城乡统筹背景下失地农民住房安置补偿政策研究——以重庆市璧山县璧泉街道安置房补偿为例

基于重庆市拆迁安置方式及相应标准以重庆市璧山县璧泉街道安置房补助为例,分析了璧泉街道安置房补偿的现状以及安置补偿过程中存在的问题,并提出了相应的解决对策。     

Modelling soil physical behaviour with particular reference to soil science

Soil is a very complex material. It consists of three interacting phases, namely solid, liquid and gas phase, which participate in a number of different processes controlling physical soil behaviour. These include water, solute and heat flow, mechanical stress–strain displacement and failure under shear and tensile forces. Often physical soil behaviour is investigated by treating either process in isolation rather than accounting for their interdependency. This is probably related to the multiplicity and complexity of interactions that need to be combined to fully represent the physical response of soils to variable environmental conditions. This paper describes a computer model that can analyze hydraulic and mechanical processes interactively. However, the computer model by itself is not sufficient, as the accuracy of modelling depends on the sampling, testing and verification of the soils analyzed in the soil problem. Some applications of modelling soil physical behaviour in soil science are presented.     

青海省格尔木市游牧民定居工程对策及建议

调查了格尔木地区游牧民定居工程建设、投资情况,分析了实施游牧民定居工程中发展不平衡、牧民文化素质低、自然草地资源退化、定居点后续建设滞后等问题及成因,提出了发展游牧民定居工程必须明确定居工程的目标和规划,加强基础设施建设,从而推动牧区社会经济全面发展。     

中国传统聚落营造思想解析

深入解析了中国传统聚落所具有的自然生态特征、景观特征,旨在研究其背后的思想文化根源,希望借此能对现代村镇的建设活动有一定的启发和指导作用。     

经验公式法在季冻地区软土地基沉降预测中的应用

利用两种经验公式法对哈尔滨绕城高速公路试验段软土地基沉降观测数据进行了计算,对计算结果与工程实际情况进行了对比分析,发现沉降过程、最终沉降量、沉降速率和路堤横断面差异沉降等较为符合工程实际,认为经验公式法在季冻地区软土地基沉降预测的应用有实用意义。     

人工鱼礁表面分离细菌形成单一生物被膜对厚壳贻贝稚贝附着的影响

为探讨存在于人工鱼礁表面的海洋细菌与贝类附着之间的互作关系,本研究从自然海域中的人工鱼礁表面上分离了9株海洋细菌,并分别构建单一细菌生物被膜,探索不同细菌种属形成的生物被膜特性与厚壳贻贝(Mytilus coruscus)稚贝附着之间的关系。结果显示,9株人工鱼礁表面细菌形成的生物被膜对厚壳贻贝稚贝附着的诱导活性存在显著差异,其中,Mesoflavibacter sp.2对稚贝附着的诱导活性最高,Phaeobacter sp.2的诱导活性最低。Sutcliffiella sp.1和Jeotgalibacillus sp.1的细菌密度与诱导活性呈显著正相关,Cytobacillus sp.1和Phaeobacter sp.2的细菌密度与诱导活性呈显著负相关。通过比较分析Mesoflavibacter sp.2和Phaeobacter sp.2生物被膜的蛋白质及多糖含量发现,生物被膜对厚壳贻贝稚贝附着的诱导活性与多糖含量呈显著负相关,与蛋白质含量呈正相关。本研究初步探索了人工鱼礁表面细菌形成的生物被膜对厚壳贻贝稚贝附着的影响,为后续在自然海区进一步解析人工鱼礁表面生物被膜与海洋无脊椎动物附着的互作关系具有重要理论研究意义,同时,对于人工鱼礁表面海洋生物附着机制的研究具有重要的实践价值。     

生物淋滤法对污泥中镉去除及污泥性质的影响

[目的]研究生物淋滤对污泥中镉的去除效率及污泥性质的影响,探讨生物淋滤法对污泥中镉的去除效率和机制。[方法]通过淋滤前后污泥养分含量、沉降性能和脱水性能的变化研究了生物淋滤对污泥性质的影响。[结果]结果表明,生物淋滤法对污泥中镉的去除效率在60％左右,生物淋滤去除了污泥中以碳酸盐结合态和有机质结合态存在的镉,使污泥中交换态镉的比例提高到58％,活性增强。生物淋滤能改善污泥的沉降性能和脱水性能,但使污泥的有机质、氮、磷和钾含量分别降低50．92％、68．86％、52．42％和41．22％。[结论]为城市污泥农地资源化利用提供技术支撑。     

浅析新住区时代的景观文化

分析了我国计划经济时代、商品经济时代、新时期住区的文化,包括：文化生活、景观文化、生态文化、传统文化等。     

Soil erosion rates in tropical villages: A case study from Lake Victoria Basin, Uganda

In an effort to pinpoint the sources of sediment pollution in Lake Victoria, the contribution of sediment from compounds, landing sites, unpaved roads and footpaths is determined in the catchment of Nabera Bay and Kafunda Bay at the northern shore of Lake Victoria in southern Uganda. The volume of soil loss is determined in 36 compounds, 1 school and 1 landing site by comparing the original and current soil surface. The original soil surface is reconstructed using botanical and man-made datable objects. The soil loss rates are calculated by dividing the eroded soil volume by the age of the oldest datable object. Considering all compounds and landing sites in the study area, the average soil loss rate in compounds amounts to 107 Mg ha^? 1 year^? 1 (per unit compound) and to 207 Mg ha^? 1 year^? 1 per unit landing site. The soil loss from footpaths and unpaved roads is calculated by multiplying the total length of footpaths and unpaved roads with the average width and soil loss depth. The mean soil loss rate on footpaths is 34 Mg ha^? 1 year^? 1 and on unpaved roads equals 35 Mg ha^? 1 year^? 1. Compounds, landing sites, footpaths and unpaved roads occupy a small fraction of the study area (2.2%), but contribute disproportionately to the total soil loss (i.e. 85%) in the study area. It is concluded that compounds, landing sites, footpaths and unpaved roads are very significant sources of sediment pollution to Lake Victoria. This needs to be considered when designing strategies to reduce sediment production in the area.     

基于“非承包面积”征地安置补助费分配机制的创新——以安徽省芜湖市城郊征地为例

在我国城市化发展进程中,征地安置补助费的分配纠纷已成为城郊最为突出的村民内部矛盾,并引发了许多社会问题。健全安置补助费分配机制,是处理好村民内部矛盾、促进农村社会和谐发展的重要课题。在吸收当前农村安置补助费分配的主要方式和优点的基础上,基于农村存在的大量＂非承包面积＂的发现,统筹兼顾各方利益,提出安置补助费分配的新机制——统筹分配法,并对其实践过程中所面临的问题进行了探索。