技术创新与可持续发展

“技术创新”、“可持续发展”是当今报刊、话语中使用频率较高的两个词，然而，对于二者之间的关系问题，人们却谈论较少。当前，西方出现了一股反科学主义浪潮，甚至有人提出“现代科学对地球上绝大多数人是惨无人道的，应回到自然经济中去”的主张，尽管它是对人们滥用...

林业保护发展工作探讨

林业作为我国的基础产业之一,长期以来,一直给我国带来巨大的经济效益。但是在带来经济效益的同时,也由于林业的不合理规划和乱砍滥伐,带来了很多问题,如沙尘暴、水土流失等,这都严重影响着我国林业的健康发展。因此维护林业系统的正常工作就是为了保护我国环境促进环境系统的优化,是我们的生活环境具备健康可持续发展的潜力。

Discussion on Sustainable Urbanization in Tibet

After 1995, Tibet entered the stage of accelerated urbanization. The large floating population fi＇om outside Tibet has become the driving force for urban expansion and the rising of urbanization rate. After analyzing the changes of urban functions and spatial structure of urban system in Tibet, this paper argues that before 1995 the urbanization in Tibet was mainly driven by administrative function, resulting in certain population migration, whereas in the past decade economic function has become the key factor accelerating urban expansion with the market mechanism creating large-scale inflow of population. The floating population-based urbanization and high population growth in the agricultural and pastoral areas of Tibet has promoted the regional economic prosperity, but exerted resources and environmental pressure and brought some problems for Tibetan culture protection at the same time. The conflicts and contradictions between urbanization and the sustainability of natural resources, environment and social development have been intensified. Addressing these problems, this paper proposes some countermeasures for improving the sustainability of Tibetan urbanization.

An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO2 emissions

The issues of reducing CO_2 emissions, sustainably utilizing natural mineral resources, and dealing with industrial waste offer challenges for sustainable development in energy and the environment. We propose an efficient methodology via the co-reaction of K-feldspar and phosphogypsum for the extraction of soluble potassium salts and recovery of SO_2 with reduced CO_2 emission and energy consumption. The results of characterization and reactivity evaluation indicated that the partial melting of K-feldspar and phosphogypsum in the hightemperature co-reaction significantly facilitated the reduction of phosphogypsum to SO_2 and the exchange of K^+(K-feldspar) with Ca^(2+)(CaSO_4 in phosphogypsum). The reaction parameters were systematically investigated with the highest sulfur recovery ratio of ~ 60% and K extraction ratio of ~ 87.7%. This novel methodology possesses an energy consumption reduction of ~ 28% and CO_2 emission reduction of ~ 55% comparing with the present typical commercial technologies for utilization of K-feldspar and the treatment of phosphogypsum.

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.

Impacts of Anthropogenic Stresses on Biodiversity： A Case Study of Lumbini, Nepal

Biodiversity conservation denotes the protection, management and utilization of resources available on or below the surface of the earth. The sustainability of biodiversity resources rely on the ecological balance. A sound planning based on ecological background and human needs provide successful management of natural resources. The study area, Lumbini harbors rich biodiversity and provide significant habitats for several species of birds, mammals, herpetofauna and fish. There are four major habitat types in Lumbini area-farmland, forest, grassland and wetland. The resources outside the Lumbini Development Trust and surrounding villages have already depleted due to excessive human interference in natural resources. Lumbini and its vicinity are rich in natural resources but poor in terms of infrastructure and delivery of services. The areas are losing natural wealth to pay for development. Rural areas around Lumbini are confronted with worsening poverty, ill health, illiteracy and continuing deterioration of natural ecosystems on which the local residents depend for their well-being. The only way to assure a safer and more prosperous future in Lumbini area is to deal with environment and development issues in a balanced manner. This research work attested that the local stakeholders feel ownership on people centered conservation.

Knowledge Economy-The Sustainable Development Economy

Reviewing evolution of natural resources utilization mode in different economic formation, the paper elaborates the meanings of knowledge economy, and points our that the cause of unsustainabte development is the acute contradiction between the taw of ecosystem and the law of economy. It also points out that the essence of sustainable development is the harmonious relation between economy and the ecosystem. Therefore. the resources allocation should be considered from the aspect of the market demand and the aspect of the supply of t he ecosystem. That is to say, firsthy, the scale and pace of economy growth must be adapted to the supply capability of the ecosystem under the current technology, Secondly, based on the supply ability of the ecosystem, we should make it clear how to make limited resources allocation attains equilibrium between market supply and demand. The paper clarifies that in the mode of knowledge economy; we may transform the way of economy growth, form optimum economy structure, change the base of resource supply, strengthen the supply capability of ecosystem expand the production-possibility frontier, and finally accomplish the eco-economy coordinated development through the innovation of institution and technology. The essence of sustainable development and the sustainable characteristics of knowledge economy that were discussed above determine that knowledge economy is an economy of sustainable development.

Rural Urban Sustainability in Malinalco, Mexico

Design of a rural-urban sustainable consists six small businesses that use appropriate technologies, human work and natural resources of the region. The six sustainable technological-economic activities will be localized in a single field, so, there is interaction between all activities and workers. The site also have to educate the surrounding communities to environmental issues. It is also a demonstration of how to improve the economic development of a region without damaging the environment. The proposal is to create a cooperative society with interested persons of the area and working groups for the six proposed technical and economic activities.

Natural Resources in Economies＇ Status Transition from ＇Periphery＇ to ＇Center ＇

This paper divides the history of global trade since 1000AD into three periods using Rahl Prebisch＇s center-periphery pattern and summarizes the effects of resource trade on periphery economies during each period. However, this paper argues that the resource curse paradox does not justify isolation between developing and developed countries. On the contrary, developing countries should be encouraged to integrate into the existing center-periphery pattern and achieve economic growth through resource trade. This paper supplements the existing literature＇s analysis of resource endowment＇s role in global trade and offers recommendations for resource-rich developing countries to avoid the resource curse, identify a viable path to development, and achieve sustainable development by harnessing natural resources more productively.

MSPA-based Collaborative Evaluation and Planning Governance of Territory and Natural Environment in Metropolitan Agglomerations-A Case Study of EGIDDZ in Yangtze River Delta

The intersection of environmental conservation and urban development has garnered global attention.This study aims to contribute to the theoretical foundation and policy recommendations for the collaborative governance of territory and the natural environment in metropolitan agglomerations.Employing a comprehensive Morphological Spatial Pattern Analysis(MSPA)approach,this research analyses and overlays various indicators,constructing an integrated evaluation system based on“natural resource management and conservation,land use,and ecological network assessment”.Our findings reveal that:(1)The overall collaborative degree between the spatial configuration and natural environment in the Ecological Green Integration Development Demonstration Zone(EGIDDZ)is relatively high and still needs improvement at the micro level.Notably,regions characterised by elevated synergy levels exhibit considerable spatial overlap with ecological green cores outlined in territorial planning.(2)The selection and distribution of land use patterns are pivotal factors influencing collaborative levels,with multiple land use types favouring enhanced collaboration.By exploring the interplay between metropolitan territory and the natural environment using MSPA,this study seeks to provide holistic evaluation methodologies and governance insights for advancing sustainable urban planning and development.

A review on trade-off analysis of ecosystem services for sustainable land-use management

Ecosystem services are substantial elements for human society. The central challenge to meet the human needs from ecosystems while sustain the Earth's life support systems makes it urgent to enhance efficient natural resource management for sustainable ecological and socioeconomic development. Trade-off analysis of ecosystem services can help to identify optimal decision points to balance the costs and benefits of the diverse human uses of ecosystems. In this sense, the aim of this paper is to provide key insights into ecosystem services trade-off analysis at different scales from a land use perspective, by comprehensively reviewing the trade-offs analysis tools and approaches that addressed in ecology, economics and other fields. The review will significantly contribute to future research on trade-off analysis to avoid inferior management options and offer a win-win solution based on comprehensive and efficient planning for interacting multiple ecosystem services.

Research Status and Future Trends of Natural Resources and Sustainable Development in China: Visual Analysis based on CiteSpace

As an important foundation for promoting social progress and economic development, natural resources play an important role in the sustainable development of cities. However, the increasing demand of human beings for natural resources has led to various ecological environmental problems, such as excessive population density, serious environmental pollution, the continuous decline of total natural resources and per capita resources, all of which have hindered sustainable development. Therefore, the study of natural resources and sustainable development has become the focus of many current scholars. In this paper, CiteSpace is used as an analysis tool to analyze the literature on natural resources and sustainable development over the past 20 years. First of all, this paper deeply analyzes the research status of this field in terms of academic research trends, authors and research institutions, co-occurrence of keywords, etc., and on this basis, it then deeply analyzes its evolutionary path and research hot spots in the past 20 years through keyword emergence. Finally, according to the visualization of the analysis results, the future development trends of this research field are speculated:(1) Grasp the current research focus;(2) Improve the research accuracy;(3) Enrich the theoretical system of research;and(4) Establish an interdisciplinary research system.