生态绿色化与经济高质量耦合协调的时空演化

文章利用耦合协调度模型与障碍度模型,分析省域生态绿色化与经济高质量之间的耦合协调关系,识别其时间演化规律与空间分布特征,诊断其关键障碍因子。结果显示:考察期内省域生态绿色化与经济高质量的耦合协调水平均呈现上升态势,但各省份具体情况差异显著;多数省份生态绿色化与经济高质量耦合协调水平属于磨合型,整体表现为"高低型省份少,中间型省份多"的"橄榄球"型模式,呈现"沿海高,内陆低"的空间分布特征,与良性协调仍存在一定差距;省域生态绿色化与经济高质量耦合协调的一级指标障碍度排序依次为绿色化影响、绿色化状态、创新驱动、结构优化、绿色化压力、效率导向,各省份由于区位条件、经济状态等的不同,关键障碍因子存在明显差异。

基于绿色化与生态化的交通建筑设计研究

随着科学技术的不断进步,经济水平的不断发展,人们在自身经济发展水平提高的同时,将目光逐渐转移到节能环保的理念之上,人们对于生活周边的产物开始要求绿色化与生态化,为推动可持续发展理念的深入落实,交通建筑设计也开始绿色化与生态化,本文介绍绿色化与生态化的意义,并分析交通建筑设计现状,提出绿色化与生态化的交通建筑设计的策略。

未来皮革行业发展趋势及展望

皮革行业虽是传统行业,但其也是与三农密切相关的重要民生产业,是具有国际竞争优势的轻工传统支柱产业,在美化人民生活、建设生态文明、带动相关产业发展等方面发挥着重要作用。然而,近年来,我国皮革行业的发展动力呈现出一定程度的不足。基于此,本文综述了皮革行业未来的发展趋势与前景展望,从生态绿色皮革化学品、功能化智能化皮革、皮革基柔性电子材料等10个方面入手,详细分析了皮革行业的市场现状和发展方向,强调了科技创新对于皮革行业转型升级的驱动作用,为未来皮革的设计和开发提供了思路,为皮革行业的高质量发展提供了有力支持。

黄河流域产业绿色化与生态环境绿色化耦合协调度时空演变

以黄河流域35个城市为研究对象,分别构建产业绿色化与生态环境绿色化指标体系,基于熵值法测度两系统综合指数,并通过耦合协调度模型和空间自相关法对2009—2018年两系统耦合协调度的时空特征及空间集聚性进行分析。结果表明:(1)黄河流域产业绿色化与生态环境绿色化综合指数总体呈上升趋势且具有趋同性,上游地区生态环境绿色化水平高于产业绿色化水平,中下游地区相反;(2)时空维度上,黄河流域产业绿色化与生态环境绿色化的耦合协调度总体呈上升趋势,上中下游地区呈现“凹”字型发展特征且稳定程度不同;(3)空间集聚上,黄河流域产业绿色化与生态环境绿色化耦合协调度呈显著正相关性,存在明显聚集性,高-高聚集主要集中于上游地区,低-低聚集由中游地区向中下游地区扩展。

PLC应用于喷泉控制系统的方案设计

采用PLC与计算机组成的喷泉控制系统,充分利用PLC的通信功能和编程特点,实现上位机与下位机之间的通信和控制,由远程计算机与PLC之间进行通信,通过PLC实现对喷泉各种水型和灯光的快速控制;另一方面,利用PLC的自诊断功能,可实现喷泉控制系统的故障诊断,不但缩短了维修时间,而且提高了控制系统的稳定性。

The Current Status, Problems and Prospects of Researches on the Carrying Capacities of Ecological Environment in China

Determining the carrying capacity of ecological resources is the key to finding contradictions between human activities and the environment,as well as the links between economic growth,environmental protection and social development.In recent years,the carrying capacity of the ecological environment has been extensively studied at home and abroad.Through extensive literature research and analysis,this paper discusses the current status and main problems of recent research on the carrying capacity of the ecological environment in China.For example,two of the main problems are that:1)the concepts and connotations are not clear enough,and 2)the research content is not systematic enough.This is followed by a summary of the evaluation index system and main calculation methods.Finally,according to the research status and development trends at home and abroad,the possible direction for the development of this research field in the future is proposed.

A Review of the Contemporary Eco-Agricultural Technologies in China

Eco-agriculture is the principal measure for addressing the environmental issues caused by agriculture and an essential direction for agriculture in the future. Meanwhile, the development of eco-agriculture is inseparable from its technical support. At present, the eco-agricultural technologies commonly used in China can be divided into three categories according to their theoretical basis and practical types: the technologies used to realize the precision input of material resources, the technologies used to improve material circulation efficiency, and the technologies that use the principle of species symbiosis. Although these technologies provide essential support for developing eco-agriculture in China, there are also problems associated with their implementation, such as poor technical application and a low level of industrialization. Therefore, in the future development of eco-agriculture technology in China, the technologies producers should take the actual problems as guide and pay attention to the popularization, industrialization, and application of the technologies.