Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2337938968', 'doi': 'https://doi.org/10.3724/sp.j.1011.2010.00014', 'title': 'NPK accumulation in greenhouse soil and its effect on groundwater', 'display_name': 'NPK accumulation in greenhouse soil and its effect on groundwater', 'publication_year': 2010, 'publication_date': '2010-01-19', 'ids': {'openalex': 'https://openalex.org/W2337938968', 'doi': 'https://doi.org/10.3724/sp.j.1011.2010.00014', 'mag': '2337938968'}, 'language': 'zh-cn', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.3724/sp.j.1011.2010.00014', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210220785', 'display_name': 'CHINESE JOURNAL OF ECO-AGRICULTURE', 'issn_l': '1671-3990', 'issn': ['1671-3990'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319982', 'host_organization_name': 'Science Press', 'host_organization_lineage': ['https://openalex.org/P4310319982'], 'host_organization_lineage_names': ['Science Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5103646071', 'display_name': 'Li-Jin YUAN', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Li-Jin YUAN', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5077726609', 'display_name': 'Xiaotang Ju', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Xiao-Tang JU', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5100444043', 'display_name': 'Lijuan Zhang', 'orcid': 'https://orcid.org/0000-0001-9829-2918'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Li-Juan ZHANG', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5100440604', 'display_name': 'Jue Wang', 'orcid': 'https://orcid.org/0000-0002-3641-3136'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Jue WANG', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5102196935', 'display_name': 'Zequn Yang', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Zhi-Xin YANG', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.523, 'has_fulltext': False, 'cited_by_count': 4, 'citation_normalized_percentile': {'value': 0.643573, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 78, 'max': 79}, 'biblio': {'volume': '18', 'issue': '1', 'first_page': '14', 'last_page': '19'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11311', 'display_name': 'Biogeochemical Cycling of Nutrients in Aquatic Ecosystems', 'score': 0.9792, 'subfield': {'id': 'https://openalex.org/subfields/2304', 'display_name': 'Environmental Chemistry'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11311', 'display_name': 'Biogeochemical Cycling of Nutrients in Aquatic Ecosystems', 'score': 0.9792, 'subfield': {'id': 'https://openalex.org/subfields/2304', 'display_name': 'Environmental Chemistry'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10004', 'display_name': 'Soil Carbon Dynamics and Nutrient Cycling in Ecosystems', 'score': 0.9712, 'subfield': {'id': 'https://openalex.org/subfields/1111', 'display_name': 'Soil Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12642', 'display_name': 'Controlled Release Materials for Agriculture', 'score': 0.9655, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/soil-fertility', 'display_name': 'Soil Fertility', 'score': 0.482225}], 'concepts': [{'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.4563828}, {'id': 'https://openalex.org/C113196181', 'wikidata': 'https://www.wikidata.org/wiki/Q485223', 'display_name': 'Analytical Chemistry (journal)', 'level': 2, 'score': 0.32814205}, {'id': 'https://openalex.org/C177322064', 'wikidata': 'https://www.wikidata.org/wiki/Q750955', 'display_name': 'Radiochemistry', 'level': 1, 'score': 0.32709017}, {'id': 'https://openalex.org/C107872376', 'wikidata': 'https://www.wikidata.org/wiki/Q321355', 'display_name': 'Environmental chemistry', 'level': 1, 'score': 0.10466415}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.3724/sp.j.1011.2010.00014', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210220785', 'display_name': 'CHINESE JOURNAL OF ECO-AGRICULTURE', 'issn_l': '1671-3990', 'issn': ['1671-3990'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319982', 'host_organization_name': 'Science Press', 'host_organization_lineage': ['https://openalex.org/P4310319982'], 'host_organization_lineage_names': ['Science Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 3, 'referenced_works': ['https://openalex.org/W1997760983', 'https://openalex.org/W2009295886', 'https://openalex.org/W2021963942'], 'related_works': ['https://openalex.org/W657579294', 'https://openalex.org/W4387497383', 'https://openalex.org/W2948807893', 'https://openalex.org/W2778153218', 'https://openalex.org/W2748952813', 'https://openalex.org/W2527526854', 'https://openalex.org/W2078814861', 'https://openalex.org/W1986764834', 'https://openalex.org/W1976181487', 'https://openalex.org/W1531601525'], 'abstract_inverted_index': {'针对设施栽培中传统施肥灌溉带来的养分浪费和环境污染问题,': [0], '采集河北省定州市设施蔬菜、农田土样及相应的地下水样品,': [1], '分析了不同设施蔬菜种植年限土壤剖面中速效养分的累积规律及地下水受硝酸盐污染的程度。结果表明:': [2], '0~200': [3], 'cm和0~400': [4], 'cm设施土壤的速效养分累积均高于对照农田。低龄棚硝态氮、速效磷、速效钾及水溶性磷含量分别为377.2': [5], 'mg·kg<sup>-1</sup>、448.8': [6], 'mg·kg<sup>-1</sup>、1': [7], '405.6': [8], 'mg·kg<sup>-1</sup>、30.6': [9], 'mg·kg<sup>-1</sup>,': [10, 17], '分别是对照农田的4.7倍、4.6倍、1.4倍和11.5倍;': [11], '老龄棚硝态氮、速效磷、速效钾及水溶性磷含量分别为629.1': [12], 'mg·kg<sup>-1</sup>、555.0': [13], 'mg·kg<sup>-1</sup>、2': [14], '567.1': [15], 'mg·kg<sup>-1</sup>、35.2': [16], '分别为对照农田的6.4倍、16.3倍、2.7倍和12.0倍。设施土壤速效养分深层累积比例随棚龄增加而增加。设施蔬菜栽培区表层地下水(地下饮用水,': [18], '20': [19], 'm)受硝态氮污染严重,': [20], '超标率和严重超标率为39.3%和7.1%;': [21], '而深层地下水(农田和大棚灌溉水,': [22], '40': [23], 'm)硝态氮含量7.4': [24], 'mg·L<sup>-1</sup>和9.6': [25], 'mg·L<sup>-1</sup>,': [26], '超标率分别为25.0%和37.5%,': [27], '无严重超标水样。': [28]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2337938968', 'counts_by_year': [{'year': 2020, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-09-14T09:24:27.808299', 'created_date': '2016-06-24'}