有没有相关的论文或文献参考？
这个数据集是基于什么背景创建的？
数据集的作者是谁？
能帮我联系到这个数据集的作者吗？
这个数据集如何下载？
Plant height on insect abundance as measured by quadrats in York University's Pond Rd grasslands
收藏Mendeley Data2024-01-31 更新2024-06-28 收录
下载链接：
https://figshare.com/articles/dataset/Plant_height_on_insect_abundance_as_measured_by_quadrats_in_York_University_s_Pond_Rd_grasslands/1588559/1
下载链接
链接失效反馈资源简介：
Quadrat samples were randomly taken at the grassland area of York University's Pond Rd on October 13th and October 20th, 2015. Plant height was measured using transect tape and the average plant height of each quadrat was calculated using the principle of mean data values. Insect abundance was a visual count of all insect individuals regardless of the species that were found in the area. The concrete ecosystem was that which had no grass on it and was found on the road near the grasslands. The short grass ecosystem consisted of grass 2 to 5 inches in length found in patches at the grassland. The tall grass ecosystem consisted of tall species of grass anywhere from 5-35 inches in height found in patches near the grasslands.
创建时间：
2024-01-31
数据主题
5,000+
优质数据集
54 个
任务类型
进入经典数据集
热门数据集
全国 1∶200 000 数字地质图（公开版）空间数据库
As the only one of its kind, China National Digital Geological Map (Public Version at 1∶200 000 scale) Spatial Database (CNDGM-PVSD) is based on China' s former nationwide measured results of regional geological survey at 1∶200 000 scale, and is also one of the nationwide basic geosciences spatial databases jointly accomplished by multiple organizations of China. Spatially, it embraces 1 163 geological map-sheets (at scale 1: 200 000) in both formats of MapGIS and ArcGIS, covering 72% of China's whole territory with a total data volume of 90 GB. Its main sources is from 1∶200 000 regional geological survey reports, geological maps, and mineral resources maps with an original time span from mid-1950s to early 1990s. Approved by the State's related agencies, it meets all the related technical qualification requirements and standards issued by China Geological Survey in data integrity, logic consistency, location acc racy, attribution fineness, and collation precision, and is hence of excellent and reliable quality. The CNDGM-PVSD is an important component of China' s national spatial database categories, serving as a spatial digital platform for the information construction of the State's national economy, and providing informationbackbones to the national and provincial economic planning, geohazard monitoring, geological survey, mineral resources exploration as well as macro decision-making.
DataCite Commons 收录
Tropicos
Tropicos是一个全球植物名称数据库，包含超过130万种植物的名称、分类信息、分布数据、图像和参考文献。该数据库由密苏里植物园维护，旨在为植物学家、生态学家和相关领域的研究人员提供全面的植物信息。
www.tropicos.org 收录
中国区域地面气象要素驱动数据集 v2.0（1951-2020）
中国区域地面气象要素驱动数据集（China Meteorological Forcing Data，以下简称 CMFD）是为支撑中国区域陆面、水文、生态等领域研究而研发的一套高精度、高分辨率、长时间序列数据产品。本页面发布的 CMFD 2.0 包含了近地面气温、气压、比湿、全风速、向下短波辐射通量、向下长波辐射通量、降水率等气象要素，时间分辨率为 3 小时，水平空间分辨率为 0.1°，时间长度为 70 年（1951~2020 年），覆盖了 70°E~140°E，15°N~55°N 空间范围内的陆地区域。CMFD 2.0 融合了欧洲中期天气预报中心 ERA5 再分析数据与气象台站观测数据，并在辐射、降水数据产品中集成了采用人工智能技术制作的 ISCCP-ITP-CNN 和 TPHiPr 数据产品，其数据精度较 CMFD 的上一代产品有显著提升。 CMFD 历经十余年的发展，其间发布了多个重要版本。2019 年发布的 CMFD 1.6 是完全采用传统数据融合技术制作的最后一个 CMFD 版本，而本次发布的 CMFD 2.0 则是 CMFD 转向人工智能技术制作的首个版本。此版本与 1.6 版具有相同的时空分辨率和基础变量集，但在其它诸多方面存在大幅改进。除集成了采用人工智能技术制作的辐射和降水数据外，在制作 CMFD 2.0 的过程中，研发团队尽可能采用单一来源的再分析数据作为输入并引入气象台站迁址信息，显著缓解了 CMFD 1.6 中因多源数据拼接和气象台站迁址而产生的虚假气候突变。同时，CMFD 2.0 数据的时间长度从 CMFD 1.6 的 40 年大幅扩展到了 70 年，并将继续向后延伸。CMFD 2.0 的网格空间范围虽然与 CMFD 1.6 相同，但其有效数据扩展到了中国之外，能够更好地支持跨境区域研究。为方便用户使用，CMFD 2.0 还在基础变量集之外提供了若干衍生变量，包括近地面相对湿度、雨雪分离降水产品等。此外，CMFD 2.0 摒弃了 CMFD 1.6 中通过 scale_factor 和 add_offset 参数将实型数据化为整型数据的压缩技术，转而直接将实型数据压缩存储于 NetCDF4 格式文件中，从而消除了用户使用数据时进行解压换算的困扰。 本数据集原定版本号为 1.7，但鉴于本数据集从输入数据到研制技术都较上一代数据产品有了大幅的改变，故将其版本号重新定义为 2.0。CMFD 2.0 的数据内容与此前宣传的 CMFD 1.7 基本一致，仅对 1983 年 7 月以后的向下短/长波辐射通量数据进行了更新，以修正其长期趋势存在的问题。2021 年至 2024 年的 CMFD 数据正在制作中，计划于 2025 年上半年发布，从而使 CMFD 2.0 延伸至 2024 年底。
国家青藏高原科学数据中心 收录
Population and Housing Census of 2007 - Ethiopia
Geographic coverage --------------------------- National coverage Analysis unit --------------------------- Household Person Housing unit Universe --------------------------- The census has counted people on dejure and defacto basis. The dejure population comprises all the persons who belong to a given area at a given time by virtue of usual residence, while under defacto approach people were counted as the residents of the place where they found. In the census, a person is said to be a usual resident of a household (and hence an area) if he/she has been residing in the household continuously for at least six months before the census day or intends to reside in the household for six months or longer. Thus, visitors are not included with the usual (dejure) population. Homeless persons were enumerated in the place where they spent the night on the enumeration day. The 2007 census counted foreign nationals who were residing in the city administration. On the other hand all Ethiopians living abroad were not counted. Kind of data --------------------------- Census/enumeration data [cen] Mode of data collection --------------------------- Face-to-face [f2f] Research instrument --------------------------- Two type sof questionnaires were used to collect census data: i) Short questionnaire ii) Long questionnaire Unlike the previous censuses, the contents of the short and long questionnaires were similar both for the urban and rural areas as well as for the entire city. But the short and the long questionnaires differ by the number of variables they contained. That is, the short questionnaire was used to collect basic data on population characteristics, such as population size, sex, age, language, ethnic group, religion, orphanhood and disability. Whereas the long questionnaire includes information on marital status, education, economic activity, migration, fertility, mortality, as well as housing stocks and conditions in addition to those questions contained in a short questionnaire.
catalog.ihsn.org 收录
URPC系列数据集, S-URPC2019, UDD
URPC系列数据集包括URPC2017至URPC2020DL，主要用于水下目标的检测和分类。S-URPC2019专注于水下环境的特定检测任务。UDD数据集信息未在README中详细描述。
github 收录