扬州市丘陵岗地森林植被恢复树种选择初探

扬州市丘陵岗地植被恢复选择树种时必须考虑乡土树种、经济林树种和园林景现植物，提出了意杨（populus Canadensls）等9个备选树种为扬州市丘陵岗地森林植被恢复的主要树种。     

基于太原市森林资源数据的森林生态体系构建研究

森林生态体系的建立,是发挥森林生态效益的必要物质条件,是调节人类生存环境的载体和加湿器。笔者以太原市森林资源的数量和质量统计数据为基础,从森林类型、树种组成、龄组组成、森林起源、林种组成5个方面进行统计分析,提出了森林经营及森林生态体系构建的措施。     

广州市城市森林体系规划建设探讨

针对广州市林分质量差、林种结构不合理和龄组比例不协调等城市森林现状,阐述了广州市城市森林体系规划建设的基本原则和目标,构建了广州市内环、中环和外环分项规划框架,重点讨论了市域林带(包括主干道绿化带、市域生态廊道、市域滨水林带)和城市林区(包括生态景观林区、水源涵养林区、商品林区)、城区花园式单位、自然保护区与野生动物栖息地等重点项目的规划建设问题.     

廊坊市果品业跨越式发展途径

通过对廊坊市果品发展现状的分析,从优化树种和品种结构、优化布局、提高果品质量、扩大栽培面积和产业化经营等方面,论述了廊坊市果品业跨越式发展的着力点,并提出了廊坊市果品业实现跨越式发展的途径.     

The Research on the Capacity Mechanism of City Space Expanding and Its Ecological Model

In the period of the city space expanding with the high speed, the theories system used to explain the city space is not perfect in our country. It is lack to expand this mechanism, among them research ecosystem' s main factors to particularly should be enhanced, especially the ecological factor. With rational analysis, the paper puts forward the viewpoint that the urban space is in ecological changing period, and considers that the power affecting the urban space expand involves motivity and resistance. Building the corresponding ecological model helps to cognize the city development roundly with ecological model constructed. A few possible ways is put forward which can be used in planning innovation, and have vivid leading function to the frondose city planning method.     

岩溶区县域土地利用与区域协调发展研究 ——以贵州省清镇市为例

土地利用与区域协调发展实际上是分析和预测现有及未来人口、乡村经济和城镇经济发展趋势约束下的土地利用是否有利于生态格局的优化。利用清镇市土地利用详查及其更新数据与相关社会经济数据，运用GIS及相关统计方法和经验评估等，探讨了清镇市土地利用与区域协调发展框架，结果表明：（1）清镇土地利用动态体现为6种利用类型，但土地利用总体上仍以农业景观为主，没有形成城郊混合景观。驱动这一土地利用动态变化的主导因素主要有人口增加，城市化进程的加快，经济结构演进及土地不同用途下比较效益的差异；（2）5年间，清镇各乡（镇）区域经济发展的绝对差异和相对差异均呈扩大趋势但增幅均已放缓，即清镇区域经济发展朝极化方向偏移。几个经济发达地区，如红枫湖镇、站街镇、卫城镇和新店镇等，对于全市经济的影响越来越大。最发达地区与最落后地区的差距在不断增大；（3）土地利用与区域协调发展框架在满足当地城乡居民对农副产品生活的需要的同时，又协调了与经济发展的矛盾，但粮食安全和经济安全的保证又未有碍于生态环境的良性循环；（4）岩溶地区可持续发展必须协调好土地利用与区域发展的关系。     

Understanding and Thinking on the Profits of Government from City Landuse

In this paper some factors influencing the profits of government from city land, including urban planning, land translation and tax & fee of land etc. The authors also give some suggestions & measures for raising the profits from city land for the government.     

SOME EXPERIANCES AND PROBLEMS IN CHIN A OLD CITY RECONSTRUCTION

Through a historical review of China old city reconstruction and practices in cityplanning,this paper presents six basic problems in old city reconstruction.     

Evolution of Conception of Ecosystem Service Value and City Planning

Ecosystem services imply the natural environmental conditions and their effectiveness formed and sustained by ecosystems and ecological processes. From the view of city planning, in this paper, the evolution of the conception of ecological service-value and the relationship between the ecological service-value and city planning are reviewed. At the same time, it raised a conception about ecological space service value and negative ecological effect and an innovation proposal on city planning is presented.     

Urban Environmental and Urban Ecological Problems in the Sustainable Development of Chongqing City and Its Countermeasures

The main urban environmental and urban ecological problems existing in the sustainable development of Chongqing city were introduced in this paper. Furthermore, the causes and features of these problems were analyzed. At last, some countermeasures, which would provide some scientific bases for accelerating the urban sustainable development of Chongqing city, were suggested.