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| 1 | Effect of Reclamation Time and Land Use on Soil Properties in Changjiang River Estuary,China显示文摘The objective of this study is to analyze soil physical and chemical properties,soil comprehensive functions and impact factors after different years of reclamation.Based on the survey data taken from 216 soil sampling points in the Fengxian Reclamation Area of the Changjiang (Yangtze) River Estuary,China in April 2009 and remotely sensed TM data in 2006,while by virtue of multivariate analysis of variance (MANOVA),geo-statistical analysis (GA),prin-cipal component analysis (PCA) and canonical correspondence analysis (CCA),it was concluded that:1) With the in-crease in reclamation time,soil moisture,soil salinity,soil electric conductivity and soil particle size tended to decline,yet soil organic matter tended to increase.Soil available phosphorous tended to increase in the early reclamation period,yet it tended to decline after about 49 years of reclamation.Soil nitrate nitrogen,soil ammonia nitrogen and pH changed slightly in different reclamation years.Soil physical and chemical properties reached a steady state after about 30 years of reclamation.2) According to the results of PCA analysis,the weighted value (0.97 in total) that represents soil nutrient factors (soil nitrate nitrogen,soil organic matter,soil available phosphorous,soil ammonia nitrogen,pH and soil particle size) were higher than the weighted value (0.48 in total) of soil limiting factors (soil salinity,soil elec-tric conductivity and soil moisture).The higher the F value is,the better the soil quality is.3) Different land use types play different roles in the soil function maturity process,with farmlands providing the best contribution.4) Soil physi-cal and chemical properties in the reclamation area were mainly influenced by reclamation time,and then by land use types.The correlation (0.1905) of the composite index of soil function (F) with reclamation time was greater than that with land use types (-0.1161). | SUN Yongguang LI Xiuzhen ülo MANDER HE Yanlong JIA Yue MA Zhigang GUO Wenyong XIN Zaijun | 2011 | Chinese Geographical Science2011，21，4： | 17 |
| 2 | Effects of the nitrification inhibitor nitrapyrin and tillage practices on yield-scaled nitrous oxide emission from a maize field in Iran显示文摘Nitrification inhibitors can effectively decrease nitrification rates and nitrous oxide(N_(2)O)emission while increasing crop yield under certain conditions.However,there is no information available on the effects of nitrification inhibitors and tillage practices on N_(2)O emissions from maize cropping in Iran.To study how tillage practices and nitrapyrin(a nitrification inhibitor)affect N_(2)O emission,a split factorial experiment using a completely randomized block design with three replications was carried out in Northeast Iran,which has a cold semiarid climate.Two main plots were created with conventional tillage and minimum tillage levels,and two nitrogen(N)fertilizer(urea)management systems(with and without nitrapyrin application)were created as subplots.Tillage level did not have any significant effect on soil ammonium(NH_(4)^(+))and nitrate(NO_(3)^(-))concentrations,cumulative amount and yield-scaled N_(2)O emission,and aboveground biomass of maize,whereas nitrapyrin application showed significant effect.Nitrapyrin application significantly reduced the cumulative amount of N_(2)O emission by 41%and 32%in conventional tillage and minimum tillage practices,respectively.A reduction in soil NO_(3)^(-)concentration by nitrapyrin was also observed.The average yield-scaled N_(2)O emission was 13.6 g N_(2)O-N kg^(-1)N uptake in both tillage systems without nitrapyrin application and was significantly reduced to 7.9 and 8.2 g N_(2)O-N kg^(-1)N uptake upon the application of nitrapyrin in minimum tillage and conventional tillage practices,respectively.Additionally,nitrapyrin application increased maize biomass yield by 4%and 13%in the minimum tillage and conventional tillage systems,respectively.Our results indicate that nitrapyrin has a potential role in reducing N_(2)O emission from agricultural systems where urea fertilizers are broadcasted,which is common in Iran due to the practice of traditional farming. | Azam BORZOUEI Ulo MANDER Alar TEEMUSK Alberto SANZ-COBENA Mohammad ZAMAN Dong-Gill KIM Christoph MÜLLER Ali Askary KELESTANIE Parvaneh SAYYAD AMIN Ebrahim MOGHISEH Khadim DAWAR Ana Gabriela PÉREZ-CASTILLO | 2021 | Pedosphere2021，31，2： | 4 |
| 3 | Nutrient flows and management of a small watershed显示文摘 | Valdo Kuusemets ülo Mander | 2002 | Landscape Ecology2002，，1： | 1 |
| 4 | Efficiency and dimensioning of riparian buffer zones in agricultural catchments显示文摘 | Manderülo Kuusemets V L?hmus K | 1997 | Ecological Engineering1997，8，： | 1 |
| 5 | The CIMT-monitoring panel: a two-step approach to harmonize the enumeration of antigen-specific CD8 + T lymphocytes by structural and functional assays显示文摘 | C. M. Britten C. Gouttefangeas M. J. P. Welters G. Pawelec S. Koch C. Ottensmeier A. Mander S. Walter A. Paschen J. Müller-Berghaus I. Haas A. Mackensen T. K?llgaard P. Straten M. Schmitt K. Giannopoulos R. Maier H. Veelken C. Bertinetti A. Konur C. Huber | 2008 | Cancer Immunology Immunotherapy2008，，3： | 1 |
| 6 | Purification processes, ecological functions, planning and design of riparian buffer zones in agricultural watersheds显示文摘 | MANDER ü HAYAKAWAY KUUSEMETS V | 2005 | Ecological Engineering2005，24，5： | 1 |
| 7 | Estimation of Landscape Potential for Construction of Surface-Flow Wetlands for Wastewater Treatment in Estonia显示文摘 | Merje Lesta T?nu Mauring ülo Mander | 2007 | Environmental Management2007，，2： | 1 |
| 8 | Scale dependence of landscape metrics and their indicatory value for nutrient and organic matter losses from catchments显示文摘 | Uuemaa E Roosaare J Mander ü | 2005 | Ecological Indicators2005，5，4： | 1 |
| 9 | Ecotechnological measures to control nutrient losses from catchments 显示文摘 | Kuusemets V Mander ü | 1999 | Water Science and Technology1999，40，10： | 1 |
| 10 | Rainwater runoff quantity and quality performance from a greenroof:the effects of short-term events显示文摘 | Teemusk A Manderü | 2007 | Ecological Engineering2007，30，3： | 1 |
| 11 | Efficiency and dimensioning of riparian buffer zones in agricultural catchments显示文摘 | ülo Mander Valdo Kuusemets Krista L?hmus T?nu Mauring | 1997 | Ecological Engineering1997，，4： | 1 |
| 12 | Wetlands, carbon, and climate change显示文摘 | William J. Mitsch Blanca Bernal Amanda M. Nahlik ülo Mander Li Zhang Christopher J. Anderson Sven E. J?rgensen Hans Brix | 2013 | Landscape Ecology2013，，4： | 1 |
| 13 | The effect of pre-aeration on the purification processes in the long-term performance of a horizontal subsurface flow coustmcted wetland显示文摘 | Noorvee A P(o)ldvere E Manderü | 2007 | Science of Total Environment2007，380，： | 1 |
| 14 | Holistic Landscape Ecology in Action显示文摘 | ülo Mander Naveh Zev | 2000 | Landscape Uban Planning2000，，5： | 1 |
| 15 | Landscape metrics asindicators of river water quality at catchment scale显示文摘 | Uuemaa E Roosaare J Manderü | 2007 | NordicHydrology2007，38，2： | 1 |
| 16 | Effects of land use intensity on soil nutrient distribution after reclamation in an estuary landscape显示文摘 | Xiuzhen Li Yongguang Sun ülo Mander Yanlong He | 2013 | Landscape Ecology2013，，4： | 1 |
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