排序方式: 共有53条查询结果,搜索用时 62 毫秒
1.
The AVI project: A bibliographical and archive inventory of landslides and floods in Italy 总被引:9,自引:0,他引:9
The AVI project was commissioned by the Minister of Civil Protection to the National Group for Prevention of Hydrogeologic Hazards to complete an inventory of areas historically affected by landslides and floods in Italy. More than 300 people, divided into 15 research teams and two support groups, worked for one year on the project. Twenty-two journals were systematically searched for the period 1918–1990, 350,000 newspaper issues were screened, and 39,953 articles were collected. About 150 experts on mass movement and floods were interviewed and 1482 published and unpublished technical and scientific reports were reviewed. The results of the AVI project, in spite of the limitations, represent the most comprehensive archiving of mass movement and floods ever prepared in Italy. The type and quality of the information collected and the methodologies and techniques used to make the inventory are discussed. Possible applications and future developments are also presented. 相似文献
2.
3.
陕西汉中“98.7”洪涝灾害剖析 总被引:2,自引:2,他引:0
对汉中市1998年7月上旬的雨情、灾情作了初步统计,分析了致灾原因及经验与教训。 相似文献
4.
坡度图在滑坡研究中的应用 总被引:2,自引:0,他引:2
本文阐述了坡度图的概念和作用;详细介绍了坡度尺、坡度图的作法、以及坡度图在兰州地区的应用结果;简要分析了斜坡坡度与滑坡的关系。 相似文献
5.
6.
陕西彬县百子沟滑坡预报的尝试 总被引:3,自引:1,他引:2
通过野外调查、形变监测,宏观前兆分析,对百子沟矿区滑坡蠕变规律和运动过程作了较全面的论述。为黄土高源滑坡、矿区滑坡临滑预报做出了范例。 相似文献
7.
黄土高原滑坡及其利用的探讨 总被引:5,自引:0,他引:5
黄土高原滑坡是十分严重的自然灾害,往往能给人民生命财产造成极大损失,又是黄土高原严重水土流失的主要产沙方式。如何变害为利,利用滑坡天然聚湫以及利用滑坡机理,发展人工滑坡,促进水保、治理沟谷,发展农业生产是黄土高原研究的新课题。 相似文献
8.
The characteristics of species diversity in Cupressus funebris secondary forest under the effect of geological hazard were explored by selecting the typical landslide surface of Fenghuang Mountain, Leigu Town, Beichuan County, which was derived from the 5.12 Wenchuan earthquake. The results showed that 93 species belonged to 42 families, and 78 genera were found in the landslide area, where the main families were Compositae, Leguminosae, and Gramineae-based. Further, 97 species in the transition area belonged to 39 families and 80 genera, and the main families were Compositae, Gramineae, and Rosaceae-based. In all, 108 species were recorded in the non-landslide area, which belonged to 59 families and 92 genera, the main families of which were Compositae, Rosaceae, and Gramineae-based. Compositae and Gramineae played important roles in the landslide recovery process after earthquake. The Pielou index (JSW) was the highest in the non-landslide area of the herb layer, whereas the richness index (D) was the lowest; the Shannon-Wiener index (H) and Simpson index (H') showed medium values. In the non-landslide area, the D, H, and H' were the highest in the shrub layer, whereas the JSW was the lowest. Further, the species diversity index of the transitional area was higher than that of the landslide area. In the tree layer, the D and H were both the highest and lowest in the landslide area and transition area, respectively. In contrast, the H' and JSW were the highest in the transition area and the lowest in the non-landslide area. The distribution of vegetation was generally consistent with the distribution of soil nutrients in the spatial distribution of surface soil nutrients. The succession of trees in the landslide area was relatively slow and at the initial stage, and the pioneer species were Coriaria nepalensis, Leptopus chinensis, and Arthraxon lanceolatus in this area. Taken together, the findings suggested that the stability of a plant community can be increased by improving the soil and stabilizing the slope. © 2018 Science Press. All rights reserved. 相似文献
9.
系统加权聚类法及其在滑坡稳定性预测中的应用 总被引:11,自引:1,他引:11
本文以工程地质类比分析法为基础,针对一般系统聚类法在滑坡稳定性预测中应用的不足,提出并建立了一种系统加权聚类法。最后以三峡库岸研究程度较高的36个边坡为例,进行了一般系统聚类法与系统加权聚类法的对比研究。对比研究结果表明:系统加权聚类法应用于滑坡稳定性预测,其预测精度有较大提高。 相似文献
10.