CAJ | 학술논문

研究了武汉菱角湖沉积物中N、P元素的水平和垂向分布特征，采集并分析了3个深达0．5～1．0 m的沉积柱．结果表明：全湖沉积物中平均P含量为（0．76±0．23）～（1．32±0．35） g／kg．湖心点沉积物总氮含量最高，高达（10．96±0．83） g／kg，沿岸两个点总磷含量分别为（8．34±0．12） g／kg和（9．26±1．21） g／kg．在垂向呈阶段性变化，N、P呈现阶段性变化，垂向分布上40 cm以内的中表层沉积物的营养元素含量高于稳定层，但表层含量（0～20 cm）反而低于中层（20～40 cm）．说明对营养元素的外源控制达到了一定效果，沉积物中氮磷元素均有所降低，但沉积物中的高含量的N、P元素仍是湖泊的主要来源．
연구료무한릉각호침적물중N、P원소적수평화수향분포특정，채집병분석료3개심체0．5～1．0 m적침적주．결과표명：전호침적물중평균P함량위（0．76±0．23）～（1．32±0．35） g／kg．호심점침적물총담함량최고，고체（10．96±0．83） g／kg，연안량개점총린함량분별위（8．34±0．12） g／kg화（9．26±1．21） g／kg．재수향정계단성변화，N、P정현계단성변화，수향분포상40 cm이내적중표층침적물적영양원소함량고우은정층，단표층함량（0～20 cm）반이저우중층（20～40 cm）．설명대영양원소적외원공제체도료일정효과，침적물중담린원소균유소강저，단침적물중적고함량적N、P원소잉시호박적주요래원．
To investigate the spatial distribution of nitrogen ( N) and phosphorus ( P) in the sediments of Lingjiaohu Lake , three sedimentary columns up to 0.5~1.0m were acquired and analyzed .The results indicated that the average P contents was (0.76 ±0.23)~(1.32 ±0.35) g/kg.The total N content in the sediments of the middle of the lake was the highest , up to (10.96 ±0.83) g/kg;while in two of the offshore sampling points , it was(8.34 ±0.12)g/kg and(9.26 ±1.21)g/kg respectively.The distribution of nutritive elements also varies vertically , the N, P content in the 0~40 cm surface layer was higher than that in the deeper section .However, the N,P content in the 0~20 cm surface region was lower than that in 20~40 cm the middle layer , suggesting that the measures for the control of nutritive elements in recent years have achieved some effect.The N, P content in the sediments have reduced , but are still in a high level and remain the major endogenous load of the lake .