【作者】 王军； 朱鲁生； 谢慧； 孙瑞莲； 徐荣娟； 徐琦峰； 张夫道；

【Author】 WANG Jun1, ZHU Lu-sheng1, XIE Hui1, SUN Rui-lian1,2, XU Rong-juan1, XU Qi-feng1, ZHANG Fu-dao3 (1.College of Resource and Environment, Shandong Agriculture University, Tai’an271018, China;2.Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang110016, China; 3.Institute of Agriculture Resources and Regional Planning ,Chinese Academy of Agriculture Sciences, Beijing100081, China)

【机构】 山东农业大学资源与环境学院； 中国农业科学院农业资源与农业区划研究所；

【摘要】 为评价莠去津对土壤生态环境造成的影响,采用直接吸收法测定了长期定位四种典型施肥措施处理下土壤的呼吸强度。结果表明:莠去津施入土壤后,在不同的施肥措施下对土壤呼吸作用的影响不同。莠去津的施入对CK和NPK土壤的影响不大,并对NPK土壤呼吸表现出轻微的刺激效应,且这种刺激作用随莠去津浓度的增大而增强,但差异不显著。莠去津对NPK+M的土壤呼吸有明显的抑制作用,从整个测定时期的CO2释放总量看,1、5、10mg·kg-1分别比对照低38.7%、45.5%和52.2%,且这种抑制作用达到α=0.01极显著水平。莠去津对NPK+S的土壤呼吸表现出明显的促进作用,1、5、10mg·kg-1三个浓度处理在整个测定时期的CO2释放总量分别是对照的1.92倍、1.89倍和1.83倍,且这种作用都达到了α=0.05的显著水平。莠去津对土壤微生物的危害程度与肥力条件也有着密切的关系。更多还原

【Abstract】 To evaluate the influence of atrazine on the soil ecological environment, the effects of it on soil respiration were studied by closed or direct absorption method, which the soil is 4 model located fertilization for a long term. The results were as follows: After atrazine applied into the soil, the effects of it on soil respiration were different under the fertilizer measure in different mode. The effects is little of atrazine on CK and NPK soil, and atrazine expressed the slight amazing effect to NPK soil, and such amazing function go increase with the consistency raising, but the difference is not remarkable. It had obvious inhibition of atrazine on the soil of NPK +M. From the whole determined period, the total CO2 of 1,5,10 mg·kg-1 treatments were lower 38.7%,45.5% and 52.5% than the 0 mg·kg-1 treatment, respectively. And the inhibited effect reach α=0.01 extremely remarkable levels. But it demonstrate obvious stimulation on the soil of NPK +S, the total CO2 of 1,5,10 mg·kg-1 three treatments were 1.92 times, 1.89 times and 1.83 times to the contrast. And this kind of function has all reached α=0. 05 remarkable levels. There are close relations between the extent of injury of atrazine on soil microorganism with fertilizer terms.更多还原