期刊：
The New phytologist
影响因子：
--
作者：
J. Pausas;B. Lamont;S. Paula;B. Appezzato‐da‐Glória;A. Fidelis
通讯作者：
J. Pausas;B. Lamont;S. Paula;B. Appezzato‐da‐Glória;A. Fidelis
对“全球树木恢复潜力”的评论
影响因子：
56.9
作者：
J. Veldman;Julie C. Aleman;Swanni T. Alvarado;T. Michael Anderson;Sally Archibald;William J. Bond;T. Boutton;Nina Buchmann;É. Buisson;J. Canadell;Michele de Sá Dechoum;Milton H. Diaz;G. Durigan;J. Ewel;G. W. Fernandes;A. Fidelis;Forrest Fleischman;S. Good;Daniel M. Griffith;J. Hermann;William A. Hoffmann;Soizig Le Stradic;C. E. Lehmann;Grégory Mahy;Ashish N. Nerlekar;J. Nippert;Reed F. Noss;Colin Osborne;Gerhard E. Overbeck;Catherine L. Parr;J. Pausas;R. Toby Pennington;M. Perring;F. Putz;J. Ratnam;M. Sankaran;Isabel B. Schmidt;C. Schmitt;Fernando A. O. Silveira;A. C. Staver;N. Stevens;Christopher J. Still;Caroline A E Strömberg;V. Temperton;J. Varner;N. Zaloumis
通讯作者：
N. Zaloumis