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| 1 | 氮肥对盆栽欧洲水青冈生物量和营养分配的影响(英文)显示文摘调查了施加氮肥(15NH4和15NO3)处理后在两个连续生长季内欧洲水青冈(Fagus sylvatica L.)幼苗地上部分和地下部分的生物量和营养元素分配。盆栽欧洲水青冈幼苗培养于温室大棚内,培养土样取自相邻的三种林分:欧洲水青冈,挪威赤松,欧洲水青冈-赤松混交林。结果表明,氮肥(15N)处理对欧洲水青冈营养元素分配没有显著影响,施加氮素形式决定自身流入植物库的情况。欧洲水青獭收氮素主要以硝态氮的形式,因此,尽管植物体内保存的硝态氮和氨态氮并没有统计差异,但是叶片中硝态氮明显减少。施加硝态氮对欧洲水青冈氮素恢复的影响要大于施加氨态氮。与欧洲水青冈茎、粗根相比,优质根系对氮素(15N)固定是一个缓慢过程。表8图1参40。 | Ali Bagherzadeh Rainer Brumme Friedrich Beese | 2008 | Journal of Forestry Research2008，19，4： | 3 |
| 2 | Using fuzzy-AHP and parametric technique to assess soil fertility status in Northeast of Iran显示文摘A good understanding of the levels and distribution patterns of soil properties and/or quality indicators is a prerequisite for developing sustainable agricultural land management programs. Traditional assessments of these parameters of soil fertility status are somewhat costly, in both economics and time aspects. Different modelling techniques have been proposed as a useful tool for determination of soil quality indicators and development of soil fertility maps, but to what extent these results are reliable remains under-quantified in many regions worldwide. To address this uncertainty, Fuzzy-Analytical Hierarchy Process(Fuzzy-AHP) and Parametric analyses were conducted to ascertain the soil fertility status of a semiarid region in the Northeast of Iran for some selected crops: alfalfa, corn silage, potato, sugar beet, tomato and wheat. The Fuzzy-AHP and Parametric techniques using soil suitability indices were estimated for each crop and each soil delineation was achieved by Ordinary Kriging. The Technique for Order of Preference by Similarity to Ideal Solution(TOPSIS) was used as a compensatory method to allow tradeoffs among the selected criteria. Our results demonstrated that from the Fuzzy-AHP analysis, the soil fertility indices ranged from moderate to high for production of alfalfa;from low to high for production of corn silage and sugar beet;moderate to high for production of potato and tomato;and from low to moderate for production of wheat. However, the parametric analysis showed soil fertility classes ranging from very low to high for production of all the selected crops. High correlations were also observed between soil fertility indices predicted by both models. Similarly, the capacities of both models to predict soil fertility status for production of the selected crops were also highly correlated. The preference for the cultivation of the selected crops based on the Fuzzy-AHP analysis was sugar beet > corn silage > wheat > alfalfa > tomato > potato. On the other hand, using Parametric techniques, the crops preferences for cultivation ranked as corn silage > wheat > alfalfa > sugar beet > tomato > potato. We concluded that the findings would help to develop sustainable plans of cultivation based on patterns related to soil fertility classes depending on each crop’s requirement. | Ali KESHAVARZI Henry Oppong TUFFOUR Ali BAGHERZADEH Leo Paapa TATTRAH Vinod KUMAR Amin GHOLIZADEH Jesús RODRIGO-COMINO | 2020 | Journal of Mountain Science2020，17，4： | 3 |
| 3 | 温度对温带森林生态系统中森林地表腐殖质层中的氮矿化和微生物状态的影响(英文)显示文摘温度是调节许多陆地生物化学过程中如:土壤呼吸,腐殖质的分解,净氮矿化和硝化过程的一个关键因素。据推测空气和土壤温度增加会提高微生物的转化率,增加腐殖质的分解,净氮矿化,导致碳氮在森林地表腐殖质的螯合作用。为了探求温度对生物化学过程的数量化影响,连续三个月在德国索尔林场,初步调查三种林(三毛榉,挪威云杉和混合树种)地表腐殖质变化率。结果表明所有试验地点中森林地表腐殖质层温度敏感度与氮矿化的关系曲线都显正相关。在试验林地中测得了全部数据,温度敏感度值(2.35-2.44)与影响试验地的氮矿化的温度相符。各树种林地表层土质量的差异不影响森林地表腐殖质层生物化学特性的变化。温度上升增加了氮矿化作用。但温度在1-15oC范围时,微生物状态无明显变化。比较在20°C条件下,微生物碳和有机碳之比较低,表明,微生物明显减少,可利用分解物减少。图3表7参42。 | Ali Bagherzadeh Rainer Brumme Friedrich Beese | 2008 | Journal of Forestry Research2008，19，1： | 2 |
| 4 | Prevalence and Predictors of Electrical Storm in Patients With Implantable Cardioverter-Defibrillator显示文摘 | Arash Arya Majid Haghjoo Mohammad Reza Dehghani Amir Farjam Fazelifar Mohammad-Hosein Nikoo Ataollah Bagherzadeh Mohammad Ali Sadr-Ameli | 2006 | The American Journal of Cardiology2006，，3： | 1 |
| 5 | Evaluation of sediment yield in PSIAC and MPSIAC models by using GIS at Toroq Watershed, Northeast of Iran显示文摘关于在干旱、半干旱的区域的分水岭的重要性,更好保护象水坝水库那样的水供应是必要的。保存水来源的最有效的方法是把合适的管理用于减少侵蚀和沉积。这个过程的第一步是知道沉积产量(Q ^ 潜水艇 s ^)/production 并且在水库的上面的活动范围识别腐蚀地区。现在的学习试图在和平的西南内部机构的委员会(PSIAC ) 评估 Q ^ 潜水艇 s ^ 和生产,修改 PSIAC (MPSIAC ) 由使用卫星数据, GIS 分析,和领域观察当模特儿。根据结果,学习区域能被分成五个腐蚀的班:很高、高、中等、低、可以忽略。分水岭的东方部分稍微由于它的难表面地质学和相对扁平的地形学特征被侵蚀,当因为土壤的高 erodibility 潜力和区域的集中的耕作,盆的北、南部的部分高度被侵蚀时。从 PSIAC 和 MPSIAC 模型的输出地图的比较证明在大多数部分的计算 Q ^ 潜水艇 s ^ 在模型并且与领域观察通信很好。在因素(表面地质学,土壤,地形学和陆地盖子)和 Q ^代替 s ^的主要决定之间的回归的结果源于对强壮的关联系数中等的显示的每个模型( R ^啜 2 ^= 0.436-0.996 到 0.893-0.998 )在 PSIAC 和 MPSIAC 模型后面,分别地[出版摘要] | Mohammad Reza Mansouri Daneshvar Ali Bagherzadeh | 2012 | Frontiers of Earth Science2012，6，1： | 1 |
| 6 | 15N标记氮在盆栽山毛榉中的分配(英文)显示文摘温室条件下,向盆栽山毛榉幼苗中施加192g.m·-215N示踪物,研究连续两个生长季沉积氮在森林土壤(含森林地被物)、沥出物、以及地上和地下部分生物量的分配。模拟了四种处理(栽培和非栽培)下的NH4+和NO3-沉积情况,每种处理各自标记为15N-NH4+或者15N-NO3-。在整个体系中施加15N的总回收率分别是,盆栽处理的15N-NH4+为67.3%~74.9%,非盆栽处理的15N-NO3-为85.3%~88.1%。两种15N示踪物主要沉积在森林土壤(包括森林地被物)中,其中盆栽处理的森里土壤中15N-NH4+为34.6%~33.7%,15N-NO3-为13.1%~9.0%,说明异养微生物有很强的固氮作用。森林土壤微生物对15N-NH4+的固定能力比15N-NO3-的固定能力强三倍。15N-NH4+的优先异养利用造成土壤中15N-NH4+的沉积量是植物体保存量的两倍;而土壤中15N-NO3-的沉积量却低于植物体的。总之,植被-土壤系统中15N-NH4+的沉积量比15N-NO3-的沉积高了60%,说明了沉积氮的形式在森林生态系统中氮保存中的重要性。 | Ali Bagherzadeh Rainer Brumme Friedrich Beese | 2009 | Journal of Forestry Research2009，20，4： | 0 |
| 7 | 温带森林系统中碳矿化和氮氧化释放的温度依赖性研究(英文)显示文摘测定森林土壤中的CO_2和N_2O的释放,在评价森林平衡大气中CO_2和N_2O的作用方面有着重要的意义。为了量化立地对净碳矿化和N_2O氮释放温度依赖性的影响,在德国的索尔森林,调查了三毛举林,挪威云杉和混合林三种相邻的地被物,并进行了3个月不同温度的培养试验。结果表明,3种森林地被物的净碳矿化率和 N_2O 氮的释放量随温度上升呈现指数性增长。在一定温度范围内(1-20oC),利用温度系数函数(Q_10)拟合通量率来描述森林地被物的温度敏感性。各试验点的森林地被物的温度敏感性拟合曲线与净碳矿化和N_2O 氮释放率都显正相关。各试验林的全部数据表明,每个单位的净碳矿化和 N_2O 氮释放的温度系数函数值(Q_10)分别为1.73-2.10和2.81-3.58,可用以描述试验地净碳矿化和 N_2O氮释放率对温度的依赖性。在三毛举和云杉的单一树种和混合种中,净碳矿化率和 N_2O 氮释放率的温度依赖性没有明显的差异,表明净净碳矿化率和 N_2O 氮释放量不受不同树种凋落物质量的影响。 | Ali Bagherzadeh Rainer Brumme Friedrich Beese | 2008 | Journal of Forestry Research2008，19，2： | 0 |
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