本数据为黑河上游祁连山东部干旱变化重建序列数据集，数据采集地点为黑河上游祁连山东部山区，重建序列时间为1856年-2009年，旨在研究研究黑河流域绿洲化、荒漠化过程及其驱动机制。
\n\n本数据表共有2字段：字段1：年份，数据类型：日期型；字段2：PDSI（帕默尔干旱指数），数据类型：浮点型
\n\nPDSI 量纲：无量纲
\n\n数据采集地点（37.70°N,101.91°E；37.80°N, 102.05°E；37.79°N, 102.7°E）为黑河上游祁连山东部山区。
", "ds_source": "采样，前处理、量测，建立年代，利用树木年轮信息恢复区域环境变化
", "ds_process_way": "实验室分析测试获得
", "ds_quality": "严格按照仪器操作规范进行分析测试，满足各代用指标精度要求。
", "ds_acq_start_time": "1856-01-01 00:00:00", "ds_acq_end_time": "2009-12-31 00:00:00", "ds_acq_place": "黑河上游祁连山东部", "ds_acq_lon_east": 102.7, "ds_acq_lat_south": 37.7, "ds_acq_lon_west": 101.91000000000001, "ds_acq_lat_north": 37.766666666666666, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 1057867, "ds_files_count": 4, "ds_format": "Excel", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "b229bf7f-adce-4c66-afa5-d59d83af7884.png", "ds_thumb_from": 2, "ds_ref_way": "勾晓华，黑河上游祁连山东部干旱变化重建序列数据集(1856-2009年)，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2020，doi：10.12072/ncdc.973Desert.db0004.2020", "paper_ref_way": "", "ds_ref_instruction": "使用本数据集时，请在文章中引用以下文献：Deng Y, Gou XH, Gao LL, et al. Aridity changes in the eastern Qilian Mountain s since AD 1856 reconstructed from tree-rings [J]. Quaternary Intern ational,2012,283:78-84", "ds_from_station": null, "organization_id": "eb2b3ac4-919d-433d-b987-bcee1ae83c9e", "ds_serv_man": "李红星 ", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-12-23 18:08:09", "last_updated": "2020-12-23 18:08:09", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.973Desert.2020.156", "i18n": { "en": { "title": "Reconstruction sequence data set of drought change in Eastern Qilian Mountains in the upper reaches of Heihe River (1856-2009)", "ds_format": "", "ds_source": "", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "", "ds_time_res": "年", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC 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": [ "PDSI", "干旱变化重建序列", "干旱", "帕默尔干旱指数" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "黑河上游", "祁连山东部" ], "ds_time_tags": [ 1856, 1857, 1858, 1859, 1860, 1861, 1862, 1863, 1864, 1865, 1866, 1867, 1868, 1869, 1870, 1871, 1872, 1873, 1874, 1875, 1876, 1877, 1878, 1879, 1880, 1881, 1882, 1883, 1884, 1885, 1886, 1887, 1888, 1889, 1890, 1891, 1892, 1893, 1894, 1895, 1896, 1897, 1898, 1899, 1900, 1901, 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911, 1912, 1913, 1914, 1915, 1916, 1917, 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 ], "ds_contributors": [ { "true_name": "勾晓华", "email": "xhgou@lzu.edu.cn", "work_for": "兰州大学西部环境教育部重点实验室", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "勾晓华", "email": "xhgou@lzu.edu.cn", "work_for": "兰州大学西部环境教育部重点实验室", "country": "中国" } ], "ds_managers": [ { "true_name": "王涛", "email": "wangtao@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": "勾晓华", "email": "xhgou@lzu.edu.cn", "work_for": "兰州大学西部环境教育部重点实验室", "country": "中国" } ], "category": "沙漠与荒漠化" }