推进城市化进程,跨越水资源门槛,实现大开发战略

人类社会的城市化进程始终是与对水资源的开发利用同步的 ,水资源短缺将是制约城市发展的一道门槛。然而 ,在我国西部地区存在着严重的水资源短缺和难以利用的情况 ,无序的城市化又进一步恶化了本已极为严峻的水资源短缺。但城市化始终是实现西部开发的必然选择。因此 ,在实现西部大开发战略 ,推进城市化进程的过程中 ,必须通过严格控制中心城市规模 ,以控制对水资源的局部过度需求 ;通过进一步优化城镇体系布局 ,在推进城市化进程的同时 ,实现区域范围内水资源的供需平衡 ;通过对现有的城市产业结构加以调整 ,以提高水资源的利用效率。只有依靠这种适宜的城市化战略 ,才能在城市化进程中跨越水资源门槛 ,最终实现西部地区的可持续发展     

Poverty and the Deterioration of Natural Soil Capital in the Peruvian Altiplano

The Peruvian altiplano is a marginal agricultural region with limited infrastructure, climate constraints, and high levels of poverty. Data were collected from 265 farms in four different agricultural regions, and data from three of those regions are analyzed here. Regressions were run with soil nutrient loss, soil depth loss, and yield loss over the past 20 years, as perceived by farmers. Location, topographical and management factors were considered. Additional regressions were run to examine the determinants of two agricultural management practices which were found to affect soil quality, namely fallowing and ploughing vertical furrows. Use of traditional fallowing (aynoca) was associated with helping to preserve soil quality, and was practiced by households with more education, with higher non-farm income, and in villages which had benefitted from natural resource development projects. Vertical furrowing similarly was associated with helping preserve soil quality, and was practiced by households with fewer unmet basic needs. These results have implications for the agricultural and development strategies to be followed in the region.     

湖北樟油化学资源

湖北省是中国樟油的重要产区之一。应用GC／MS技术，分析了湖北各种樟油的化学组成，共鉴定出108个化合物；经植物化学分类研究，发现湖北樟油的主要化学类型，现知共有12个；对于每个化学类型主成分的经济用途和应用价值，分别作出了比较分析与评述。报道了各类型樟油的产地，生态环境和物理性质。这些研究成果为湖北樟油资源的合理开发利用和保护提供了科学依据。     

青城山旅游资源美感环境质量评价

青城山是我国第一批国家重点风景名胜区之一，名山钟灵毓秀，那烟雨蒙蒙的翠峰，奔泻直下的飞泉，白云缭绕的通天石窟，神奇梦幻的水晶溶洞吸收了无数中外游客，本文在青城山区景区进行了实地考察的基础上，对青城山旅游资源的美感质量做了初步的，客观的，定性定量的分析。     

水资源的可再生性与可持续利用

本文探讨了对水资源可再生性及持续利用的一些基本认识 ,指出水资源的持续利用是水资源可再生性的最终落脚点 ,水资源的可再生性可用弱、中等、强来区分 ,水资源的弱可再生性是起点 ,水资源的强可再生性是最高境界 ,可以通过水资源可再生性维持来达到此最高境界 ,从而促进区域可持续发展。     

面向市场经济的中国水资源可持续利用策略

中国是一个人口大国，人均可利用水资源量少，水资源利用的低效和浪费以及污染问题进一步加剧了水资源的供需矛盾。在中国的市场经济制度渐趋发展的形势下，要实现水资源的可持续利用，就必须突破过去计划经济体制下的不合理框架，更多地使用符合市场经济要求的价格机制。市场模式和管理体制。     

Comprehensive Assessment of Regional Circular Economy Development Based on Efficiency of Resource & Environment:A Case Study of Jiangsu Province

In the first, the paper gave a retrospective analysis on the comprehensive assessment of circular economic development. According to the requirement of improving resource & environment efficiency, the paper designed an analytical framework for a comprehensive assessment of regional circular economic growth, which consists of the goal, object and technical line of the comprehensive assessment of regional circular economic development. Given that, the paper discussed the criterion for choosing the assessment index, the approaches of index's weighing determination, the means of data standardization, and the reference system of assessment index value and so on. According to the framework of regional circular economic development evaluation,the paper made a comprehensive evaluation of Jiangsu Province's circular economic development. The result shows that from temporal change, Jiangsu Province's circular economic development had different stages;from the spatial comparison, there is variance among different regions, which could be divided into different types according to the spatial variance and the relation between the development of circular economy and the aggregative index number. There was a remarkable correlation between circular economic development level and GDP or the 2nd industry GDP. Finally, the paper gives some suggestions on how to promote the development of circular economy in Jiangsu Province.     

青岛市剩余污泥处置现状分析及资源化利用

介绍了青岛市城市污水处理厂剩余污泥目前的产生情况及处置现状,对比分析了国内外先进的剩余污泥处置方法和技术。提出了适合青岛市剩余污泥资源化利用的途径和方法。剩余污泥既是污染物又是一种资源,污泥的处理、处置与资源化利用相结合才是其最好的出路。     

贵州响水矿水资源优化配置模型研究

响水矿投产以来,由于缺乏系统规划和科学管理,出现了矿区生活用水紧缺而矿井水大量浪费的矛盾状况。在对响水矿区内水文地质、水资源情况及矿井涌水量进行详细分析的基础上,以响水矿区社会效益、经济效益和环境效益可持续发展为目标,利用系统分析原理,建立响水矿区水资源优化配置模型。该模型考虑了矿区复杂水循环机理、水资源供需关系、水资源的水质等各方面限制因素,可为响水矿矿区实现水资源的可持续利用与社会、经济和环境的协调发展提供技术支撑。     

我国可再生资源开发利用的现状、存在的问题及对策建议

本文在深入分析可再生资源开发利用对我国社会经济可持续发展的意义,我国可再生资源综合开发利用的现状、存在的问题以及这些问题的成因的基础上,分析并提出我国可再生资源综合开发利用方面的对策和建议。