地震恢复重建规划区地质灾害特征及危险性评价

通过收集有关资料和实地勘察,描述并总结了四川省青川县板桥乡城建设用地地质灾害的发育特征。根据地质灾害点目前的稳定状态和潜在危害程度,定性评价了区内各地质灾害点的危险性。并基于各地质灾害点的危险程度,综合区内的地形地貌、地质条件和人为因素、气象水文条件,对青）ll县板桥乡地质灾害危险性进行了分区,为建设用地的规划设计提供了依据：     

加油站雷电灾害风险评估探讨

文章通过分析加油站所在地区的气象和地理环境、雷暴活动以及加油站内外的各项特征,对加油站进行了雷电灾害风险评估,通过评估出来的人员生命损失的风险值(R1为1.52×10-5)和容许值(R t为10-5)进行比较,确定出需要对该加油站采取防雷措施或采取何种程度的防雷措施,并从安装SPD等级及方法、防火系统、以及内外等电位连接方面提出了减少雷击导致的建筑物或服务设施的可能损失的参考解决方案。     

路南石林喀斯特的形态特征及地质演化

石林喀期特是喀斯特地貌中的一种极端形式，主要由表面溶良发育，高达３０￣５０ｍ的剑状石峰、石柱组成。同世界其他一些著名的剑状喀期特相比，路南石林喀斯特具有最为复杂的地质演化历史和最为多样的形态。研究表明：自２亿５千万年前早二叠世末期首次出现石牙以来，石林的发育经历了四大演化阶段；石林的形成是有利的地质、水文、气候条件综合作用的结果，而土下溶蚀是主要形成机理。剑状、峰状、塔状、蘑茹状及其他不规则状为石     

滑坡危险性分析中地震动的概率性估算及地震滑坡的危险性评判

论述了滑坡危险性分析中如何科学地估算地震力的问题。主要思路概括为：将滑坡体视为一个完整体系的结构物（或震动对象）,将滑坡场点视为一个工程场点,利用比较成熟的地震危险性概率分析方法计算滑坡体未来若干年内可能遭遇的不同超越概率水平下的地震峰值加速度,这种不确定性的地震加速度是由地震预报的不确定性带入的,由此计算地震力和惯性力。最后,对地震触发滑坡的机理展开讨论。     

Resilience: Analyzing the Crisis Management of Ski Resorts in China

Resilience has become an important concept for the ski resorts of China, which have suffered heavy losses due to COVID-19. In order to help China’s ski resort service industry successfully adapt to the crisis and achieve sustainable development, the goal of this paper is to develop the definition of resilience of the ski resort service industry through interviews based on the concept and general analysis framework of resilience. The ski resort resilience theory analysis framework is then constructed from the three basic elements (market, skiing, and stakeholders) and four system features (flexibility, adaptability, and collaborative learning ability). The results indicate several measures that can be taken to spread risk: enrich the product supply; eliminate risks and build a multi-agent networked industrial governance system; and establish a risk prevention and management mechanism based on a multi-organization alternative learning mechanism to overcome the difficulties encountered in the development of ski resorts.     

BOOK REVIEWS

Book Reviews in are this Article Northern Waters . Clive Archer and David Scivener , EDS. Principles of Geographical Information Systems for Land Resources Assessment . P. A. Burrough . The Great Lakes: An Environmental Atlas and Resource Book. Environment Canada , United States Environmental Protection Agency , Brock University , AND Northwestern University . Uneven Development in Southern Europe: Studies of Accumulation, Class, Migration and the State. Rays Hudson AND Jim Lewis , EDS. Hazards: Technology and Fairness. Robert W. Kates and Alvin M. Weinberg . The Price of War. Urbanization in Vietnam 1954–85. Nigel Thrift and Dean Forbes . Population Structures and Models: Developments in Spatial Demography. Robert Woods and Philip Rees , EDS. Evaluating Earthquake Hazards in the Los Angeles Region-An Earth-Science Perspective. J. I. Ziony , ed .     

紫色土经济林栽培技术

为了合理开发利用紫色土 ,保护生态环境 ,为紫色土经济林栽培提供实践指导 ,对紫色土经济林栽培技术进行了研究 测定了全垦、带垦、水平梯土、水平梯土撩壕、鱼鳞坑等 5种整地方法的土壤以及对照地 (不整地 )的土壤侵蚀量 ,观测了各种整地方法对经济林木生长发育的影响 ,同时 ,对栽植在紫色土和板页岩红壤上的经济林木的生长发育情况进行了对比 结果表明 :不同整地方法土壤侵蚀量按从大到小的顺序排列为全垦 (81 4t·hm-2a-1,以下单位均为t·h-2 a-1) >带垦 (63 6) >水平梯土 (3 8 7) >水平梯土撩壕 (3 1 8) >鱼鳞坑 (2 4 3 ) >对照(2 1 1) ;不同整地方法对经济林木生长发育的影响按由好到差的顺序排列为水平梯土撩壕、水平梯土、全垦、带垦、鱼鳞坑、对照 ;在一般抚育管理条件下 ,在紫色土坡地生长发育较好的树种或品种有板栗、枣树、杨梅、枇杷、萘李、甜柿、水蜜桃 ,生长发育一般的树种有茶树、无核蜜柑、柚子 ,生长发育较差的树种有脐橙、柑、葡萄 因此 ,在坡度不大 (<2 5°)的紫色土坡地营造经济林时 ,整地方法采用水平梯土撩壕为宜 ,栽培树种可选择板栗、枣树、杨梅、枇杷、萘李、甜柿、水蜜桃 ,还可选择无核蜜柑、茶树、柚子等     

粗木质残体(CWD)的水文生态功能——当前森林水文研究中被忽视的重要环节

目前对森林生态系统粗木质残体的研究主要着眼于数量动态、分布格局、分解速率以及生物多样性保护的作用上，而对江河上游森林生态系统中粗木质残体的水文调蓄、缓洪滞淤等功能至今还未能引起足够的重视。CWD作为森林生态系统的重要部分，茯水文生态功能的发挥主要是通过影响降水在林内的再分配以及林内微环境来实现的。森林CWD水文功能的发挥要同时受到外界环境和其本身持水性能的影响。CWD腐朽级别愈高，自然相对含水量愈高，而且愈容易吸水达到饱和。在长江上游亚高山暗针叶林生态系统中，自然状态下CWD可以蓄持约7.41mm的降水，若使CWD全部达到饱和则可以蓄持降水达9.91mm，这意味着自然状态下的CWD的有效持水量可达到2.50mm，无疑对于长江上游森林生态系统的蓄水调水、滞洪防蚀功能是一大贡献。     

Application of biomarkers for improving risk assessments of chemicals under the Water Framework Directive: a case study

To answer the requirement of the European Commission's Water Framework Directive (WFD) for biological-effects endpoints to classify the ecological health of aquatic ecosystems, we propose the biomarker response index (BRI). The BRI, based on a suite of biomarkers at different levels of biological response at the individual level, provides an integrated relative measure of the general health status of coastal invertebrates. Using the BRI, the health of mussels (Mytilus edulis) from 10 estuaries classified by the Environment Agency of England and Wales under the WFD was compared. Eight sites were healthier than predicted and two showed a similar health status to that of the predicted point-source pollution risk classification. Results indicate that the BRI offers a potential measure of organism health that can be used in monitoring under the WFD as an additional aid to reduce uncertainty in defining risk classification and to provide better evidence of existing impact.