Boston Trustees urban garden crop and tree data

This dataset includes field data collected from gardens plots in 38 urban gardens across the city of Boston in 9 neighborhoods: Dorchester, East Boston, Fenway, Hyde Park, Jamaica Plain, Mattapan, Mission Hill, Roxbury, and South End across 3 seasons: spring, summer, and fall (June 3-7, 2021; August 25-26, 2021; October 23-24, 2021). Neighborhood borders were defined by census tract block group designations available from the city (Department of Innovation and Technology 2021). Census data was taken from American Community Survey -1 year estimates for 2021 available from the U.S. Census Bureau. For each garden, all plots were hand mapped on site by researchers, enumerated, and then randomly selected using a number generator for further census. In each plot, every individual crop plant was counted and identified to species and cultivar if known or marked by gardeners. In addition, the number and species of each tree in the garden was surveyed. We identified each crop species (no ornamental, non-edible plants were surveyed other than communal garden trees) and classified each plant species as annual or perennial according to whether they could survive across multiple growing seasons in the temperate region and are practiced as perennial crops, ie. gardeners do not typically remove the entire plant at the end of growing season. Biennial and woody plants were all classified as perennial. We classified all crops according to USDA classifications as vegetable, fruit, grain, culinary, medicinal, and combinations of these classifications. We also include an R notebook with code used to generate figures and run analyses supporting the work entitled, "Rooting in place: Trees and perennials reflect permanence in urban gardens and communities" by the authors listed. A knitted html for R Markdown file is also included in PDF format.本数据集涵盖2021年于波士顿市9个社区的38处城市菜园采集的地块实地调查数据，涉及社区包括多切斯特（Dorchester）、东波士顿（East Boston）、芬威（Fenway）、海德公园（Hyde Park）、牙买加平原（Jamaica Plain）、马特潘（Mattapan）、使命山（Mission Hill）、罗克斯伯里（Roxbury）及南端（South End），数据采集分三个季节完成：2021年6月3日至7日（春季）、8月25日至26日（夏季）、10月23日至24日（秋季）。 社区边界由波士顿市创新与技术部（Department of Innovation and Technology 2021）发布的普查区块组（census tract block group）标识定义。普查数据取自美国人口普查局（U.S. Census Bureau）公布的2021年美国社区调查（American Community Survey）1年期估算数据。 针对每一处菜园，研究人员均在现场手工绘制所有地块的分布图并进行编号登记，随后通过随机数生成器随机选取地块开展后续普查。在每块地块中，研究人员会计数所有作物植株，并对其进行物种鉴定，若已知品种则同时鉴定至栽培品种（cultivar），或记录园丁标注的品种信息。此外，还对菜园内每一棵树木的数量及物种进行了调查。 本次调查仅针对作物物种（除公共菜园的树木外，未调查观赏类非食用植物），并依据温带地区作物能否跨多个生长季存活且被作为多年生作物栽培（即园丁通常不会在生长季结束时将整株移除），将所有植物物种划分为一年生或多年生。两年生植物与木本植物均归类为多年生。同时参照美国农业部（USDA）分类标准，将所有作物划分为蔬菜、水果、谷物、调味作物、药用作物及上述类别的组合类型。 本数据集还附带一份R语言笔记（R notebook），内含用于生成图表及运行分析的代码，对应研究成果为论文《扎根于此：树木与多年生植物彰显城市菜园及社区的持久性》（Rooting in place: Trees and perennials reflect permanence in urban gardens and communities），作者信息随附。此外还附带一份已编织完成的R Markdown HTML文件的PDF版本。