海岩小说的几种叙述模式及弊端

海岩的长篇小说《河流如血》再创出版高记录,但作家仍局限于特有的小说叙述模式,这部作品没能做到相应的创新。概言之,模式第一面是“刑侦+恋爱”;模式第二面是“财子+佳人”;模式第三面是“道德+法制”。文学创作需要不断创新,创新的过程也是对创作模式的不断突破过程。作家应该警惕的是,不要让模式成为创作的桎梏。     

桂林岩溶盆地第四纪粘土砾石层沉积与漓江袭夺

通过对桂林岩溶盆地内第四纪粘土砾石层调查研究,认为:①粘土砾石层成因不属冰川沉积或湖相沉积,而是山地河流相沉积和再沉积产物。前者时化属中更新世,后者成因复杂,已发现坡积相、洪积相,时代属晚更新世;②漓江溯源侵蚀过程中发生多次袭夺;③岩溶盆地的发育与漓江袭夺控制和影响粘土砾石层的沉积和再沉积。     

应警惕新型墙材企业的毁地行为

经过全省上下的共同努力,我省一大批粘土砖瓦窑厂被依法强制取缔,宝贵的耕地资源得到了有效保护,因窑厂毁地、污染环境而引发的群众上     

Multiple Time-scale Characteristics of Runoff Variations in Middle Reaches of Huolin River and Their Effects

The Huolin River is one of the most important water sources for Xianghai wetland, Horqin wetland, and Chaganhu wetland in the western Songnen Plain of Northeast China. The annual runoff series of 46 years at Baiyun- hushuo Hydrologic Station, which is located in the middle reaches of the Huolin River, were analyzed by using wavelet analysis. Main objective was to discuss the periodic characteristics of the runoff, and examine the temporal patterns of the Huolin River recharging to the floodplain wetlands in the lower reaches of the river, and the corresponding effects of recharging variation on the environmental evolution of the wetlands. The results show that the annual runoff varied mainly at three time scales. The intensities of periodical signals at different time scales were strongly characterized by local distribution in its time frequency domain. The interdecadal variation at a scale of more than 30yr played a leading role in the temporal pattern of runoff variation, and at this scale, the runoff at Baiyunhushuo Hydrologic Station varied in turn of flood, draught and flood. Accordingly, the landscape of the floodplain wetlands presented periodic features, es- pecially prominent before the 1990s. Compared with intense human activities, the runoff periodic pattern at middle (10-20yr) and small (1-10yr) scales, which has relatively low energy, exerted unobvious effects on the environmental evolution of the floodplain wetlands, especially after the 1990s.     

“中国的河流”一节的环境教育探究式教学

一、探究教学法的基本特点 探究教学法重点突出教学的生活化、开放性、参与性特点，旨在让学生掌握学科基本原理和概念，发展学生的探索性态度。同时，运用发现学习形式，实施环境问题，使学习者亲身发现环境问题要素的内在因果关系，培养他们主动解决和处理问题的能力。     

VIC陆面水文模型在白莲河流域径流模拟中的应用

本文从气象与水文水资源学科交叉的角度引进VIC陆面水文模型,将其应用于湖北省白莲河流域,探讨模型在中小流域降雨径流模拟中的适用性。本研究利用白莲河流域DEM、植被、土壤等数字化资料,经过模型预处理,建立了白莲河流域VIC模型框架。并进行了模型参数敏感性分析。模拟结果表明,模型基本能够反映该流域的日径流水文过程,具有一定适用性。