本数据集为2001-2018年渭河流域流经省级地区林业环境统计资料，包含森林资源情况、造林情况、天然林资源保护情况、退耕还林情况和各地区林业系统野生动植物保护及自然保护区工程建设情况。\n
\n其中，森林资源情况包括林业用地面积、森林面积、人工林、森林覆盖率、活立木总蓄积量、森林蓄积量等数据，收集年份为2003-2017年；\n
\n造林情况包括人工造林、飞机播种、用材林、经济林、防护林、薪炭林、特殊用途林、新封山育林面积等数据，收集年份为2003-2017年。\n
\n天然林资源保护情况包括本年完成造林面积、按造林方式分、按林种分、迹地更新面积、年末实有封山育林面积、本年新封面积、森林管护面积、个体承包管护、固定资产投资完成额、国家投资等数据，收集年份为2003-2017年。\n
\n退耕还林情况包括当年造林面积、退耕地造林面积、当年新封山育林面积、固定资产完成额等数据，收集年份为2003-2017年。\n
\n各地区林业系统野生动植物保护及自然保护区工程建设情况包括国际重要湿地个数、国际重要湿地面积、林业投资完成额（国家投资）、国家级自然保护区个数、国家级自然保护区面积、监测断面个数（个）、分类水质断面占全部断面百分比（Ⅰ类、Ⅱ类、Ⅲ类、Ⅳ类、Ⅴ类、劣Ⅴ类）等数据，收集年份为2001-2018年。\n
\n各字段含义见表头，数据主要来源于《中国环境统计年鉴》和渭河流域流经《省级环境统计公报》。数据集命名：渭河流域林业环境统计数据.zip。本数据集为渭河流域林业环境评价提供了基础数据。
", "ds_source": "数据来源于《中国环境统计年鉴》，收集范围为渭河流域流经的陕西省、甘肃省、宁夏回族自治区。
", "ds_process_way": "人工采集相关数据整理成excel表。
", "ds_quality": "人工整理，并经过核对和交叉验证，数据质量良好。
", "ds_acq_start_time": "2001-01-01 00:00:00", "ds_acq_end_time": "2018-12-31 00:00:00", "ds_acq_place": "渭河流域,陕西省,甘肃省,宁夏回族自治区", "ds_acq_lon_east": 110.27444444444444, "ds_acq_lat_south": 33.69611111111111, "ds_acq_lon_west": 103.9713888888889, "ds_acq_lat_north": 37.40833333333333, "ds_acq_alt_low": 3903.0, "ds_acq_alt_high": 322.0, "ds_share_type": "apply-access", "ds_total_size": 55077, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "badb3e26-2c7d-4b6e-ae33-9f5b3bd0777c.jpg", "ds_thumb_from": 2, "ds_ref_way": "张耀南，渭河流域林业环境统计数据集（2001-2018年），国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2021，doi：10.12072/ncdc.WRiver.db0019.2021", "paper_ref_way": "", "ds_ref_instruction": "用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "0d5fea4e-6fd7-4c70-b28b-3f91204c579a", "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": "2021-09-28 19:14:59", "last_updated": "2021-09-29 09:11:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.WRiver.2021.17", "i18n": { "en": { "title": "Statistical data set of forestry environment in Weihe River Basin (2001-2018)", "ds_format": "", "ds_source": "The data comes from China Environmental Statistics Yearbook, and the collection scope is Shaanxi Province, Gansu Province and Ningxia Hui autonomous region where the Weihe River Basin flows through.
", "ds_quality": "After manual sorting, verification and cross validation, the data quality is good.
", "ds_ref_way": " ", "ds_abstract": "This data set is the statistical data of forestry environment in the provincial areas flowing through the Weihe River Basin from 1999 to 2017, including forest resources, afforestation, protection of natural forest resources, conversion of farmland to forest, wildlife protection of forestry system and project construction of nature reserves in various regions.\n
\nAmong them, forest resources include forest land area, forest area, artificial forest, forest coverage, total standing stock, forest stock and other data. The collection years are 1999 and 2003-2017;\n
\nAfforestation includes artificial afforestation, aerial seeding, timber forest, economic forest, shelter forest, fuel forest, special-purpose forest, newly closed mountain area and other data. The collection years are 1999 and 2003-2017.\n
\nThe protection of natural forest resources includes the afforestation area completed this year, divided by afforestation mode, by forest species, regeneration area of slash, actual area closed for afforestation at the end of the year, newly closed area this year, seedling area this year, new area raised this year, area raised at middle and young ages, forest management and protection area, individual contracted management and protection, investment completion of fixed assets, national investment and other data, The collection years were 1999 and 2003-2017.\n
\nThe situation of returning farmland to forests includes the afforestation area, the afforestation area of returned farmland, the area of newly closed mountains for afforestation in that year, the completion amount of fixed assets and other data. The collection years are 1999 and 2003-2017.\n
\nThe construction of wildlife protection and nature reserve projects in the forestry system in each region includes the number of internationally important wetlands, the area of internationally important wetlands, the amount of forestry investment (national investment), the number of national nature reserves, the area of national nature reserves, the number of monitoring sections (pieces), and the percentage of classified water quality sections in all sections (class I, II, III, IV, V and inferior V) and other data were collected from 2001 to 2017.\n
\nThe meaning of each field is shown in the header. The data mainly comes from China Environmental Statistics Yearbook and provincial Environmental Statistics Bulletin of Weihe River Basin. The name of the data set is Weihe River Basin forestry environment statistics.zip. This data set provides basic data for Weihe River Basin forestry environment assessment.
", "ds_time_res": "年", "ds_acq_place": "Weihe River Basin, Shaanxi Province, Gansu Province, Ningxia Hui Autonomous Region", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Manually collect relevant data and sort them into excel.
", "ds_ref_instruction": " \nWhen users use data, please clearly state the source of data in the body and quote the reference method provided by this metadata in the References section." } }, "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": [ "林业环境", "森林资源", "社会经济统计数据", "统计公报" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "渭河流域", "甘肃省", "宁夏回族自治区", "陕西省" ], "ds_time_tags": [ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 ], "ds_contributors": [ { "true_name": "张耀南", "email": "yaonan@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "李红星", "email": "lihongxing@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "敏玉芳", "email": "myf@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": "社会经济文化" }