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| 1 | 放牧强度对内蒙古半干旱草原地气间能量和物质交换的影响显示文摘利用涡度相关技术,于2006年7月27日至8月10日在内蒙古半干旱草原三种放牧强度的下垫面进行微气象观测。本文分析了放牧强度对内蒙古半干旱草原地气间能量和物质交换的影响,发现:(1)放牧降低植被覆盖率,使地表反射率增大。(2)放牧使潜热通量减小。而放牧强度最大的锡林河河道潜热通量最大,表明土壤水分状况是半干旱草原地表能量收支的决定性因素。(3)羊草和冬季放牧观测点日平均CO2通量分别为-1.92g·m-2·d-1和0.73g·m-2·d-1,表明放牧可以使草地由CO2的汇转变为源。锡林河河道为CO2的汇,日平均CO2通量-3.35g·m-2·d-1,与羊草比较,锡林河河道吸收CO2更多,表明土壤湿度是影响半干旱草原CO2通量交换的重要因素。(4)放牧通过减小叶面积指数,减弱植被的光合作用能力。 | 王雷 刘辉志 Bettina KETZER David SCHAFFRATH Christian BERNHOFER | 2009 | 大气科学2009，33，6： | 10 |
| 2 | 香港历史档案馆是如何控制虫害的显示文摘香港位于北回归线以南,为亚热带气候。四季分明。干燥和寒冷季节从每年的12月份延续至次年2月,1月份的平均气温为16℃,湿度为71%:夏季炎热潮湿,雨水很多,8月份的平均气温为28℃.湿度为81%;每年的6月至9月是台风季节,常常造成洪灾和山崩;春秋季时间很短。总而言之。 | Roswitha Ketzer 紫藤 | 2004 | 机电兵船档案2004，，3： | 4 |
| 3 | Distribution of diagenetic alterations in fluvial, deltaic, and shallow marine sandstones within a sequence stratigraphic framework:Evidence from the Mullaghmore Formation ( Carboniferous), NW Ireland 显示文摘 | Ketzer J M Morad S Evans R et a/ | 2002 | Journal of Sedimentary Research2002，72，6： | 1 |
| 4 | The use of a hook-plate in the management of acremieclavicular injuries:report of ten cases显示文摘 | Faraj AA Ketzer B | 2001 | Acta Orthop Belg2001，67，： | 1 |
| 5 | The impact of diagenesis on the heterogeneity of sandstone reservoirs: A review of the role of depositional facies and sequence stratigraphy显示文摘 | Morad S Khalid A R Ketzer J M | 2010 | AAPG Bulletin2010，94，8： | 1 |
| 6 | The impact of diagenesis on the heterogeneity of sandstone reservoirs : A review of the role of depositional facies and sequence stratigraphy 显示文摘 | Morad S Khalid Ramadan Ketzer J M | 2010 | AAPG Bulletin2010，94，8： | 1 |
| 7 | The impact of diagenesis on the heterogeneity of sandstone reservoirs: A review of the role of depositional facies and sequence stratigraphy 显示文摘 | Morad S A1-Ramadan K Ketzer J M | 2010 | AAPG Bulletin2010，94，8： | 1 |
| 8 | The impact of diagenesis on the heterogeneity of sandstone reservoir:A review of the role of depositional facies and sequence stratigraphy显示文摘 | Morad S Al-Ramadan K Ketzer J M | 2010 | AAPG Bulletin2010，94，8： | 1 |
| 9 | Marine natural products显示文摘 | Blunt JW Copp BR Ketzers RA | 2014 | Natprod rep2014，31，2： | 1 |
| 10 | Marine natural products显示文摘 | Blunt JW Copp BR Ketzers RA | 2012 | Natprod rep2012，29，2： | 1 |
| 11 | Predictive distribution of shallow marine,low-porosity (pseudomatrix-rich) sandstones in a sequence stratigraphic framework-example from the Ferron sandstone,Upper Cretaceous,USA显示文摘 | Ketzer J M Morad S | 2006 | Marine and Petroleum Geology2006，23，： | 1 |
| 12 | Distribution of diage- netic alterations in fluvial, deltaic, and shallow marine sand- stones within a sequence stratigraphic framework: Evidence from the Mullaghmore Formation(Carboniferous), NW Ireland 显示文摘 | Ketzer J M Morad S Evans R | 2002 | Journal of Sedimentary Research2002，72，6： | 1 |
| 13 | The impact of diagenesis on the heterogeneity of sandstone reservoirs; a review of the role of depositional facies and sequence stratigraphy显示文摘 | Morad S A1 Ramadan K Ketzer J M | 2010 | AAPG Bulletin2010，94，8： | 1 |
| 14 | Sequence stratigraphic distribution of diagenetic alterations in coal-bearing, paralic sandstones : Evidence from the Rio Bonito Formation ( early Permian) , southern Brazil显示文摘 | Marcelo Ketzer J Michael Holz Morad S | 2003 | Sedimentology2003，50，： | 1 |
| 15 | The impact of diagenesis on the heterogeneity of sandstone reservoirs:A review of the role of depositional facies and sequence stratigraphy显示文摘 | Morad S Al-Ramadan K Ketzer J M | 2010 | AAPG Bulletin2010，94，8： | 1 |
| 16 | Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: Implications for mass transfer in sedimentary basins显示文摘 | Morad S Ketzer J M De Ros F | 2000 | Sedimentology2000，47，： | 1 |
| 17 | Spatial and temporal dis tribution of diagenetic alterations in siliciclastic rocks: Impli cations for mass transfer in sedimentary basins显示文摘 | Morad S Ketzer JM De Ros L F | 2000 | Sedimen tology2000，47，： | 1 |
| 18 | Spatial and temporal distribution of etic alterations in siliciclastic rocks: implications for mass transfer in sedimentary basins显示文摘 | Morad S Ketzer J M De Ros L F | 2000 | Sedimentology2000，47，： | 1 |
| 19 | Characteristics of Momentum and Heat Transfer over Semiarid Grasslands with Different Grazing Intensities in Inner Mongolia,China显示文摘The drag coefficient (C d) and heat transfer coefficient (C h) with the bulk transfer scheme are usually used to calculate the momentum and heat fluxes in meteorological models.The aerodynamic roughness length (z 0m) and thermal roughness length (z 0h) are two crucial parameters for bulk transfer equations.To improve the meteorological models,the seasonal and interannual variations of z 0m,z 0h,coefficient kB 1,C d,and C h were investigated based on eddy covariance data over different grazed semiarid grasslands of Inner Mongolia during the growing seasons (May to September) from 2005 to 2008.For an ungrazed Leymus chinensis grassland (ungrazed since 1979),z 0m and z 0h had significant seasonal and interannual variations.z 0m was affected by the amount and distribution of rainfall.kB 1 exhibited a relatively negative variation compared with z 0h,which indicates that the seasonal variation of z 0h cannot be described by kB 1.To parameterize z 0m and z 0h,the linear regressions between ln(z 0m),ln(z 0h),and the leaf area index (LAI) were performed with R 2 =0.71 and 0.83.The monthly average kB 1 was found to decrease linearly with LAI.The four-year averaged values of C d and C h were 4.5×10 3 and 3.9×10 3,respectively.The monthly average C d only varied by 8% while the variation of C h was 18%,which reflects the different impacts of dead vegetation on momentum and heat transfer at this natural grassland.Moreover,with the removal of vegetation cover,grazing intensities reduced z 0m,z 0h,C d,and C h. | WANG Lei LIU Hui-Zhi Bettina KETZER FENG Jian-Wu Christian BERNHOFER | 2011 | Atmospheric and Oceanic Science Letters2011，4，5： | 1 |
| 20 | Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks : Implications for mass transfer in sedimentary basins 显示文摘 | Morad S Ketzer J M De Ros L F | 2000 | Sedimental2000，47，： | 1 |
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