生计风险及其对重点生态功能区农户生活满意度的影响   总被引：2，自引：1，他引：1  

赵雪雁  苏慧珍  何小风  介永庆  母方方  薛冰 《地理科学》2020,40(7):1124-1133

基于甘南黄河水源补给区入户调查数据,在分析农户生计风险及生活满意度特征的基础上,探明生计风险对农户生活满意度的影响。结果发现：① 甘南黄河水源补给区农户面临的主要生计风险为自然灾害、家人患病和子女学费开支,其对农户的冲击最为严重且持续时间较长;② 农户大多遭受多重风险的冲击,其生计风险多样化指数为4.12,面临家人患病与自然灾害、家人患病与子女学费开支、家人患病与建房开支等风险组合冲击的家庭较多;③ 农户的生活满意度处于中等水平,且经济示范区高于重点保护区和恢复治理区;④ 农户生活满意度除受子女学费开支、草场/耕地质量下降、人畜饮水困难、家人去世开支、生态政策等风险的严重程度和持续时间、家人患病风险的持续时间以及金融资本、自然资本、社会资本、心理资本、生计方式多样化程度的影响外,受家人患病与子女学费开支、自然灾害与子女就业困难及生计风险的综合严重性程度与综合持续性程度交互作用的影响更加显著。最后,提出防范生计风险、提高生活满意度的政策建议。  相似文献   

Immunogenicity and protective efficacy of <Emphasis Type="Italic">Vibrio harveyi</Emphasis> pc<Emphasis Type="Italic">Fla</Emphasis>A DNA vaccine in <Emphasis Type="Italic">Epinephelus awoara</Emphasis>     

覃映雪  苏永全  王世峰  鄢庆枇 《中国海洋湖沼学报》2009,27(4):769-774

  相似文献   

东明县农村宅基地情况调研报告   总被引：1，自引：1，他引：0  

刘贵华  沈素 《山东国土资源》2009,25(1)

东明县现有389个行政村,65.47万农村人口,17.9万户住户,农村居民点用地面积834.85 hm2,占全县土地总面积的9.13%,占建设用地面积的78%.  相似文献   

Geometry styles and quantification of inversion structures in the Jiyang depression,Bohai Bay Basin,eastern China   总被引：1，自引：0，他引：1  

Jinbao Su  Wenbin ZhuHuafu Lu  Mingjie XuWei Yang  Zhiyong Zhang 《Marine and Petroleum Geology》2009

Inversion structures of Jiyang depression evolved during Mesozoic and Cenozoic are classified into positive and negative inversion geometry styles. The geometry styles of the reactivated faults in the study area are attributed to their multi-phase history, which includes at least four phases of compressive deformation and subsequent subsidence caused by extensional reactivation of faults since Mesozoic.  相似文献   

Slope-confined submarine canyons in the Baiyun deep-water area,northern South China Sea: variation in their modern morphology   总被引：1，自引：0，他引：1  

X. S. Li  Q. J. Zhou  T. Y. Su  L. J. Liu  S. Gao  S. W. Zhou 《Marine Geophysical Researches》2016,37(2):95-112

On the basis of newly collected multibeam bathymetric data, chirp profiles and existing seismic data, we presented a detailed morphological interpretation of a series of slope-confined canyons in water depths of 300–2000 m in the Baiyun deep-water area, northern margin of the South China Sea. Although these canyons are commonly characterized by regular spacing and a straight-line shape, they vary in their lengths, starting and ending water depths, canyon relief, slope gradients, wall slope gradients and depth profiles along the axis. The eastern canyons (C1–C8) have complex surface features, low values in their slope gradient, canyon relief and wall slope gradient and high values in their length and starting and ending depth contrasting to the western ones (C9–C17). From the bathymetric data and chirp profiles, we interpret two main processes that have controlled the morphology and evolution of the canyons: axial incision and landsliding. The western part of the shelf margin where there were at least four stages of submerged reefs differs from the eastern part of the shelf margin where sedimentary undulations occurred at a water depth of ~650 m. We consider that the variation in morphology of submarine canyons in the study area is the result of multiple causes, with the leading cause being the difference in stability of the upper slope which is related to the submerged reefs and sedimentary undulations.  相似文献   

平阴县管好用好土地资源全力服务新农村建设          下载免费PDF全文

苏昆方 《山东国土资源》2008,24(10)

近年来,平阴县国土资源局充分发挥部门职能,按照“保护资源,保障发展,维护权益,服务社会”的工作目标,完成土地开发整理项目95个,建设规模0．90万hm^2,实现新增耕地面积0．24万hm^2;完成旧村改造31个,整治面积573．33hm^2;治理破损山体26座,治理面积205．9万m^2。改善了平阴县农村的生产生活条件和居住环境,有力促进了农村发展、农业增效和农民增收。下一步,该局要在“开发整理、示范区建设、土地经营、依法行政”4个方面管好用好土地资源,全力支持和服务新农村建设。  相似文献   

利用微区XRF技术测定地质样品中元素含量研究     

林梵宇  尹希杰  黄杰超  粟蓉  李云海  孙治雷 《矿物岩石》2021,41(4):59-67

微区XRF是新兴的固体样品表面元素半定量分析技术,由于缺少同类基质标样和仪器参数整体优化方案等问题,使得该技术在定量分析方面的研究较少.本研究利用微区XR F技术对黄铁矿地质标样硫、铁元素进行检测,探讨了真空度、驻留时间、检测器频率、X射线功率等仪器参数对非标定量准确度的影响,结果显示了真空度和X射线功率是影响检测准确...  相似文献   

Cursory seismic drift assessment for buildings in moderate seismicity regions   总被引：1，自引：1，他引：0  

朱勇  周福霖 《地震工程与工程振动(英文版)》2007,6(1):85-97

This paper outlines a methodology to assess the seismic drift of reinforced concrete buildings with limited structural and geotechnical information. Based on the latest and the most advanced research on predicting potential near-field and far field earthquakes affecting Hong Kong, the engineering response spectra for both rock and soil sites are derived. A new step-by-step procedure for displacement-based seismic hazard assessment of building structures is proposed to determine the maximum inter-storey drift demand for reinforced concrete buildings. The primary information required for this assessment is only the depth of the soft soil above bedrock and the height of the building. This procedure is further extended to assess the maximum chord rotation angle demand for the coupling beam of coupled shear wall or frame wall structures, which may be very critical when subjected to earthquake forces. An example is provided to illustrate calibration of the assessment procedure by using actual engineering structural models.  相似文献   

COMPARATIVE STUDY ON RESIDENTS＇ PERCEPTION OF TOURISM IMPACT AT TOURIST PLACES—A Case Study of Xidi, Zhouzhuang and Jiuhua Mountain     

SUQin CAOYou-hui LINBing-yao 《中国地理科学(英文版)》2005,15(1):70-79

Based on the questionnaire investigation, the authors make a comparative study on local residents‘ perception of tourism impacts in Xidi, Zhouzhuang and Jiuhua Mountain. The result shows that residents of the three places tend to have strong and consistent perception of its positive economic, socio-cultural and environmental impacts, but distinctly diverse ones of its negative impacts. Residents in Xidi and Zhouzhuang also have noticeable perception of its negative environmental impacts while those in Jiuhua Mountain have weaker perception of them.The research confirms the fact that residents are more liable to have positive perceptions at the early stage of the life cycle of the tourist places. The authors conclude that there exists a nonlinear relationship between residents‘ perception and tourism development stages, and that tourism socio-cultural impact may appear at an early stage of tourism development instead of being no universal.  相似文献   

Activity cycle of solar filaments     

K. J. Li  Q. X. Li  P. X. Gao  J. Mu  H. D. Chen  T. W. Su 《Journal of Astrophysics and Astronomy》2007,28(2-3):147-156

Long-term variation in the distribution of the solar filaments observed at the Observatorie de Paris, Section de Meudon from March 1919 to December 1989 is presented to compare with sunspot cycle and to study the periodicity in the filament activity, namely the periods of the coronal activity with the Morlet wavelet used. It is inferred that the activity cycle of solar filaments should have the same cycle length as sunspot cycle, but the cycle behavior of solar filaments is globally similar in profile with, but different in detail from, that of sunspot cycles. The amplitude of solar magnetic activity should not keep in phase with the complexity of solar magnetic activity. The possible periods in the filament activity are about 10.44 and 19.20 years. The wavelet local power spectrum of the period 10.44 years is statistically significant during the whole consideration time. The wavelet local power spectrum of the period 19.20 years is under the 95% confidence spectrum during the whole consideration time, but over the mean red-noise spectrum of α = 0.72 before approximate Carrington rotation number 1500, and after that the filament activity does not statistically show the period. Wavelet reconstruction indicates that the early data of the filament archive (in and before cycle 16) are more noiseful than the later (in and after cycle 17).  相似文献