Investigation and Evaluation on Some Elements in the Substrate Sludge of Yuqiao Reservior

doi:10.3321/j.issn:1000-7091.1991.04.022

Abstract

Abstract: At present the contents of total N and available P were relatively higher than the nature contents in 1982 in the substrate sludge of Yuqiao Reservicr. But the total P and O. M.values were lower. The release amount of ammonium nitrogen was also higher level. The potential exchangable capability of the elements in the upper reaches were equal to or lager than those in the lower reaches. The comprehensive accumulative index of nutrient elements was about 35% in the substrate sludge.

Key words: Reservior, Substrate sludge, Nutrient element, Evaluation

YinZhengZhou, Liangyan, WangXin, ShenBizhen. Investigation and Evaluation on Some Elements in the Substrate Sludge of Yuqiao Reservior[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1991, 6(4): 122-126. doi: 10.3321/j.issn:1000-7091.1991.04.022.

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