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'abstract_inverted_index': {"東京大学千葉演習林袋山沢流域(北緯35°12',東経140°06')において対照流域法による森林皆伐実験が行われた。A流域(0.802": [0], 'ha)を対照区,': [1], 'B流域(1.087': [2], 'ha)を処理区とした。地質は新第三紀層に属し,年平均降水量は2,170mm,年平均気温は14.2°Cである。伐採前の植生は両流域ともに約70年生のスギ•ヒノキ人工林で,': [3], 'B流域は1999年春に伐採され,2000年にスギ•ヒノキが植栽された。伐採後3年間のB流域の年流出量は増加した。年増加量は平均で295.9mm/yearであった。また伐採によって基底流出量が増加した。伐採前には寡雨時に流出が停止することがあったが,伐採後には発生しなくなり,流出が途切れなくなった。流況曲線の解析では,豊水•平水•低水•渇水各流出量は伐採後いずれも増加したが,全流出量に占める豊水流出量の割合は低下し,伐採により流出の年間一様性が増す結果となった。': [4]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2312758561', 'counts_by_year': [{'year': 2022, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 1}], 'updated_date': '2025-01-08T20:28:10.820182', 'created_date': '2016-06-24'}