本数据集在2017-2020年期间，在内蒙古阿拉善左旗巴润别立镇巴音朝格图嘎查选择典型的退化的红砂—无芒隐子草放牧草地为试验样地，样地总面积3345亩，开展退化草地封育恢复与更新复壮及持续利用技术研究。（缺少2018年数据）\n
", "ds_source": "于2017年4月，选择1953亩草地，以家畜宿营点为中心，分割成9个小区，以家畜介入时间的长短（即轮牧天数2天、8天和11天）为处理因子，设置三个处理（见表1），每个处理3个重复，各小区面积为200亩，同时，在每一小区内设置一个50m×50m的围封小样地（标记为W1-W9），作为封育处理；围封小样地外设置对照，分别标记为Z1-Z9。每小区重复放牧介入间隔周期（轮牧周期）90天，处理样地外剩余1392亩草地作为缓冲区，配合轮牧周期，每次放牧29-31天。放牧强度按当地建议载畜量40亩/羊单位/年计算，每小区放70只羊。每个处理小区内监测植物物种数、株数、高度及盖度，灌木新枝比例，禾草生殖枝比例。土壤监测指标为容重、有机碳、全氮、全磷。在剩余1392亩草地上，以该牧场畜圈为中心，在距离畜圈50m， 500m，和1000m处依据放牧对植被的影响程度选择设置三个100m×100m的样地：重度放牧（T1）、中度放牧（T2）和轻度放牧（T3），拟开展不同放牧强度对草地植被及土壤理化性质影响的研究。调查草本植物的物种数、株数、植被高度和盖度；测定植被地上、地下生物量；分析土壤有机碳、土壤全氮、土壤全磷等指标。\n\n\n\n\n
", "ds_process_way": "（1）土壤有机碳的测定；重铬酸钾氧化-分光光度法（HJ 615-2011）\n
（2）土壤质量全氮的测定：凯氏法(HJ 717—2014)\n
（3）土壤速效磷测定：NaHCO3浸提——钼锑抗比色法\n
（4）土壤全磷测定：HClO4—H2SO4法\n
（5）土壤容重测定：环刀法\n
（6）土壤呼吸测定：动态气室与红外气体分析器相结合", "ds_quality": "
数据比较准确，达到精度要求。\n
", "ds_acq_start_time": "2017-07-01 00:00:00", "ds_acq_end_time": "2020-06-01 00:00:00", "ds_acq_place": "内蒙古阿拉善左旗巴润别立镇巴音朝格图嘎查", "ds_acq_lon_east": 105.0, "ds_acq_lat_south": 38.0, "ds_acq_lon_west": 105.0, "ds_acq_lat_north": 38.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 162000, "ds_files_count": 3, "ds_format": "Excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "0cf6e0a9-bf18-4dbd-8967-e611c3f7f43c.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "ab053fbf-7b27-4c1a-b8e5-cab5b8f00480", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.Dgrass.db2114.2022", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2022-05-20 17:02:00", "last_updated": "2022-05-25 11:18:52", "protected": false, "protected_to": "2024-10-12 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.Dgrass.db2114.2022", "i18n": { "en": { "title": "Soil data set of rotational grazing and different grazing experiments on degraded grassland in Alxa Left Banner, Inner Mongolia Autonomous Region (2017-2020)", "ds_format": "", "ds_source": " <p> In April 2017, 1953 acres of grassland was selected, with livestock camps as the center, divided into 9 communities, with the length of livestock intervention time (that is, the number of rotation days of 2 days, 8 days, and 11 days) as the processing factors, and three Treatment (see Table 1), each treatment has 3 replicates, each plot area is 200 mu, and at the same time, a 50m × 50m enclosed small plot (marked as W1-W9) is set up in each plot as an enclosure treatment ; Controls are set outside the enclosed small plots, marked as Z1-Z9 respectively. The interval period of repeated grazing interventions in each plot (grazing rotation period) is 90 days, and the remaining 1392 mu of grassland outside the treatment plot is used as a buffer zone. In conjunction with the grazing rotation period, each grazing period is 29-31 days. The grazing intensity is calculated based on the local recommended stocking capacity of 40 mu/sheep unit/year, and 70 sheep per community. The number of plant species, number of plants, height and coverage, the proportion of new branches of shrubs, and the proportion of reproductive branches of grasses are monitored in each treatment plot. Soil monitoring indicators are bulk density, organic carbon, total nitrogen, and total phosphorus. On the remaining 1392 acres of grassland, with the livestock pen of the pasture as the center, choose to set three 100 m × 100 m plots at a distance of 50 m, 500 m, and 1000 m from the livestock pen according to the impact of grazing on vegetation: heavy Grazing (T1), moderate grazing (T2) and light grazing (T3), it is planned to carry out research on the influence of different grazing intensity on grassland vegetation and soil physical and chemical properties. Investigate the number of species, plant numbers, vegetation height and coverage of herbaceous plants; determine the aboveground and underground biomass of vegetation; analyze soil organic carbon, soil total nitrogen, soil total phosphorus and other indicators.\n <p> The data are more accurate and meet the accuracy requirements.</p>\nDuring 2017-2020, this data set selected the typical degraded red sand awnless Cryptomeria grazed grassland as the experimental sample land in bayinchaogetugacha, barumbelli Town, Alxa Left Banner, Inner Mongolia, with a total area of 3345 mu, to carry out the research on the enclosure, restoration, renewal, rejuvenation and sustainable utilization technology of degraded grassland. (missing 2018 data)\n
", "ds_time_res": "", "ds_acq_place": "Bayinchaogetugacha, Barun bieli Town, Alxa Left Banner, Inner Mongolia", "ds_space_res": "", "ds_projection": "", "ds_process_way": " <p> (1) Determination of soil organic carbon; potassium dichromate oxidation-spectrophotometry (HJ 615-2011)\n(2) Soil quality Determination of total nitrogen: Kjeldahl method (HJ 717—2014)\n
(3) Determination of soil available phosphorus: NaHCO3 extraction-molybdenum antimony colorimetric method \n
(4) Determination of total phosphorus in soil: HClO4-H2SO4 method \n
(5) Determination of soil bulk density: ring knife method\n
(6) Determination of soil respiration: combination of dynamic air chamber and infrared gas analyzer", "ds_ref_instruction": " " } }, "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": [ "土壤有机碳含量", "土壤全氮含量", "土壤全磷含量" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "内蒙古阿拉善左旗巴润别立镇巴音朝格图嘎查" ], "ds_time_tags": [ 2017, 2019, 2020 ], "ds_contributors": [ { "true_name": "左小安", "email": "zuoxa@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "傅华", "email": "fuhua@lzu.edu.cn", "work_for": "兰州大学草地农业科技学院", "country": "中国" }, { "true_name": "牛得草", "email": "xiaocao0373@163.com", "work_for": "兰州大学草地农业科技学院", "country": "中国" }, { "true_name": "高宝兰", "email": "wlthcyz@163.com", "work_for": "乌拉特后旗草原管理站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "左小安", "email": "zuoxa@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "傅华", "email": "fuhua@lzu.edu.cn", "work_for": "兰州大学草地农业科技学院", "country": "中国" }, { "true_name": "牛得草", "email": "xiaocao0373@163.com", "work_for": "兰州大学草地农业科技学院", "country": "中国" }, { "true_name": "高宝兰", "email": "wlthcyz@163.com", "work_for": "乌拉特后旗草原管理站", "country": "中国" } ], "ds_managers": [ { "true_name": "左小安", "email": "zuoxa@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "生态" }