新经济“非可持续发展”问题探析

新经济的出现有助于可持续发展的一面,但它也会给社会经济的发展带来不同于工业经济时代的新的“非可持续发展”问题。因之新经济像工业经济一样不可能自然而然地成为可持续发展的经济,只有制定和实施适合于新经济特点的可持续发展战略,新经济才有望成为可持续发展的经济,成为给人类带来更多福祉的先进的经济形态。

非可持续发展模式再生产案例分析

本文从一个案例入手,以政府行为、企业行为和公众行为的互动为分析框架,讨论导致非可持续发展的行为整合的一般模式;并在此基础上分析非“可持续发展”模式再生产的结构性因素,即决定三种行为整合结果的深层原因,以寻求改变行为整合结果的着力点。

浅探非煤产业可持续发展之路

针对煤矿资源日趋衰竭和产业面临必须转型的现状,通过倾向发展非煤产业,进行产业结构调整,充分利用采矿衍生物,大力推进循环经济建设,延伸以煤为基础的产业链,促进非煤产业可持续发展。

论区域经济的非均衡可持续发展战略

为实现区域经济的可持续发展,我国区域经济的发展应跳出平衡发展和不平衡发展战略的传统理论框架,走非均衡可持续发展的道路。非均衡可持续发展战略既不同于平衡发展战略,也不同于不平衡发展战略,它是两者优点的结合,是我国现阶段区域经济发展战略的最佳选择。

Controlling effects of forest belts on non-point source pollution of agricultural lands in Taihu Lake area, China

Taihu Lake area is one of the most developed areas in agricultural production. Application of fertilizers and pesticides in large quantities greatly aggravate environmental pollution of this area, and water pollution has worsened to an unbearable condition. Two sampling farms (respectively 1 hm2) under rape-rice rotation and wheat-rice rotation were selected as studied ecosystem and a 5-yr-old Poplar forest and 8-yr-old Metasequoia forest were chosen in the selected areas. By collecting samples of Nitrogen, Phosphorus in water, crops and underground of forest, the transfer and loss of N and P (main water pollutants) in faming ecosystem were studied, and the effects of forest belts on non-point source pollution of agricultural lands was analyzed. The results indicated that the transfer and loss of N and P vary with means of rotation, types of crops and the amount of fertilizer application. Buffering forest belts betweens farmlands and ditches can effectively stop and purify such elements as N and P in soil runoffs, thus controlling non-point source pollution of agricultural lands. When the width ratio of farmland to forest belt is 100 to 40, 50.05% losing N, 29.37% losing P can be absorbed by forest under rape-rice rotation and 30.98% N, 86.73% P can be absorbed by forest under wheat-rice rotation. When the width ratio of farmland to forest belt is 150 to 40, 33.37% losing N, 19.58% losing P can be absorbed by the forest under rape-rice rotation, and under wheat-rice rotation 20.65% lost N and 57.82% lost P can be absorbed. There is only some purification effect when the width ration of farmland to forest belt is 200 to 40. Based on model of buffering forest belts, the width ratio of farmland to forest is determined between 100 to 40 and 150 to 40, because it not only can purify water, but also occupy less farmland. It is suggested that Poplars, with the characteristics of fast-growing and high value, are suitable to be planted as shelter-forest in Taihu Lake Watershed.

Challenges and new insights for exploitation of deep underground metal mineral resources

Long-term and continuous large-scale exploitation has increasingly exhausted shallow metal mineral resources,and deep mining has become inevitable.The current global status of deep mining of metal mineral resources was presented,a series of engineering challenges faced by deep mining were systematically analyzed,and some progress and future innovation focus in key engineering technologies,such as the prediction and prevention of rockburst,cooling techniques,rock support techniques,deep hoisting techniques,and several nontraditional deep mining techniques,were highlighted.Meanwhile,new insights into development strategies of deep mining technology were proposed.The integration of these forward-looking key innovative technologies will form the overall framework of an innovative technology system for the deep mining of metal minerals.This technology system will help to achieve safe,efficient,and green exploitation of deep underground metal mineral resources and ensure the sustainable development of the metal mining industry.

Non-coordination in China′s Urbanization: Assessment and Affecting Factors

Urbanization is a comprehensive concept, a trinity process that population urbanization, economic urbanization and space urbanization, is based on the interactions and mutual influences among the in which, people are the central and leading players in this process, while economic activities serve as the driving force and space is the carrier-the physical or material setting as well as the product. So the coordination among these processes is crucial for a country or region＇s sustainable development. China is experiencing rapid growth of cities and a surge in urban population, with the basic national condition of many people and little land, which calls for a systematic study of the issue of coordinated urbanization from theoretical, methodological and practical perspectives. Based on the concept of urbanization and non-coordination of urbanization, this article built a quantitative method to identify and evaluate the urbanization and non-coordination of urbanization, and made an empirical analysis in China between 2000 and 2008. The results show that the non-coordination overall level of China＇s urbanization declined during the study period, because population urbanization, economic urbanization, and space urbanization exhibited different trajectories of change. This study also reveals that performance assessment system, household registration system, and urban land expropriation system, etc., are the main affecting factors. At the end, we put forward some suggestions to achieve sustainable development of China＇s urbanization from the aspects of improving the local government＇s obiective function, imolementing the urban plalming svstem, enforcing public particination asnects and so on.

Remote Sensing and Landscapes in Sahelian Africa

For decades, Africa has undergone many crisis, affecting economy, climate, food, politics as well as society with irreparable consequences on the environment. The protection of the latter, being one of the cornerstones of sustainable development, is only possible if it＇s based on a reliable and rigorous diagnosis and inventory. This study suggests a method to characterize natural resources, in particular agricultural ones, by showing their landscape context. In this perspective and in the absence of any pre-existing mapping, as it is often the case in Africa, this work provides a simple and reproducible approach that merely uses Landsat Thematic Mapper （TM） （free） images, with the only constraint of the cross-checking of several images at different times of the plant cycle.

Practice and Research Progress on Ecosystem Conservation in Transboundary Areas

Many ecosystems extend across national or political boundaries. The consistent and effective protection of these ecosystems in transboundary areas(ETAs) is an important global research focus. Previous research on the protection of such areas can be categorized into seven themes: 1) ecological conservation of a single ETA; 2) investigation of the effects of a single conservation measure on a specific ETA; 3) determination of species-level effects due to ETA conservation; 4) comparison of the same protection measures between different ETAs; 5) introduction of a single conservation measure to a specific ETA; 6) understanding the relationship between conservation and sustainable development; and 7) generalization across multiple ETA conservation cases. The protection of ETAs involves various considerations, including funding support, demand and will for collaboration, community and public participation, historical and cultural factors, political backgrounds, uniqueness of biological resources, formulation of laws and regulations, founding of specialized administrative departments, non-governmental organizations, and fairness. Here, we briefly explain the research themes and considerations related to ETA conservation. The most important finding is that most major research themes do not focus on the challenges of ETA conservation. We use two nature reserves located between China and North Korea as examples to identify specific ways to improve ETA conservation on Changbai Mountains. The efficiency of ETA administration still remains low. The study of ETA conservation should focus on concrete regional information and aim to improve existing measures through the accumulation of experience.

Sustainabilty of Rice Processing in Rural Sub-Saharan Africa

Energy and environmental sustainability are important considerations for increased rice production. This study examined the energy utilization and sustainability of rice processing in sub-Saharan Africa. The community of Gadan Loko village in the song local government of Adamawa State, Nigeria was selected as the focus of study. Rice parboiling, the most energy intensive process in rice processing is carried out usually by women in small quantities of about 13.2 kg using traditional pots on tripod support stoves. The parboiled rice is sun dried on mats before it is taken to the milling stalls where it is milled using milling machines driven by single cylinder diesel engines. There were large variations in the quality of milled rice due to lack of consistency in processing parameters. Accumulation of rice husk in the community created important environmental issues. In this study, methods of improving sustainability of rice processing were investigated. The areas included： the utilization of waste heat from the diesel engines for improved drying and efficient pre-soaking; the utilization of solar energy for pre-soaking; the utilization of rice husks as alternative fuel to firewood; and the optimization and redesign of the stoves and parboiling vessels to minimize heat loss to the environment. The results showed that the utilization of rice husk as alternative fuel and the redesign of the stoves and parboiling vessels will increase the sustainability of rice processing and can be easily adopted by the community. While solar energy pre-soaking was not economical and the utilization of waste heat from the diesel engines for drying and pre-soaking would be difficult to implement at the rural scale, because most of the parboiling is done far away from the milling stalls. The study showed that research, development of appropriate technology, and education （RATE） of the rural community is an important way of increasing sustainability.

NGO Accountability and Sustainable Development in Nigeria

This paper empirically investigates the type of and for whom NGO Accountability is practised in Nigeria with a view to enhancing sustainable development in the country. In-depth interviews on accountability related issues were conducted with managers of an international and a national NGO from Lagos State of Nigeria. The interview was supported by content review of accounts and reports of the selected NGOs. The findings of this study represent a hierarchical conception of accountability privileging a narrow range of stakeholders, which is short-term in focus and not strategic. The findings are situated in the context of what the literature says about NGO Accountability. This work could enhance the frontier of knowledge in NGO Accountability especially in a developing country like Nigeria.

Research on the Phase Change Solar Energy Fresh Air Thermal Storage System

In this article, a new kind of solar fresh air system is designed in order to realize the improvement of thermal efficiency by the integrated application of the PCMs and heat pipe technology. Under the adequate sunshine condition, the fresh air is directly delivered into the indoor environment after being heated by the solar collector. When the sun radiation is reduced, the heated air temperature can not satisfy the need of supply of air temperature.The main heat source is changed to phase change heat storage equipment instead of solar energy. The system adopt heat pipe for a high-efficiency and isothermal heat transfer which recover the shortcomings of PCMs such as： low coefficient of thermal conductivity and poor thermal efficiency. This article establishes the physical model of phase change solar energy fresh air thermal storage system and creates the mathematical model of its unsteady heat transfer to simulate and analyse the operation process by using Fluent software. The results of the study show that, compared to normal fresh air system, the phase change solar energy fresh air thermal storage system has a significant improvement in energy saving and indoor comfort level and will play an important role in the energy sustainable development.

Coordinated Urban and Rural Development in Yiling

YILING,the largest district in Yichang City,Hubei Province,is noted for its non-metallic mines,tea planting,citrus fruit cultivation,and folk art.In recent years,Yiling＇s focus has been on urban-rural integration.Human Development The strategies of Yiling District include inheriting traditional culture and ensuring sustained development.

Promoting the Nexus Approach of Climate, Ecosystems and Livelihoods in Africa through China-Africa Cooperation

Africa is facing both challenges and opportunities in pursuing sustainability. The nexus approach of Climate, Ecosystems and Livelihoods（CEL） is a promising way to seize the ＂power of integration＂ for achieving sustainability of the African continent. Based on taking stock of the work of various organizations especially the United Nations Environment Programme International Ecosystem Management Partnership（UNEP-IEMP） in the Africa, this article explores the demands and opportunities for delivering the CEL approach in Africa and provides perspectives on how to promote it in the framework of China-Africa cooperation in future. It concludes that Africa is one of the focal regions in the delivery of the CEL nexus approach; UNEP-IEMP has launched several major initiatives that lay the foundation for delivering the nexus approach of CEL in Africa; however, more ambitious cooperation should be taken through a broad China-Africa partnership, based on existing institutions, networks and ongoing programmes in both Africa and China, to support future China-Africa cooperation on the nexus approach of CEL.

The Strategic Implications of China-Nigeria Economic Relations

The paper argues that the rise of China may well be the most significant trend today redefining the geopolitics of Asia and the world beyond. However, economic, political, and security cooperation between China and Nigeria has grown exponentially in the last decades, presenting new opportunities and challenges for Nigeria and Africa as whole. Essentially, this significant development about China has been linked to its ＂opening-up policy,＂ which has taken effect since the 1980s. The contemporary waves of diplomatic relations between China and Nigeria appear to be mutually beneficial to a reasonable extent. China views Nigeria as a gateway to the West African region, which has become a key focus of China＇s trade and economic strategy in Africa. More interestingly, the past four decades have been a critical period for Chinese people to seek harmonious, scientific, and sustainable development at home and strengthen cooperation and embrace globalization with the outside world. Nigeria, like many other African countries, has gratitude in counting China as one of its friends in the global village. The year 2013 marks the 42na anniversary of the establishment of diplomatic relations between the People＇s Republic of China and the Federal Republic of Nigeria. These bilateral ties have witnessed sustained, rapid and unprecedented development. Based on the principles of equality and mutual benefit, respect and trust, especially under the framework of the Forum on China-Africa Cooperation known as FOCAC, China and Nigeria have enjoyed fruitful cooperation in economy, trade, investment, human resources development, and cultural exchanges and coordination in international affairs. This study looks into this great relationship and tries to outline the path that leads into the future.