摩梭人的婚姻家庭形态与农业生态的关系--以永宁八珠村为例

在农村社区中，家庭作为一个重要的生产、消费单位，在进行生产劳动和一系列消费活动过程中，必然对社区周围的生态环境产生影响。因此，这一过程也是村民以家庭为单位同社区生态环境发生关系的过程。但是，不同类型的家庭所进行的生产和消费活动的过程及结果都不一样，对社区农业生态环境的影响也不一样。本文试图以丽江地区永宁乡八珠村为例探讨不同的婚姻家庭类型与农业生态环境的关系。     

印度咖啡产业发展现状

咖啡与茶叶、可可并称为世界三大饮料,就每年的消费量而言,它比可可大两倍,比茶叶大三倍。近年,印度咖啡产业在政府的资助下,发展迅速,至今产量已位居亚洲第二,并占全亚洲25%的产量。本文分析了印度咖啡产区分布、出口以及国内消费情况,总结了近年来,印度政府采取各种措施计划旨在提高咖啡业生产力,提高咖啡产品产量和质量,在全球市场更好推销印度咖啡。     

印度马铃薯研究

印度是世界上马铃薯生产、消费第二大国家,马铃薯的研发与生产在亚洲属于较高的水平。分析、了解其对马铃薯研究体系、方法及策略,以期为提高我国马铃薯研究效率提供参考。     

Equatorial currents in the Western Indian ocean

Measurements were made in the equatorial Indian Ocean during spring and summer 1979 from the Somali coast to 62 degrees E in the interior of the western basin. The detailed vertical profiles of horizontal current show that the energetic dominance throughout the region of variability was on vertical scales of several hundreds of meters, confined to within a few degrees of the equator, as observed in 1976. The near-surface equatorial circulation responded directly to variations in the wind field, and satellite-tracked drifter buoys showed the equatorial surface jet extending across the width of the ocean. This eastward flow is generated by the eastward winds that appear in the interval between the northeast and southwest monsoons. The zonal velocity fluctuations extended in a consistent pattern over the observation region. The time and meridional scales of the variability were similar to those observed in 1976, suggesting that the velocity field is dominated by long-term, equatorially trapped motions with long zonal scales.     

An equatorial jet in the Indian ocean

At the surface of the Indian Ocean along the equator a narrow, jet-like current flows eastward at high speed during both transition periods between the two monsoons. The formation of the jet is accompanied by thermocline uplifting at the western origin of the jet and by sinking at its eastern terminus. This demonstrates that a time-variable current can have profound effects in changing the mass structure in the ocean.