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中国科学院亚热带农业生态研究所苏以荣研究员团队在我国东部四个水稻分布气候区(中温带-黑土、暖温带-潮土、亚热带-红壤和热带-砖红壤)采用配对采样原则,随机采集了240对稻田和旱地表层土壤。分析发现,四个区域稻田土壤有机碳固持效率比相邻旱地土壤高39%~127%,且以温暖区(亚热带和热带)差异大于寒冷区(中温带和暖温带)。进一步随机选择40对土壤,基于生物标识物木质素和氨基糖分析,量化植物残体和微生...
A major global cooling event that occurred 4,200 years ago may have led to the evolution of new rice varieties and the spread of rice into both northern and southern Asia, an international team of res...
A numerous studies have been done on climate change at regional, national and global levels. Several climate models have predicted the global scenarios for climate in different parts of the world. How...
Recent information campaigns of media and the ongoing substantive discussions of experts have been more and more devoted to the climate change issue and its impacts that could affect our future and th...
2010年12月17日上午,北京市农林科学院蔬菜中心主任许勇与荷兰ASTEC公司新事业部主管Frederick Schreurs在北京市农林科学院蔬菜中心种质改良实验楼签署了双方种子研究与技术合作项目协议,双方同时还签署了有关技术保密协议。ASTEC是一家在全球范围内从事先进种子技术及其相关技术服务与设备等业务的公司。为推动国外先进技术在我国发展、应用,双方在2008年曾经签署了合作意向书,经过两...
This paper looks at the emerging presence of China in Africa along the parallel presence of U.S for raw materials and energy. While China’s presence has been perceived in the west as colonizing Africa...
The effects of climate change on hydrological regimes have become a priority area for water and catchment management strategies. The terrestrial hydrology driven by monsoon rainfall plays a crucial ro...
The paper provides a comprehensive review of global croplands and their water use. Global cropland (irrigated plus rainfed) areas increased from 265 Mha in year 1700 to about 1.5 Mha in year 2000. Maj...
This paper deals with the correlation between global solar radiation and sunshine duration for the south-eastern part of Romania. Daily data on sunshine duration (n) and global solar radiation (Rs) fr...
An assessment test of phytosanitary treatments on 7 wheat species was carried out in Auvergne (France) through a global method - the thesigraphy. This analysis consists of making and decoding images o...
May 21, 2007,ROCHESTER, N.Y.—The growing interconnections of a flattening world bring both opportunities and threats that require collaboration across borders and disciplines, Shirley Ann Jackson told...

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