{'fraction_non_alphanumeric': 0.021657250470809793, 'fraction_numerical': 0.009416195856873822, 'mean_word_length': 4.745945945945946, '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}}
Characteristics of nitrogen and phosphorus losses with surface runoff in typical sub-watersheds of Jiulong River watershed.

Five typicl sub-watersheds in the Jiulong River watershed were chosen for monitoring nitrogen and phosphorus losses.Results of the monitoring and analysis show that in the event of storms in agriculture-based watersheds,the N loss with the runoff is dominated with soluble N and the P loss with P combined with silt whereas in natural-forest-based ones,the situation is completely different.Under storms,the maximum total N concentration in the runoff is 2.9-11.3 times as much as that in the runoff normal and the maximum total P concentration 2.9-20.5 times as much.Throughout the entire course of runoff,water volume and N P concentration vary sharply with the time,showing a similar trend.The concentrations of total N P and their various forms come up to their respective peaks almost at the same time.The contents of silt N and soluble P fluctated within a limited range whereas those of soluble N and silt P do within a large one.