Shrubs, consumer pressure, and exotic plant impacts on native forb establishment in California, USA.

<b>Purpose</b><br>To explore key drivers of native seed and seedling establishment in drylands - specifically California Deserts. <br><b>Publication</b><br>Data supporting the publication entitled '<i>Shrubs facilitate native forb re-establishment in an invaded arid shrubland</i>' in The Journal of Arid Environments.https://www.sciencedirect.com/science/article/abs/pii/S0140196318303938<b>Metadata</b><br>Full methods described in paper and within each 'year_metadata.csv' file provided.<br>Across years, key factors are consistent and include the vectors/cols plot, year, microsite, exclosure, seed_treatment, and annual_treatment for the five native forbs tested. Each year also includes abundance, but other variables varied to a limited extent.<br><br><br>

**研究目的**：探究旱地（尤以加利福尼亚荒漠为代表）中本土种子与幼苗定植的关键驱动因子。

**关联出版物**：本数据集支撑发表于《干旱环境杂志》（*The Journal of Arid Environments*）的论文《灌木在入侵干旱灌丛中促进本土草本植物（forb）重建》，论文链接：https://www.sciencedirect.com/science/article/abs/pii/S0140196318303938

**元数据**：完整实验方法已在论文及所提供的各`year_metadata.csv`文件中详述。跨年度的核心变量保持一致，涵盖本次试验中5种供试本土草本植物对应的样地（plot）、年份（year）、微生境（microsite）、围栏处理（exclosure）、种子处理（seed_treatment）以及年度处理（annual_treatment）等列或向量。各年度数据均包含丰度信息，但其余变量的变动幅度相对有限。