|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 中国东北松嫩平原1990–2015年的农田环境变化特征分析(英文)显示文摘Quantitative characterization of environmental characteristics of cropland(ECC)plays an important role in maintaining sustainable development of agricultural systems and ensuring regional food security. In this study, the changes in ECC over the Songnen Plain, a major grain crops production region in Northeast China, were investigated for the period 1990–2015. The results revealed significant changes in climate conditions, soil physical properties and cropland use patterns with socioeconomic activities. Trends in climate parameters showed increasing temperature(+0.49°C/decade, p < 0.05) and decreasing wind speed(–0.3 m/s/decade, p < 0.01) for the growing season, while sunshine hours and precipitation exhibited non-significant trends. Four topsoil parameters including soil organic carbon(SOC), clay, bulk density and pH, indicated deteriorating soil conditions across most of the croplands, although some do exhibited slight improvement. The changing amplitude for each of the four above parameters ranged within –0.052 to 0.029 kg C/kg, –0.38 to 0.30,–0.60 to 0.39 g/cm^3, –3.29 to 2.34, respectively. Crop production significantly increased(44.0 million tons) with increasing sown area of croplands(~2.5 million ha) and fertilizer application(~2.5 million tons). The study reveals the dynamics of ECC in the Songnen Plain with intensive cultivation from 1990 to 2015. Population growth, economic development, and policy reform are shown to strongly influence the spatiotemporal changes in cropland characteristics.The study potentially provides valuable scientific information to support sustainable agroecosystem management in the context of global climate change and national socioeconomic development. | 张远 臧淑英 孙丽 阎炳和 杨天鹏 闫文佳 MEADOWS E Michael WANG Cuizhen QI Jiaguo | 2019 | Journal of Geographical Sciences2019，0，5： | 4 |
| 2 | Location modeling utilizing maximum service distance criteria显示文摘 | CHURCH R MEADOWS M E | 1979 | Geographical Analysis1979，11，： | 1 |
| 3 | A Rheological Study of the Order-disorder Conformational Transition of XanthanGum 显示文摘 | Pelletier E Viebke C Meadows J | 2001 | Biopolymers2001，，5： | 1 |
| 4 | Protein kinases C and D mediate agonist-dependent cardiac hypertrophy through nuclear export of histone deacetylase 5显示文摘 | VEGA R B HARRISON B C MEADOWS E | 2004 | Mol Cell Biol2004，24，： | 1 |
| 5 | A num- erical rating system for crown classes of southern hardwoods 显示文摘 | Meadows J S Burkhardt E C Johnson R L | 2001 | Southern Journal of Applied Forestry2001，25，4： | 1 |
| 6 | Information needs of informal caregivers of older adults with chronic health Conditions 显示文摘 | Washington K T Meadows S E Elliott S G | 2011 | Patient Education and Counseling2011，83，1： | 1 |
| 7 | Psychosocial treatments for posttraumatic stress disorder:a critical review显示文摘 | Foa E B Meadows E A | 1997 | Annu Rev Psychol1997，48，： | 1 |
| 8 | Verification of Wave Measurement Systems 显示文摘 | Luther M E Meadows G Buckley E | 2015 | Marine Technology Society Journal2015，47，5： | 1 |
| 9 | Psychosocial treatments for post-traumatic stress disorder:a critical review显示文摘 | Foa E B Meadows E A | 1997 | Annual Review Of Psycho1ogy1997，，48： | 1 |
| 10 | CAL-101,a pi 10 delta selective phosphatidylinositol-3-kinaseinhibitor for the treatment of B-cell malignancies, inhibitsPI3K signaling and cellular viability 显示文摘 | Lannutti B J Meadows S A Herman S E | 2011 | Blood2011，117，2： | 1 |
| 11 | Mass distributions in mono - energetic - neutron - in-duced fission of 258U显示文摘 | Nagy S F lynn K F Gindler J E Meadows J W | 1978 | Hiys RevC1978，17，： | 1 |
| 12 | Expression and localization of prostaglandin E synthase isoforms in human fetal membranes in term and preterm labor 显示文摘 | Meadows J W Eis A L Brockman D E | 2003 | J Clin Endocrinol Metab2003，88，1： | 1 |
| 13 | Structure and mechanical properties of pyrolytic carbon produced by fluidized bed chemical vapor deposition显示文摘 | Lopez-Honorato E Meadows P J Xiao P | 2008 | Nuclear Engineering and Design2008，238，1： | 1 |
| 14 | Solution rheology ofK-carrageenan in the ordered and disordered conformations 显示文摘 | Pelletier E Viebke C Meadows J | 2001 | Biomacromolecules2001，2，： | 1 |
| 15 | Characterization of the anisotropy of pyrolytic carbon coatings and the graphite matrix in fuel compacts by two modulator generalized ellipsometry and selected area electron diffraction显示文摘 | Lopez-Honorato E Boshoven J Meadows P J | 2012 | Carbon2012，50，2： | 1 |
| 16 | Fluidized bed chemicalvapor deposition of pyrolytic carbon-I : Effect of depositionconditions on microstructure 显示文摘 | L6pez-Honorato E Meadows PJ Xiao P | 2009 | Carbon2009，47，2： | 1 |
| 17 | Fluidized bed chemicalvapor deposition of pyrolytic carbon-II: Effect of depositionconditions on anisotropy 显示文摘 | Meadows PJ L6pez-Honorato E Xiao P | 2009 | Nuclear Engineering and Design2009，47，1： | 1 |
| 18 | Fluidized bed chemical vapor deposition ( I ): Effect of deposition conditions on microstructttre显示文摘 | Lopez-Honorato E Meadows P J Xiao P | 2009 | Carbon2009，47，2： | 1 |
| 19 | Psychosocial Treatments For Posttroumatic Strers Disorder显示文摘 | Meadows E A | 1997 | A Crirical Review Annual Review Psychology1997，，48： | 1 |
| 20 | Multicomponent batch distillation calulations on a digital computers 显示文摘 | Meadows E L | 1963 | Chem Eng Prog Symp Ser1963，59，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员