本数据集由中国科学院西北生态环境资源研究院分析完成，数据包括塔克拉玛干沙漠南北2个典型地质剖面(NY-01和LB-03剖面)随深度变化的粒度组成和TOC、TN含量数据。粒度分析仪器为Mastersizer 2000激光粒度分析仪器，测试范围为0.02-2000 μm；TOC和TN采用重铬酸钾分光光度法和凯氏定氮法。该数据反映了塔克拉玛干沙漠南北不同地点地质沉积的物质组成和土壤养分特征，对重建过去绿洲沙漠演化等方面的研究具有重要意义。
", "ds_source": "该数据通过对塔克拉玛干沙漠南北2个典型地质剖面(NY-01和LB-03剖面)随深度进行样品进行采集，利用专业仪器测量获得。
", "ds_process_way": "LB-03剖面样品按照0.15m间距采样，NY-01按照0.1m间距采样。表样品粒度分析仪器为Mastersizer 2000激光粒度分析仪器，测试范围为0.02-2000 μm；TOC和TN采用重铬酸钾分光光度法和凯氏定氮法。
", "ds_quality": "该数据粒度按照中华人民共和国国家标准，粒度分布激光衍射法GB/T 19077-2016/ISO 13320:2009；TOC测定按照国际标准ISO 14235-1998，GB/T5009.5-2010；TN测定按照国际标准ISO 13878:1998。数据误差0.01，数据合格。
", "ds_acq_start_time": "2022-01-01 00:00:00", "ds_acq_end_time": "2022-12-31 00:00:00", "ds_acq_place": "塔克拉玛干沙漠", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 889817, "ds_files_count": 4, "ds_format": "表格", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "3c98fc27-d059-4555-8261-30975c56e864.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 1, "publish_time": "2024-09-25 11:57:47", "first_publish_time": "2024-09-25 11:57:47", "last_updated": "2025-09-09 11:03:11", "protected": false, "protected_to": "2025-10-31 00:00:00", "lang": "zh", "cstr": "33110.11.XIEG.xjsedata.2022.00000140", "license": null, "extra": null, "files_shape": [ { "name": "实体数据", "size": null, "is_dir": true }, { "name": "附件", "size": null, "is_dir": true } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "Data set of late Pleistocene paleoenvironmental proxy indicators in Taklimakan Desert", "ds_abstract": "This data set was analyzed and completed by the Northwest Institute of Ecology, Environment and Resources, China Academy of Sciences. The data includes the grain size composition and TOC and TN content data of two typical geological profiles (NY-01 and LB-03 profiles) in the north and south of the Taklimakan Desert. The particle size analysis instrument is a Mastersizer 2000 laser particle size analysis instrument with a test range of 0.02-2000 μm;TOC and TN use potassium dichromate spectrophotometry and Kjeldahl nitrogen determination method. This data reflects the material composition and soil nutrient characteristics of geological sediments at different locations in the north and south of the Taklimakan Desert, and is of great significance for reconstructing past oases and deserts evolution.
", "ds_source": "This data was obtained by collecting samples from two typical geological sections (NY-01 and LB-03 sections) in the north and south of the Taklimakan Desert with depth and measuring them using professional instruments.
", "ds_process_way": "Samples from LB-03 profile are sampled at 0.15m intervals, and samples from NY-01 are sampled at 0.1m intervals. The particle size analysis instrument of the table sample is a Mastersizer 2000 laser particle size analysis instrument, with a test range of 0.02-2000 μm;TOC and TN use potassium dichromate spectrophotometry and Kjeldahl nitrogen determination method.
", "ds_quality": "The particle size of this data is in accordance with the national standards of People's Republic of China, particle size distribution laser diffraction method GB/T 19077-2016/ISO13320:2009;TOC is determined according to international standards ISO14235 -1998, GB/T5009.5-2010;TN is determined according to international standard ISO13878:1998. The data error is 0.01, and the data is qualified.
", "ds_acq_place": "taklimakan desert", "ds_format": "form" } }, "license_type": null, "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "土壤剖面", "土壤粒度" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "塔克拉玛干沙漠" ], "ds_time_tags": [ 2022 ], "ds_contributors": [ "高鑫", "周杰", "赵永成" ], "ds_meta_authors": [ "刘冰" ], "ds_managers": [ "刘冰" ], "category": "沙漠与荒漠化" }