|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 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 | Exploring polyamines:Functions in embryo/fetal development显示文摘Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supported from diet. Polyamines as the key compounds play essential role in cell proliferation, growth and differentiation. They also exert significant effects on embryonic development,implantation, embryonic diapause, placentation, angiogensis and fetal development. This review paper summarizes the functions of polyamines and embryo/fetus development and its regulatory mechanism which should help to provide some evidences for clinic. | Tarique Hussain Bi'e Tan Wenkai Ren Najma Rahu Dildar Hussain Kalhoro Yulong Yin | 2017 | Animal Nutrition2017，，1： | 6 |
| 4 | 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 |
| 5 | H3N2亚型犬流感病毒与伪中间葡萄球菌的体外共感染研究显示文摘为了研究犬流感病毒(CIV)与伪中间葡萄球菌(Sp)对犬肾细胞(MDCK)的共感染作用,利用犬流感病毒、伪中间葡萄球菌和犬肾细胞,建立并优化了病毒-细菌体外细胞共感染模型。试验分4组:病毒单独感染组(CIV)、细菌单独感染组(Sp)、感染病毒后第12小时再感染细菌组(CIV/Sp)及空白对照组(C)。结果显示,病毒感染后第24小时,CIV/Sp组的细胞毒性为39.7%,极显著高于CIV组和Sp组(P<0.001);CIV/Sp组病毒RNA载量显著低于CIV组(P<0.001)。细菌黏附和侵袭试验表明,细菌感染后第4小时,CIV/Sp的黏附和侵袭量极显著高于Sp组(P<0.001),侵袭量升高20倍。细菌感染后第6小时,CIV/Sp组IL-6、TNF-α的表达量均极显著高于其他3组(P<0.001)。研究结果表明,犬流感病毒的预感染增强了伪中间葡萄球菌对体外培养细胞的继发感染。 | 梁姗 谢星 高珊珊 Dildar Hussain Kalhoro 王永山 刘永杰 | 2016 | 中国兽医科学2016，46，12： | 3 |
| 6 | Application of a Delay-Difference Model for the Stock Assessment of Southern Atlantic Albacore(Thunnus alalunga)显示文摘Delay-difference models are intermediate between simple surplus-production models and complicated age-structured models. Such intermediate models are more efficient and require less data than age-structured models. In this study, a delay-difference model was applied to fit catch and catch per unit effort(CPUE) data(1975–2011) of the southern Atlantic albacore(Thunnus alalunga) stock. The proposed delay-difference model captures annual fluctuations in predicted CPUE data better than Fox model. In a Monte Carlo simulation, white noises(CVs) were superimposed on the observed CPUE data at four levels. Relative estimate error was then calculated to compare the estimated results with the true values of parameters α and β in Ricker stock-recruitment model and the catchability coefficient q. α is more sensitive to CV than β and q. We also calculated an 80% percentile confidence interval of the maximum sustainable yield(MSY, 21756 t to 23408 t; median 22490 t) with the delay-difference model. The yield of the southern Atlantic albacore stock in 2011 was 24122 t, and the estimated ratios of catch against MSY for the past seven years were approximately 1.0. We suggest that care should be taken to protect the albacore fishery in the southern Atlantic Ocean. The proposed delay-difference model provides a good fit to the data of southern Atlantic albacore stock and may be a useful choice for the assessment of regional albacore stock. | ZHANG Kui LIU Qun KALHORO Muhsan Ali | 2015 | Journal of Ocean University of China2015，14，3： | 2 |
| 7 | 不锈钢等离子体性能的激光诱导击穿光谱法研究显示文摘研究了由Nd:YAG激光的一级及二级谐波(SHG)产生的不锈钢等离子体参数的测量方法。根据已知的谱线进行光谱分析,利用Boltzmann法估算出了激发温度,而等离子体的电子密度是从谱线的Stark展宽剖面估算出来的。在常压下研究了等离子体的空间及时间演化过程,结果发现谱线的积分光强及积分宽度随着时间的延迟而降低。除了逆韧致辐射吸收的估算,同时研究了激光辐照度和波长对等离子体参数的影响。 | SHAIKH Nek M KALHORO M S BAIG M A | 2009 | 冶金分析2009，29，7： | 2 |
| 8 | Maximum sustainable yield of Greater lizardfish Saurida tumbil fishery in Pakistan using the CEDA and ASPIC packages显示文摘The catch and effort data analysis(CEDA) and ASPIC(a stock assessment production model incorporating covariates) computer software packages were used to estimate the maximum sustainable yield(MSY) from the catch and effort data of Greater lizardfish Saurida tumbil fishery of Pakistan from 1986 to 2009. In CEDA three surplus production models of Fox, Schaefer and Pella-Tomlinson were used. Here initial proportion(IP) of 0.5 was used because the starting catch was roughly 50% of the maximum catch. With IP = 0.5, the estimated MSY from Fox model were 20.59 mt and 38.16 mt for normal and log-normal error assumptions, while the MSY from Schaefer and Pella-Tomlinson were 60.40, 60.40 and 60.40 mt, for normal, log-normal and gamma error assumptions respectively. The MSY values from Schaefer and Pella-Tomlinson models of three error assumptions were the same. The R2 values from those three models were above 0.6. When IP = 0.5, the MSY values estimated from ASPIC from Fox were 132 mt, and from logistic model were 69.4 mt, with R2 value above 0.8. Therefore we suggest the MSY of S. tumbil fishery from Pakistan to be 60–70 mt, which is higher than the latest catch, thus we would recommend that the fishing efforts for this fishery may be kept at the current level. | KALHORO Muhsan Ali LIU Qun MEMON Khadim Hussain WARYANI Baradi SOOMRO Shamsher Hyder | 2015 | Acta Oceanologica Sinica2015，34，2： | 2 |
| 9 | Diapir structure and its constraint on gas hydrate accumulation in the Makran accretionary prism, offshore Pakistan显示文摘The Makran accretionary prism is located at the junction of the Eurasian Plate,Arabian Plate and Indian Plate and is rich in natural gas hydrate(NGH)resources.It consists of a narrow continental shelf,a broad continental slope,and a deformation front.The continental slope can be further divided into the upper slope,middle slope,and lower slope.There are three types of diapir structure in the accretionary prism,namely mud diapir,mud volcano,and gas chimney.(1)The mud diapirs can be grouped into two types,namely the ones with low arching amplitude and weak-medium activity energy and the ones with high arching amplitude and medium-strong activity energy.The mud diapirs increase from offshore areas towards onshore areas in general,while the ones favorable for the formation of NGH are mainly distributed on the middle slope in the central and western parts of the accretionary prism.(2)The mud volcanoes are mainly concentrated along the anticline ridges in the southern part of the lower slope and the deformation front.(3)The gas chimneys can be grouped into three types,which are located in piggyback basins,active anticline ridges,and inactive anticline ridges,respectively.They are mainly distributed on the middle slope in the central and western parts of the accretionary prism and most of them are accompanied with thrust faults.The gas chimneys located at different tectonic locations started to be active at different time and pierced different horizons.The mud diapirs,mud volcanoes,and gas chimneys and thrust faults serve as the main pathways of gas migration,and thus are the important factors that control the formation,accumulation,and distribution of NGH in the Makran accretionary prism.Mud diapir/gas chimney type hydrate develop in the middle slope,mud volcano type hydrate develop in the southern lower slope and the deformation front,and stepped accretionary prism type hydrate develop on the central and northern lower slope.The middle slope,lower slope and deformation front in the central and western parts of the Makran accretionary prism jointly constitute the NGH prospect area. | Zhen Zhang Gao-wen He Hui-qiang Yao Xi-guang Deng Miao Yu Wei Huang Wei Deng Syed Waseem Haider Naimatullah Sohoo Noor Ahmed Kalhoro | 2020 | China Geology2020，3，4： | 2 |
| 10 | Small angle neutron scattering study of SPBT/PC blends显示文摘 | Gabrys B J Wojciech Z | 2001 | Polymer2001，42，4： | 1 |
| 11 | Spectroscopic study of a lead plasma produced by the 1064 nm,532 nm and 355 nm of a Nd: YAG laser 显示文摘 | SHAIKH N M KALHORO M S HUSSAIN A | 2013 | SpectrochimicaActa Part B : Atomic Spectroscopy2013，88，： | 1 |
| 12 | Ionides a Screening forocular surface disease in the intensive care unit Eye ( Lond)显示文摘 | McHugh J Alexander P Kalhoro A | 2008 | Inten Sive-care Med2008，22，： | 1 |
| 13 | Antihelminthic properties of some indigenous plants显示文摘 | Qamar F Kalhoro M A Badar Y | 1998 | Hamdard Medicus1998，41，1： | 1 |
| 14 | Long-term refractive stability following combined astigmatic keratotomy and phakoemulsification显示文摘 | Avinash Kulkarni Asimina Mataftsi Ash Sharma Ambreen Kalhoro Simon Horgan | 2009 | International Ophthalmology2009，，2： | 1 |
| 15 | Congenital high myopia and central macular atrophy: a report of 3 families 显示文摘 | HULL S KALHORO A MARR J THOMPSON DA HOLDER GE ROBSON AG | 2015 | Eye ( Lond )2015，29，7： | 1 |
| 16 | Estimation of maximum sustainable yield of bombay duck, Harpodon nehereus fishery in Pakistan using the CEDA and ASPIC packages显示文摘 | KALHORO M A LIU Q MEMON K H | 2013 | Pak JZool2013，45，6： | 1 |
| 17 | Screening for ocular sur face disease in the intensive care unit显示文摘 | McHugh J Alexander P Kalhoro A | 2007 | Eye2007，，8： | 1 |
| 18 | Fishery stock assessment of Kiddi shrimp (Parapenaeopsis stylifera) in the Northern Arabian Sea Coast of Pakistan by using surplus production models显示文摘Pakistani marine waters are under an open access regime.Due to poor management and policy implications,blind fishing is continued which may result in ecological as well as economic losses.Thus,it is of utmost importance to estimate fishery resources before harvesting.In this study,catch and effort data,1996-2009,of Kiddi shrimp Parapenaeopsis stylifera fishery from Pakistani marine waters was analyzed by using specialized fishery software in order to know fishery stock status of this commercially important shrimp.Maximum,minimum and average capture production of P.stylifera was observed as 15 912 metric tons(mt)(1997),9 438 mt(2009) and 11 667 mt/a.Two stock assessment tools viz.CEDA(catch and effort data analysis) and ASPIC(a stock production model incorporating covariates) were used to compute MSY(maximum sustainable yield) of this organism.In CEDA,three surplus production models,Fox,Schaefer and Pella-Tomlinson,along with three error assumptions,log,log normal and gamma,were used.For initial proportion(IP) 0.8,the Fox model computed MSY as 6 858 mt(CV=0.204,R^2=0.709) and 7 384 mt(CV=0.149,R^2=0.72) for log and log normal error assumption respectively.Here,gamma error produced minimization failure.Estimated MSY by using Schaefer and Pella-Tomlinson models remained the same for log,log normal and gamma error assumptions i.e.7 083 mt,8 209 mt and 7 242 mt correspondingly.The Schafer results showed highest goodness of fit R^2(0.712) values.ASPIC computed MSY,CV,R^2,F_(MSY)and B_(MSY) parameters for the Fox model as 7 219 mt,0.142,0.872,0.111 and 65 280,while for the Logistic model the computed values remained 7 720 mt,0.148,0.868,0.107 and 72 110 correspondingly.Results obtained have shown that P.stylifera has been overexploited.Immediate steps are needed to conserve this fishery resource for the future and research on other species of commercial importance is urgently needed. | MOHSIN Muhammad 慕永通 MEMON Aamir Mahmood KALHORO Muhammad Talib SHAH Syed Baber Hussainin | 2017 | Chinese Journal of Oceanology and Limnology2017，35，4： | 1 |
| 19 | Identification of genes preferentially expressed by highly virulent piscine Streptococcus agalactiae upon interaction with macrophages显示文摘 | Guo C M Chen R R Kalhoro D H | 2014 | Plo S One2014，9，87： | 1 |
| 20 | A recombinant vesicular stomatitis virus replicon vaccine protects chickens from highly pathogenic avian influenza virus ( H7N1 ) 显示文摘 | 1 Kalhoro NH Veits J Rautenschlein S | 2009 | Vaccine2009，27，8： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员