摘要： 目前于桥水库底质中总氮及速效磷含量较1982年库区自然含量相对偏高,总磷和有机质含量则相对偏低,氨态氮的释放量亦达较高水准.水库上游底质中各元素潜在交换能力要大于或等于下游底质.底质中营养元素综合累积指数在35%左右.
关键词:
水库,
底质泥,
营养元素
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
尹铮, 周良炎, 王欣, 沈碧珍. 于桥水库底质中若干元素调查与评价[J]. 华北农学报, 1991, 6(4): 122-126. doi: 10.3321/j.issn:1000-7091.1991.04.022.
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.