Sensitivity to agricultural inputs and dispersal limitation determine the response of arable plants to time since transition to organic farming

Transitioning to low-input agricultural systems such as organic farming has been acknowledged as a way to mitigate negative effects of agriculture on biodiversity. However, the speed, magnitude, and context dependence of biodiversity recovery after converting to organic farming remain uncertain. In this study, we explored the response of plant communities to time since transition to organic farming in a variety of production contexts. Using a spatially replicated space-for-time substitution design, we surveyed plant communities in small-grain cereal and ley fields in conventional and organic farms, distributed along independent gradients of time since transition to organic farming and proportion of seminatural grasslands in the landscapes. We selected a set of response traits to explore the mechanism of potential time lag in that response to conversion. These traits were selected to characterize the sensitivity of plant species to agricultural inputs and their ability to respond swiftly..., , , Data about plant community and functional structure, collected in cereal and ley fields along a gradient of time since transition to organic farming and proportion of surrounding semi-natural grasslands, collected in summer 2020 Authors: Name: Romain Carrié Institution: Centre for Environmental and Climate Science, Lund University Email: [[e-mail]](mailto:[e-mail]) (corresponding author) Name: Henrik Smith Institution: Department of Biology, Lund University Name: Johan Ekroos Institution: Department of Agricultural Sciences, Plant Production Sciences, University of Helsinki Two files: ``` - data_Carrie_et_al_JAPPL_dryad.xlsx: data used for the statistical tests presented in the manuscript - data_Carrie_et_al_JAPPL_dryad_species_traits.xlsx: List of species and corresponding traits used in the analysis ``` Tabs for the file data_Carrie_et_al_JAPPL_dryad.xlsx : ``` - total diversity: Species richness and species evenness of plant communities in each ...将农业生产转向有机农业等低投入农业系统，已被学界认可为缓解农业活动对生物多样性负面影响的有效途径。然而，农田转为有机种植后，生物多样性恢复的速度、幅度及其环境依赖性仍未明确。本研究针对多种生产场景，探讨了植物群落对转为有机农业时长的响应模式。 本研究采用空间重复的以空间代时间替代法（space-for-time substitution）设计，在常规农场与有机农场的小粒谷物田及短期牧草轮作田（ley fields）中开展植物群落调查；样地沿转为有机农业的时间梯度与景观尺度下半自然草地占比梯度独立布设。我们选取了一系列响应性状，以探究该群落响应存在潜在时滞的机制，所选性状用于表征植物物种对农业投入的敏感性及其快速响应能力…… 本数据集采集了2020年夏季的观测数据，涵盖沿转为有机农业时长梯度及周边半自然草地占比梯度分布的谷物田与短期牧草轮作田中植物群落与功能结构的相关信息。 作者信息： 1. Romain Carrié：隆德大学环境与气候科学中心，邮箱：[e-mail]（通讯作者） 2. Henrik Smith：隆德大学生物学系 3. Johan Ekroos：赫尔辛基大学农业科学系植物生产科学教研室 本数据集包含两个数据文件： - "data_Carrie_et_al_JAPPL_dryad.xlsx"：论文中统计检验所用的实验数据 - "data_Carrie_et_al_JAPPL_dryad_species_traits.xlsx"：分析所用物种及其对应性状列表 其中文件"data_Carrie_et_al_JAPPL_dryad.xlsx"包含以下工作表： - "total diversity"：各样地植物群落的物种丰富度与物种均匀度……