本数据为2014年东北连续多年冻土区植被、土壤数据集，数据包含3个调查样方：（1）乔木（每木检尺）（2）灌木草本（灌木层、草本层植被样方调查数据）（3）土壤（土壤鲜重、干重记录表）标准样方。于2014年7月～8月，选择地势平坦开阔、具有代表性的、多年冻土样地30个，建立标准的林木调查样方（20×20m ），记录植物种、株树以及胸径（胸径尺）等指标。在林地样方中沿对角线设置3个2×2m的灌木样方，记录灌、草种类、株树、盖度等。", "ds_source": "
在2014年7月～8月，共选择地势平坦开阔、具有代表性的、多年冻土样地30个，每个样地设置一个海拔梯度，从海拔由高到低分别设置样点。\n乔木样方：20 m×20 m；\n灌木样方： 2 m×2 m；\n草本样方： 1 m×1 m。
", "ds_process_way": "本数据表是由专人根据记录本手工录入。
", "ds_quality": "取整个样方内的活体植物和枯落物生物量、称重（精度0.1g）、烘干。同时在灌草样方内采用挖取平整地标准土壤剖面至冻土层，采用100 cm³体积的环刀获取样品，称重（精度0.1g）、烘干，再称干重获取其容重数据。植被样方及土壤样品获取参见文章。
\n\n", "ds_acq_start_time": "2017-06-01 00:00:00", "ds_acq_end_time": "2017-08-01 00:00:00", "ds_acq_place": "东北", "ds_acq_lon_east": 125.7, "ds_acq_lat_south": 46.85, "ds_acq_lon_west": 130.16666666666666, "ds_acq_lat_north": 46.2, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 177663, "ds_files_count": 5, "ds_format": "Excel表格", "ds_space_res": null, "ds_time_res": "分、日、次", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "76a8b2b8-03d0-4ae4-a144-deda42c5761c.png", "ds_thumb_from": 2, "ds_ref_way": "郭金停，2014年中国东北连续多年冻土区植被和土壤数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2020，doi：10.12072/ncdc.CCI.db0002.2020", "paper_ref_way": "", "ds_ref_instruction": "由于本数据集测定时间不尽一致，指标繁杂，如需要详细原始数据者，请联系数据管理者。\r\n联系信息：联系人姓名 郭金停 Email:guojinting0517@163.com Tel:024-83970351\r\n", "ds_from_station": null, "organization_id": "b3c14ec7-0cc1-417f-8986-b6fc1352242f", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596 ", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-12-04 14:33:35", "last_updated": "2020-12-04 14:33:35", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.CCI.2020.55", "i18n": { "en": { "title": "", "ds_format": "", "ds_source": "From July to August 2014, a total of 30 representative permafrost sample plots with flat and open terrain were selected. Each sample plot was set with an altitude gradient, and the sample points were set from high to low altitude.\nArbor quadrat: 20 m × 20 m;\nShrub plot: 2 m × 2 m;\nHerbaceous quadrat: 1 m × 1 m.
", "ds_quality": "From July to August 2014, 30 representative permafrost sample plots with flat and open terrain were selected to establish standard forest survey sample plots (20 × 20m), and plant species, trees and DBH (diameter at breast height) were recorded. Three 2 × 2m shrub quadrats were set up along the diagonal line in the woodland quadrat to record the shrub, grass species, trees, coverage, etc. the biomass of living plants and litter in the whole sample plot was taken from the harvest side, weighed (accuracy 0.1g) and dried. At the same time, in the shrub grass sample plot, the standard soil profile of leveling ground was excavated to the frozen soil layer, and the sample was obtained by using a ring knife with a volume of 100 cm3. The sample was weighed (accuracy 0.1g), dried, and then weighed dry weight to obtain its bulk density data. For vegetation and soil samples, please refer to the article.
", "ds_ref_way": "", "ds_abstract": "This data is the vegetation and soil data set of northeast continuous permafrost region in 2014. The data includes three tables: (1) arbor (per tree scale) (2) shrub herb (shrub layer, herbaceous layer vegetation sample survey data) (3) soil (fresh and dry weight record table of soil) the standard sample method was selected from July to August 2014 with flat and open terrain, representative and perennial freezing 30 soil sample plots were used to establish standard forest investigation sample (20 × 20 m) to record plant species, trees and DBH (diameter at breast height) and other indicators. Three 2 × 2m shrub quadrats were set up along the diagonal line in the woodland quadrat to record the shrub, grass species, trees, coverage, etc. the biomass of living plants and litter in the whole sample plot was taken from the harvest side, weighed (accuracy 0.1g) and dried. At the same time, in the shrub grass sample plot, the standard soil profile of leveling ground was excavated to the frozen soil layer, and the sample was obtained by using a ring knife with a volume of 100 cm3. The sample was weighed (accuracy 0.1g), dried, and then weighed dry weight to obtain its bulk density data. For vegetation samples and soil samples, please refer to the article
", "ds_time_res": "分、日、次", "ds_acq_place": "northeast", "ds_space_res": "", "ds_projection": "", "ds_process_way": "This data sheet is manually entered by a specially assigned person according to the record book.
", "ds_ref_instruction": " Because the measurement time of this data set is not consistent and the indicators are complex, if you need detailed original data, please contact the data manager.\r\nContact information: contact name Guo Jinting Email:guojinting0517@163.com Tel :024-83970351" } }, "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, "belong_to_nieer": false, "ds_topic_tags": [ "乔木样方，灌木样方，记录灌，草种类，株树，盖度，草本样方" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国，东北地区" ], "ds_time_tags": [ 2014 ], "ds_contributors": [ { "true_name": "郭金停", "email": "guojinting0517@163.com", "work_for": "中国科学院沈阳应用生态研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "郭金停", "email": "guojinting0517@163.com", "work_for": "中国科学院沈阳应用生态研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "郭金停", "email": "guojinting0517@163.com", "work_for": "中国科学院沈阳应用生态研究所", "country": "中国" } ], "category": "冻土" }