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基本信息字段 字段内容
中文标题 青藏高原草地生态功能图集(2000-2020)
英文标题 Ecological functions of grasslands on the Qinghai-Tibet Plateau atlas (2000-2020)
中文摘要 土壤保持、防风固沙和水源涵养量是青藏高原草地生态功能的核心指标。土壤保持量反映草地减少土壤侵蚀的能力,防风固沙量衡量草地抑制风蚀和固沙的效果,水源涵养量体现草地储存和调节水资源的能力。这三者对维护青藏高原生态安全、保护“中华水塔”和生物多样性至关重要。数据来源于2000-2020年FPAR遥感数据(MODIS MCD15A2及NDVI3g融合,8天、1km分辨率)、气象数据(1098个站插值,8天、1km)、土壤质地和DEM数据。采用GLCV-ES模型,整合通用水土流失方程和修正风力侵蚀模型,计算土壤侵蚀减少量、防风固沙量及水量平衡下的水源涵养量。数据分辨率为1km,经过2000-2020年结果进行平均得到。未来可为青藏高原生态修复和高质量发展提供科学支撑,促进区域可持续发展。
英文摘要 Soil conservation, wind and sand protection, and water conservation are core indicators of the ecological functions of the Qinghai-Tibet Plateau grasslands. Soil conservation reflects the grassland's ability to reduce soil erosion, wind and sand protection measures the grassland's capacity to suppress wind erosion and stabilize sand, and water conservation indicates the grassland's ability to store and regulate water resources. These three indicators are critical for maintaining the ecological security of the Qinghai-Tibet Plateau, safeguarding the "Chinese Water Tower," and preserving biodiversity. The data were derived from 2000-2020 FPAR remote sensing data (MODIS MCD15A2 and NDVI3g fusion, 8-day, 1-km resolution), meteorological data (interpolated from 1098 stations, 8-day, 1-km resolution), soil texture, and DEM data. The GLCV-ES model, integrating the Universal Soil Loss Equation and a revised wind erosion model, was used to calculate soil conservation, wind and sand protection, and water conservation under a water balance framework. The data has a resolution of 1 km and is obtained by averaging the results from 2000 to 2020. These data support future ecological restoration and high-quality development on the Qinghai-Tibet Plateau, promoting regional sustainability.
数据文件命名方式和使用方法 文件命名:图集文件以生态功能指标的英文名命名,例如Soil conservation,在空格处以下划线替代。分布图以jpg、tif图像格式存储,图集以jpg格式存储共三个文件;空间数据以tif存储三个文件,以*.twf、*.xml、*.clr、*.ovr、*.cpg、*.dbf存储tif的属性信息。数据读取方式:jpg 图像可以用常见的图像查看软件如 Adobe Photoshop、Windows 照片查看器等打开查看,tif数据可以用ArcGIS、ENVI等软件打开查看。
英文数据文件命名方式和使用方法 File Naming: The atlas files are named after the English names of ecological function indicators, such as `Soil_Conservation`, with spaces replaced by underscores. Distribution maps are stored in JPG and TIF image formats, with the atlas stored as three JPG files. Spatial data is stored as three TIF files, with their attribute information stored in `*.twf`, `*.xml`, `*.clr`, `*.ovr`, `*.cpg`, and `*.dbf` files. Data Access: JPG images can be viewed using common image viewing software such as Adobe Photoshop or Windows Photo Viewer. TIF data can be opened and viewed using software like ArcGIS or ENVI.
文件大小(MB) 489 MB
时间范围 2000-2020
共享政策 C.离线共享:必须由数据提供者回复邮件决定是否共享,作者三天内不回复邮件则给用户发送邮件直接与数据作者联系。
数据集序列
数据使用许可
使用条款 为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力,请数据使用者在使用数据所产生的研究成果中(包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果),明确注明数据来源和数据作者。对于转载(二次或多次发布)的数据,作者还须注明原始数据来源。
使用条款的英文
DOI类别 A.拥有自主知识产权
DOI
保护期时长 2年
保护期说明
空间范围:西 东经73.48度
空间范围:东 东经105.63度
空间范围:南 北纬24.66度
空间范围:北 北纬40.67度
比例尺
时间分辨率
空间分辨率 100m-1km
投影 Albers