Dryland degradation is a persistent and accelerating global problem. Although the mechanisms initiating and maintaining dryland degradation are largely understood, returning productivity and function through ecological restoration remains difficult. Water limitation commonly drives slow recovery rates within drylands; however, the altered biogeochemical cycles that accompany degradation also play key roles in limiting restoration outcomes. Addressing biogeochemical changes and resource limitations may help improve restoration efforts within this difficult-to-restore biome. In the present article, we present a synthesis of restoration literature that identifies multiple ways biogeochemical understandings might augment dryland restoration outcomes, including timing restoration around resource cycling and uptake, connecting heterogeneous landscapes, manipulating resource pools, and using organismal functional traits to a restoration advantage. We conclude by suggesting ways to incorporate biogeochemistry into existing restoration frameworks and discuss research directions that may help improve restoration outcomes in the world's highly altered dryland landscapes.

中文翻译：

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将生物地球化学纳入旱地恢复

旱地退化是一个持续存在且正在加速的全球性问题。尽管引发和维持旱地退化的机制已基本了解，但通过生态恢复恢复生产力和功能仍然很困难。水资源限制通常会导致旱地恢复速度缓慢；然而，伴随退化而改变的生物地球化学循环也在限制恢复结果方面发挥着关键作用。解决生物地球化学变化和资源限制可能有助于改善这个难以恢复的生物群落的恢复工作。在本文中，我们介绍了恢复文献的综合，确定了生物地球化学理解可能增加旱地恢复结果的多种方式，包括围绕资源循环和吸收的时间恢复，连接异质景观，操纵资源池，并利用有机体功能特征来获得恢复优势。最后，我们提出了将生物地球化学纳入现有恢复框架的方法，并讨论了可能有助于改善世界高度变化的旱地景观的恢复结果的研究方向。