本数据集为黄土高原四种典型黄土（兰州、绥德、固原、天水）在不同温度下（如0℃、10℃、30℃、40℃、60℃）的土水特征曲线测量数据。通过静力压实法制备四种黄土的环刀样，并基于滤纸法测量各黄土土样在不同温度下的土水特征曲线（即黄土土样含水率与其基质吸力或总吸力的关系曲线）。该数据集表征了四种黄土在非饱和状态下的持水能力，是黄土的基本本构关系之一。该数据集能够用来诠释黄土高原不同类型黄土的物理力学行为。
\n数据集中第一列为黄土类型；第二列为测试温度以及土水特征曲线测量分支（脱湿或吸湿）说明；第三列至第六列为黄土土样试验组、干密度、初始含水率与孔隙比；第七列至第十列为黄土土样质量含水率、体积含水率、基质吸力与总吸力。", "ds_source": "
四种黄土来源为现场取样（兰州：N:36.11°，E:103.794°；绥德：N:37.48°，E:110.492°；固原：N:35.96°，E:105.76°；天水：N:34.92°，E:105.678°）。
\n测试方法为滤纸法，所用滤纸为Whatman 42号滤纸。
\n控温方式采用恒温环境箱（控温范围：-35~+60℃；控温精度：±0.1℃）、恒温冰箱（控温范围：-26~+10℃；控温精度：±0.5℃）、恒温烘箱（控温范围：RT+10~+200℃；控温精度：±1.0℃）。
", "ds_process_way": "滤纸率定方程来自Haghighi et al.（2012）、靳奉雨等（2020）、曾召田等（2023）。
\nHaghighi, A., Medero, G. M., Marinho, F. A., Mercier, B., & Woodward, P. K. (2012). Temperature effects on suction measurement using the filter paper technique. Geotechnical Testing Journal, 35(1), 83-90.
\n靳奉雨,王叶娇,孙德安 & 曾玲玲.(2020).不同龄期下石灰改良土持水特性的温度效应.土木与环境工程学报(中英文)(03),24-31.
\n曾召田,崔哲旗,孙德安,姚志 & 潘斌.(2023).南宁膨胀土持水性能的温度效应及微观机制.岩土力学(08),2177-2185.
", "ds_quality": "所用滤纸率定方程比较准确，所测土水特征曲线具有较高可靠性，能够为诠释四种黄土的物理力学行为提供数据支撑。
", "ds_acq_start_time": "2024-01-01 00:00:00", "ds_acq_end_time": "2024-12-31 00:00:00", "ds_acq_place": "兰州,绥德,固原,天水", "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": "apply-access", "ds_total_size": 36841, "ds_files_count": 0, "ds_format": ".xlsx", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "8740335c-ef03-4a91-9009-18b8a906f865.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": "", "organization_id": "bf138922-7121-438c-8d1b-19d5f751c907", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "410.30" ], "quality_level": 0, "publish_time": "2026-05-21 09:03:33", "last_updated": "2026-05-21 09:03:33", "protected": false, "protected_to": null, "lang": "zh", "cstr": "", "i18n": { "en": { "title": "The soil-water characteristic curves of different loess under different temperature conditions", "ds_format": ".xlsx", "ds_source": "The four loess samples were from in-situ sampling (Lanzhou: N:36.11, E:103.794; Suide: N:37.48, E:110.492; Guyuan: N:35.96, E:105.76; Tianshui: N:34.92, E:105.678).\r\n
The testing method used was the filter paper method, and the filter paper used was the Whatman No. 42 filter paper.\r\n
The enverinonment chamber used for temperautre control were: isotemp chamber (-35~+60°C with accuracy of ±0.1°C), isotemp freezer (-26~+10°C with accuracy of ±0.5°C), and oven (Room Temp+10~+200°C with accuracy of ±1.0°C).", "ds_quality": "
The filter paper calibration equations used are relatively accurate, and the measured soil-water characteristic curve demonstrates high reliability, providing data support for interpreting the physical and mechanical behaviors of the four types of loess.", "ds_ref_way": "", "ds_abstract": "
This dataset contains soil water characteristic curve measurement data of four typical loess types (Lanzhou, Suide, Guyuan, Tianshui) on the Loess Plateau at different temperatures (such as 0 ℃, 10 ℃, 30 ℃, 40 ℃, 60 ℃). Four types of loess ring cutter samples were prepared by static compaction method, and the soil water characteristic curves (i.e. the relationship curve between the moisture content of loess soil samples and their matrix suction or total suction) of each loess soil sample were measured at different temperatures based on filter paper method. This dataset characterizes the water holding capacity of four types of loess in an unsaturated state and is one of the basic constitutive relationships of loess. This dataset can be used to interpret the physical and mechanical behavior of different types of loess on the Loess Plateau.
\r\nThe first column in the dataset is the loess type; The second column shows the measurement branch (dehumidification or moisture absorption) for testing temperature and soil water characteristic curve; The third to sixth columns are the loess soil sample test group, dry density, initial moisture content, and porosity ratio; The seventh to tenth columns are the mass moisture content, volume moisture content, matric suction, and total suction of loess soil samples.", "ds_time_res": "", "ds_acq_place": "Lanzhou, Suide, Guyuan, Tianshui", "ds_space_res": "", "ds_projection": "", "ds_process_way": "
The calibration equations used for the filter paper were based on Haghighi et al. (2012), Jin et al. (2020), and Zeng et al. (2023).\r\n
Haghighi, A., Medero, G. M., Marinho, F. A., Mercier, B., & Woodward, P. K. (2012). Temperature effects on suction measurement using the filter paper technique. Geotechnical Testing Journal, 35(1), 83-90.\r\n
Jin, F.Y., Wang, Y.J., Sun, D.A., & Zeng, L.L. (2020). Temperature effect on the water retention curve of lime-treated soil during curing. Journal of Civil and Environmental Engineering, (03), 24-31.\r\n
Zeng, Z.T., Cui, Z.Q., Sun, D.A., Yao, Z., & Pan, B. (2023). Temperature effect on water retention capacity of Nanning expansive soil and its microscopic mechanism. Rock and Soil Mechanics, (08), 2177-2185.", "ds_ref_instruction": "The first column in the dataset indicates the type of loess; the second column provides a description of the test temperature and the measurement branch (drying or wetting) of the soil-water characteristic curve; the third to sixth columns detail the experimental group, dry density, initial moisture content, and void ratio of the loess sample; the seventh to tenth columns present the gravimetric moisture content, volumetric moisture content, matric suction, and total suction of the loess sample." } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "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": [ "黄土", "土水特征曲线", "温度" ], "ds_subject_tags": [ "工程地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "兰州", "绥德", "固原", "天水" ], "ds_time_tags": [ 2024 ], "ds_contributors": [ { "true_name": "任君平", "email": "renjp@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "任君平", "email": "renjp@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_managers": [ { "true_name": "任君平", "email": "renjp@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "category": "其他" }