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Background and reflections on Dingxi earthquake of July 22, 20
Fig. 5 Houses damaged by Dingxi earthquake. The first three photos are houses made of adobe, earth, and wood structures, whereas the last photo represents a masonry structure (sources: Xinhua, Chinanews)
Dingxi Prefecture of Gansu Province’s development of ...
2.1.2 The rainwater collection & water-saving irrigation project From 1997, Dingxi Prefecture administration has extended the rainwater collection project which mainly focus on the resolving the drink water problems to the re-irrigation project in farm land.
Evaluation of Soil and Water Conservation Function in Dingxi ...
In this study, we introduced an index system for the evaluation of soil and water conservation functions, including various influencing factors.
Gansu Urban Infrastructure Development and Wetland Protection ...
This PR update is the attachment of Dingxi urban infrastructure construction project Resettlement Plan (approved by ADB in April 2012) of ADB Loaned Gansu Urban Infrastructure Development and Wetland Protection Project (ADB Project Number: 44020-PRC).
Study on Eco Environmental Effects of Land Use Function ...
fferences, land use patterns, transition mechanisms, and eco-environmental effects differ from those in developed eastern regions. Therefore, this study focuses on Dingxi City in Gansu Province, northwest China, to analyze the spatial and temporal characteristics of land use tran.
甘肃定西地区地质灾害危险性评价
为此,本文以甘肃定西地区为研究区,基于确定系数与逻辑回归耦合模型,分析地质灾害的空间分布特征及驱动因素,利用空间自相关分析探讨在不同尺度下地质灾害的空间聚集特征,以期为区域地质灾害监测与防治提供科学依据。 甘肃省定西地区位于青藏高原东北缘、黄土高原和西秦岭交汇地带。 研究区断裂构造发育,新构造活动强烈,特别是地震活动频繁,地表岩土体类型复杂,构造活动造成岩体破碎,新近系- 第四系固结-半固结,甚至为固结的地层发育,地壳隆升和河流侵蚀造成许多沟壑,斜坡上表层黄土分布广泛,地质灾害多发。 同时,人类工程活动对环境的破坏和气候变化等因素影响加剧了地质灾害(图1)。 近年来,受极端天气、地震和人类活动等多重因素叠加的影响,定西地区地质灾害发生频率明显上升。
甘肃定西市地下水
自然条件限制水资源十分短缺,是典型的资源型缺水城市。随着经济社会快速发展和城镇化进程不断加快,定西市水资源供需矛盾日益突出,局部地区地下水水位持续下降,对水资源可持续利用和经济社会可持续发展构成威胁,摸清地下水开发利用现 .
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