RESOURCE NEEDS AND LAND STRESS IN RAPTI ZONE,NEPAL *

Regional and village land resource issues and environmental conditions in the Rapti zone, western Nepal are discussed in the context of the Himalaya Environmental Degradation theory (Ives 1987). Ecological stress is indicated in agriculture to forest land ratios, farmland capability, and land use change. Intra-regional differences and specific local conditions indicate the complex dimensions of environmental and development issues in the Rapti zone.     

我国恐龙空间分异原因初探

本文讨论了中国境内先后出现的恐龙动物在古地理位置、分布范围上的变化特点，提出引起中国恐龙空间分异的主要原因是占地理环境的巨大变迁，同时也与占气候、占植物的变化有密切关系。并进一步指出，中国恐龙绝灭的原因应该是突发的灾变。     

PROBLEMS OF THE AQUATIC ENVIRONMENT AND COUNTERMEASURES IN RAPID ECONOMIC DEVELOPMENT IN THE ZHUJIANG RIVER DELTA

ＰＲＯＢＬＥＭＳＯＦＴＨＥＡＱＵＡＴＩＣＥＮＶＩＲＯＮＭＥＮＴＡＮＤＣＯＵＮＴＥＲＭＥＡＳＵＲＥＳＩＮＲＡＰＩＤＥＣＯＮＯＭＩＣＤＥＶＥＬＯＰＭＥＮＴＩＮＴＨＥＺＨＵＪＩＡＮＧＲＩＶＥＲＤＥＬＴＡ￥ＷｅｎＹａｎｍａｏ（温琰茂）；ＣｈｅｎｇＧｕｏｐｅｉ...     

西北地区土壤资源特征及其开发利用与保护

在分析西北地区土壤分布规律的基础上,研究了不同类型区土壤的资源特征及其在开发利用中存在的问题,认为黄土地区土壤土质疏松、粉砂含量高、富含碳酸钙是水土流失的物质基础;干旱区广为分布的荒漠土壤资源的性能低劣、绿洲区水土资源的利用比例失调是造成土地荒漠化、土壤盐渍化的根本原因;而高原土壤的粗骨性、土层浅薄、有效肥力低则加速了草场的退化和沙漠化.提出了西北地区土壤资源的合理利用与生态环境保护相协调的途经,即搞好农田基本建设,采用旱作技术节水和合理用水,扩大林草植被,保护天然草场和林木.并认为西北土壤资源的开发利用要在充分发挥其生产潜力的同时,首先应遵循生态规律,开发与保护并重,防止土壤资源衰竭和破坏.     

麻城1932年6．0级地震区地球物理场与深部环境研究

研究了麻城地区重、磁异常场特征，经反演计算获得了深部结构特征。对重力布格异常利用Ｐａｒｋｅｒ－Ｏｌｄｅｎｂｕｒｇ快速位场反演方法计算出莫霍面的展布，对航磁异常利用对数功率谱法和矩谱法计算出居里面深度。在此基础上，探讨该震区深部蕴震条件。主要结论是：①麻城－团凤断裂带为该区切割较深的主要控震构造；②１９３２年麻城６．０级地震发生在区域重力异常等值线梯度最大处，磁力异常区两局部正异常间的低值带，莫霍面及居里面隆起区边缘；③发震部位有其特定的深部蕴震构造及应力蕴震条件。     

第四纪与环境

目前最大的环境问题是由人类排放CO     

1932年麻城6.0级强震的蕴育环境条件探讨

本文在活断层研究和地震宏观调查的基础上,从现代地壳运动特征及活动断层几何学,运动特征等方面研究了1932年麻城Ms6.0级地震的蕴育环境条件,为预测该区强震的地点和强度提供依据。     

THE PROTECTION OF THE ECOLOGIC ENVIRONMENT OF THE GREEN CORRIDOR IN THE LOWER REACHES OF THE TARIM RIVER

The Green Corridor in the lower reaches of the Tarim River is not only a unique natural landscape in desert but also an important passageway. Nowadays, the ecologic environment of the corridor is getting worse and worse due to man's economic activities and the lack of knowledge of the importance of the environment, which is one of is the three environment problems in Xinjiang. The corridor is in great need of planning and managing.     

黄河上游及源头区生态环境质量综合评价

本文简要介绍了利用遥感和地理信息系统技术进行黄河上游及源头区生态环境质量综合评价中,评价因子的获取及其分值和权值的确定,评价模型的建立及评价等级的划分。评价结果表明,该区环境质量具有垂直分带规律,人类不合理的经济活动是影响环境质量的重要因素。     

BOOK REVIEWS

Books reviewed in this article: Boundary Control and Legal Priniciples . Curtis M. Brown , Walter G. Robillard and Donald A. Wilson . Lost Initiatives: Canada's Forest Industries, Forest Policy, and Forest Conservation . R. Peter Gillis and Thomas R. Roach . The Navajo Atlas: Resources, People, and History of the Dine Bikeyah . James M. Goodman . The City and the Sign . M. Gottdiener AND Alexandros Ph . Lagopoulos , EDS. The Comfortable House: North American Suburban Architecture 1890–1930 . Alan Gowans . Arabic-Islamic Cities. Building and Planning Principles . Besim Salim Hakim . Contemporary Climatology . Ann Henderson -Sellers and Peter J. Robinson . A Trace of Desert Waters . Samuel G. Houghton . Geography, Resources and Environment. Vol. 1: Selected Writings of Gilbert F. White. Vol. 2: Themes from the Work of Gilbert F. White . Robert W. Kates AND Ian Burton , ED. Spatial Dimensions of Unemployment and Underemployment (A Case Study of Rural Punjab) . Gopal Krishan . Maps of the Holy Land: Cartobibliography of Printed Maps, 1475–1900 . Compiled by Eran Laor , assisted by Shoshana Klein . The Geography of Third World Cities . Stella Lowder . A Perspective on U.S. Farm Problems and Agricultural Policy . Lance Mc Kinzie , Timothy G. Baker AND Wallace E. Tyner . Soil Erosion and Its Control. R.P.C . Morgan , ED Geopolitics . Patrick O'Sullivan . Landscape, Meanings and Values . Edmund C. Penning -Rowsell AND David Lowenthal , EDS.