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| 1 | 黄土丘陵区林草退耕年限对土壤团聚体特征的影响显示文摘随着国家退耕还林还草战略的实施、植被覆盖的变化,林、草地植被恢复进程中土壤团聚体特征的变化受到广泛关注.本研究以黄土丘陵区西部的官山林场退耕后栽植的刺槐林地、撂荒草地为对象,选取退耕年限为10、25 a的林、草地,采用湿筛法测定各样地0~30 cm土壤的水稳性团聚体组成,比较退耕还林、还草和退耕年限(10、25 a)对土壤水稳性团聚体平均质量直径(MWD)和分形维数(D)的影响.结果表明:退耕10 a的林地0~30 cm土层水稳性大团聚体含量(R0.25)、MWD和D分别为57.60%、1.91 mm和2.73;退耕25 a的林地分别为60.17%、1.88 mm和2.74;退耕10 a的草地分别为59.89%、1.82 mm和2.74;退耕25 a的草地分别为72.69%、2.71 mm和2.61.进一步分析证明,随着退耕年限的增加,土壤团聚性增强;但林草地的变化存在差异:恢复10 a阶段,土壤团聚性林地尚优于草地,25 a后草地优于林地.各样地土壤的SOC含量与R0.25呈显著正相关关系(p<0.01),与D呈显著负相关关系(p<0.05).退耕类型和退耕年限对土壤团聚性有显著影响. | 陈文媛 徐学选 华瑞 丁康 Shahmir Ali Kalhoro 杜峰 | 2017 | 环境科学学报2017，37，4： | 15 |
| 2 | 长武塬边坡不同植被下土壤团聚体及入渗特征显示文摘黄土塬塬坡的水土流失一直是一个重要热点问题而得到广泛关注。本文以长武塬边坡的刺槐、侧柏和草地3种植被类型为研究对象,于2016年5月测定了3类样地0~30 cm土壤的水稳性团聚体组成、有机碳含量(SOC)及土壤稳定入渗率(SIR)等土壤物理性质,探讨不同植被类型下土壤团聚体和入渗特征的差异性。结果表明:刺槐林地表层0~30 cm土壤水稳性团聚体的平均质量直径(MWD)、分形维数(D)、SOC及SIR的测定结果为:2.63 mm、2.60、5.62 g/kg和10.40 mm/min;侧柏林地分别为3.67 mm、2.60、4.87 g/kg和5.41 mm/min;草地分别为2.44 mm、2.58、6.07 g/kg和12.45 mm/min。结果表明:草地和刺槐林地的土壤结构性状相对优良,SOC高且入渗能力强,有利于长武塬边坡地区的水土保持,侧柏林地虽具有一定的大团聚体塑造能力,但其土壤SOC和入渗能力相对较低,不利于降水的就地入渗。因此,建议适度种植常绿性(侧柏)树种,合理配置该地区退耕还林还草植被类型。 | 丁康 徐学选 陈文媛 Shahmir Ali Kalhoro | 2017 | 北京林业大学学报2017，39，12： | 12 |
| 3 | Residual effects of tobacco biochar along with different fixing agents on stabilization of trace elements in multi-metal contaminated soils显示文摘The residual effect of tobacco biochar(TB≥500°C)mono and co-application with Cahydroxide(CH),Ca-bentonite(CB)and natural zeolite(NZ)on the bio-availability of trace elements TE(s)in alkaline soils has not been deeply studied yet.A pot study that had earlier been investigated TB mono and blended with CH,CB and NZ on the immobilization of Pb,Cu Cd,and Zn by Chinese cabbage.Maize crop in the rotation was selected as test plant to assess the residual impact of amendments on stabilization of Pb,Cu Cd,and Zn in mine polluted(M-P),smelter heavily and low polluted(S-HP and S-LP,respectively)soils.The obtained results showed that stabilization of Pb,Cd,Cu and Zn reached 63.84% with TB+CB,61.19% with TB+CH,83.31% with TB+CH and 35.27% with TB+CH for M-P soil,36.46% with TB+NZ,38.46% with TB+NZ,19.40% with TB+CH and 62.43% with TB+CH for S-LP soil,52.94%TB+NZ,57.65% with TB+NZ,52.94% with TB+NZ,and 28.44% with TB+CH for S-LP soil.Conversely,TB+CH and TB alone had mobilized Pb and Zn up to19.29% and 34.96% in M-P soil.The mobility of Zn reached 8.38% with TB+CB and 66.03% with TB for S-HP and S-LP soils.The uptake and accumulation of Pb,Cd,Cu and Zn in shoot and root were reduced in three polluted soils.Overall,the combination of TB along with CH,CB and NZ has been proven to be effective in Pb,Cd,Cu and Zn polluted mine/smelter soils restoration. | Altaf Hussain Lahori Monika Mierzwa-Hersztek Muhammad Rashid Shahmir Ali Kalhoro Mehrunisa Memon Zobia Naheed Muneer Ahmed Zengqiang Zhang | 2020 | Journal of Environmental Sciences2020，32，1： | 3 |
| 4 | The processing of NiTi shape memory alloys by equal-channel angular pressing at room temperature 显示文摘 | SHAHMIR H NILI-AHMADABADI M MANSOURI-ARANI M LANGDON T G | 2013 | Materials Science and Engineering A2013，576，17： | 1 |
| 5 | Evaluating the room temperature ECAP processing of a NiTi alloy via simulation and experiments 显示文摘 | SHAHMIR H NILI-AHMADABADI M MANSOURI-ARANI M KHAJEZADE A LANGDON T G | 2015 | Advanced Engineering Materials2015，17，4： | 1 |
| 6 | Shape memory effect of NiTi alloy processed by equal-channel angular pressing followed by post deformation annealing 显示文摘 | SHAHMIR H NILI-AHMADABADI M LANGDON T G | 2014 | IOP Conference Series: Materials Science and Engineering2014，63，01： | 1 |
| 7 | Annealing behavior and shape memory effect in NiTi alloy processed by equal-channel angular pressing at room temperature 显示文摘 | SHAHMIR H NILI-AHMADABADI M WANG C T JUNG J M KIM H S LANGDON T G | 2015 | Materials Science and Engineering A2015，629，： | 1 |
| 8 | Heat treatment effect on the microstructure, tensile properties and dry sliding wear behavior of A356–10%B 4 C cast composites显示文摘 | H.R. Lashgari Sh. Zangeneh H. Shahmir M. Saghafi M. Emamy | 2010 | Materials and Design2010，，： | 1 |
| 9 | Quantitative assessment of core/penumbra mismatch in acute stroke:CT and MR perfusion imaging are strongly correlated when sufficient brain volume is imaged显示文摘 | Pamela WS Elizabeth RB Shahmir K | 2008 | Stroke2008，39，： | 1 |
| 10 | Numerical analysis of a single row of coolant jets injected into a heated crossflow 显示文摘 | BAZDIDI-TEHRANI F SHAHMIR A HAGHPARAST- KASHANI A | 2004 | Journal of Computational and Applied Mathematics2004，168，1： | 1 |
| 11 | Numerical analysis of a single row of coolant jets injected into a heated cross flow显示文摘 | Bazdidi-Tehrani F Shahmir A Haghparast-Kashani A | 2004 | Journal of Computational and Applied Mathematics2004，，168： | 1 |
| 12 | Numerical analysis of a single row of coolant jets injected into a heated crossflow 显示文摘 | Bazdidi-Tehrani F Shahmir A Haghparast-Kashani A | 2004 | Journal of Computational and Applied Mathematics2004，168，： | 1 |
| 13 | Dialytic nutrition:provision of amino acids in dialysate during hemodialysis显示文摘 | Chazot C Shahmir E Matias B | | 0，，6： | 1 |
| 14 | Uncertain network data envelopment analysis with undesirable outputs to evaluate the efficiency of electricity power production and dist- ribution processes 显示文摘 | KHALILI-DAMGHANI K SHAHMIR Z | 2015 | Computers & Industrial Engineering2015，88，1： | 1 |
| 15 | The evaluation/application of Hydrus-2D model for simulating macro-pores flow in loess soil显示文摘Soil hydraulic properties were mainly governed by soil structures especially when the structures is full of the connected soil macro-pores.Therefore,the good hydrological models need to be well documented for revealing the process of soil water movement affected by soil medium.The Hydrus-2D model with double domain was recommended in simulating water movement in a heterogeneous medium of soil.To evaluate the performance of the double domain Hydrus-2D model in loess soil,the dynamic of soil wetting front movement in differential loess soil columns under the constant water head were observed and the processes was simulated by Hydrus-2D model under conditions of different soil properties.The results indicated that the Hydrus-2D model was quite good in simulation of loess soil water movements,and the relative errors of simulation results are less than 15%,MRE less than 5%,and R^(2)>0.9.The results provided the appropriate infiltration parameters of loess soil. | Xuexuan Xu Shahmir Ali Kalhoro Wenyuan Chen Sajjad Raza | 2017 | International Soil and Water Conservation Research2017，5，3： | 0 |
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