{"created": "2018-07-05 09:54:04", "updated": "2024-03-29 03:31:13", "id": "6c869921-e96f-40d3-9824-5006a99a31a0", "version": 3, "ds_topic": null, "title_cn": "黑河流域土壤质地数据(2011)", "title_en": "Soil texture dataset of the Heihe river basin (2011)", "ds_abstract": "
该数据采用1KM空间分辨率和WGS-84投影方式,土壤质地属性和类别均表示表层0-30cm土壤质地属性,通过深度加权平均而来。属性表中texname表示土壤质地类型名称;sandrange, siltrange, clayrange分别表示USDA土壤三角图中砂粒、粉粒、粘粒含量范围,sandaverage, siltaverage, clayaverage取自实测土壤剖面的砂粒、粉粒、粘粒含量平均值,作为该土壤类型的砂粉粘含量。(注:粘壤土各粒级含量来源于北师大土壤质地图)。土壤质地分类标准为美国USDA制,砂粒粒级定义为(2~0.05mm),粉粒粒级为(0.05~0.002mm)及粘粒粒级定义为(<0.002mm)。
", "ds_source": "黑河流域已有土壤质地图、土壤剖面
", "ds_process_way": "黑河流域土壤质地数据(2011)是刘超等(2011)利用SOLIM模型,基于著名的土壤学Jenny方程,根据气候、生物、地形、母质等环境因子等,在黑河流域已有土壤质地图、土壤剖面的基础上,利用知识挖掘和模糊逻辑相结合的方法产生的,并融合了冰川、湖泊等专题图内容。制图方法根据黑河流域六个生态分区的不同特点,上中下游分别采用不同的制图方法。
", "ds_quality": "", "ds_acq_start_time": "2011-01-01 00:00:00", "ds_acq_end_time": "2011-12-31 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 104.199722222222, "ds_acq_lat_south": 37.7, "ds_acq_lon_west": 96.0166666666667, "ds_acq_lat_north": 43.25, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "在线下载", "ds_total_size": 40734, "ds_files_count": 1, "ds_format": "grid", "ds_space_res": "1000.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "6c869921-e96f-40d3-9824-5006a99a31a0.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": ["170.4510"], "quality_level": 3, "publish_time": "2020-12-30 09:29:29", "last_updated": "2023-09-04 13:23:14", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.381", "license": null, "ds_topic_tags": ["土壤质地", "土壤", "砂粒,粉粒,粘粒"], "ds_subject_tags": ["自然地理学"], "ds_class_tags": [], "ds_locus_tags": ["黑河流域"], "ds_time_tags": [2011], "ds_contributors": ["卢玲"], "ds_meta_authors": ["刘超"], "ds_managers": ["卢玲"], "category": "基础地理"}