{'fraction_non_alphanumeric': 0.009983361064891847, 'fraction_numerical': 0.0, 'mean_word_length': 5.473118279569892, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Sea water intrusion in the Yellow River Delta of Shandong Province based on hydrogeochemical characteristics Analysis

To study the source of sea water intrusion in the Yellow River Delta, groundwater sampling was conducted in typical sections of the Yellow River Delta. Through the analysis of major ions and isotopes of water samples, the study showed that the groundwater in the Yellow River Delta originated from ancient seawater and atmospheric precipitation deposited by sea intrusion during the geological-historical period, and there was basically no mixing of groundwater and modern seawater.