首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
Book Reviews     
Book reviewed in this article:
Farm Appraisal and Valuation, Sixth Edition: Wm. G. Murray, D. G. Harris, G. A. Miller, N. S. Thompson
Prospects for Soviet Agriculture in the 1980s: by 0. Gale Johnson and Karen McConnell Brooks
R&D, Patents and Productivity: edited by Zri Grilickes
The Economics of Production: by B. R. Beattie, C. R. Taylor
Issues and Challenges for OECD Agriculture in the 1980s
Planning and Decision in Agribusiness: Principles and Experiences: edited by Claus-H. Hanf and Gerhard W. Schiefer
Resource Allocation to Agricultural Research: Edited by Douglas Daniels and Barry Nestel
International Trade 1983/84: GATT
Managing Agricultural Systems: by G. E. Dalton
Potatoes for the Developing World: Lima  相似文献   

2.
Book Reviews     
Book reviewed in this article:
Econometric Methods, Third Edition: by J. Johnston
Forest and Watershed Development and Conservation in Asia and the Pacific Edited by Lawrence S. Hamilton Boulder
The Manitoba Conmercial Freshwater Fishery: An Economic Analysis : Gordon S. Gislason, James A. Macmillan and Jack W. Craven
Policy Options for the Grain Economy of the European Community: Implications for Developing Countries: by Ulrish Koester
Food Security for Developing Countries Edited by Alberto Valdes A Westview Special Study Boulder
Agriculture 2000: A Look at the Future: by Battelle Memorial
Of Time and Enterprise: North American Family Farm Management in a Context of Resource Marginality: by John W. Bennett  相似文献   

3.
长江口潮滩表层样中分级磷的时空变化   总被引:2,自引:0,他引:2  
长江河口表层沉积物中各种形态的磷,虽然都是以钙磷有机磷为主,但是,在不同的地点,各种形态的磷随着上覆水的盐度、pH、沉积物的粒度及有机质含量等物理化学性质的不同,都会呈现出一定的变化:可吸附态磷大致为顾路>寅阳>溆浦>崇明东滩;铝磷则是顾路>溆浦>寅阳>崇明东滩;铁磷是顾路>溆浦>寅阳>崇明东滩;钙磷则崇明东滩>溆浦>寅阳>顾路;有机磷是顾路>溆浦>寅阳>崇明东滩;不同季节各点的变化有规律性:可吸附态磷在春季最高,铝磷也基本如此,铁磷则是秋季最高,钙磷变化性不大,有机磷则表现出冬春季节较高的规律。  相似文献   

4.
Book Reviews     
Books reviewed:
Joan Martinez-Alier, The Environmentalism of the Poor: A Study of Ecological Conflicts and Valuation
Julie Guthman, Agrarian Dreams: The Paradox of Organic Farming in California
Paul Richards (ed.), No Peace No War: An Anthropology of Contemporary Armed Conflicts
Emmanuel Krieke, Re-creating Eden: Land Use, Environment, and Society in Southern Angola and Northern Namibia
Neil J. Melvin, Soviet Power and the Countryside: Policy Innovation and Institutional Decay
Rachel Waterhouse and Carin Vijfhuizen, eds, Strategic Women and Gainful Men: Gender, Land and Natural Resources in Different Rural Contexts in Mozambique  相似文献   

5.
Book Reviews     
Book reviewed in this article: Working the Range: Essays on the History of Western Land Management and the Environment: Edited by John R. Wunder Agricultural Project Management: Monitoring and Control of Implementation Farming for Farmers? U. S. Agricultural Policy: The 1985 Farm Leglslatlon: Bruce L. Cardner, editor American Enterprise Institute Transportation Models for Agricultural Products: Edited by Won W. Koo and Donald W. Larson Westview Special Studies in Agriculture Science and Policy 1986  相似文献   

6.
Book Reviews     
Book reviewed in this article:
Successful Agribusiness Management: Edited by John Freivalds Brookfield
Introduction to Agricultural Economics: by John Penson
Agricultural Production Economics: by David L. Debertin
Agricultural Development in Bangladech: by E. Boyd Wennergren, Charles H. Antholt, and Morris D. Whitaker Boulder  相似文献   

7.
REVIEWS     
Book reviews in this article: BOURKE, A. (ed. Hill, J. and ÓGráda, C.) (1993). The Visitation of God? - The Potato and the Great Irish Famine BUSCH, L., LACY, W. B., BURKHARDT, J. and LACY, L. R. (1991). Plants, Power and Profit: Social, Economic and Ethical Consequences of the New Biotechnologies CONSTANZA, R. (ed.) (1991). Ecological Economics: The Science and Management of Sustainability FOSTER, P. (1992). The World Food Problem: Tackling the Causes of Undernutrition in the Third World FRIMPONG-ANSAH, J. H. (1991). The Vampire State in Africa: The Political Economy of Decline in Ghana HERMANN, R., BURGER, K. and SMITH, P. (1993). International Commodity Policy: A Quantitative Analysis LORRAIM-SMITH, R. (1993). Computers in Forestry: Use of Spreadsheets. Taunton: Research Studies Press and Chichester: James Wiley NOBLE, D. H. and COURSE, C. (1993). Spreadsheets for Agriculture. Harlow, Essex, UK: Longman Scientific and Technical ANDERSON, J. R. and DE HAAN, C. (eds.) (1992). Public and Private Roles in Agricultural Development: Proceedings of the Twelfth Agricultural Sector Symposium BELLAMY, M. and GREENSHIELDS, B. (eds.) (1992). Issues in Agricultural Development: Sustainability and Cooperation. International Association of Agricultural Economists Occasional Paper No. 6. Aldershot GILES, A. K. (1993). The Provincial Agricultural Economics Service 1945–1968: Its Origins, Form, Demise and Legacy HILL, P., GREEN, B. and EDWARDS, A. (1992). The Costs of Care: The Costs and Benefits of Environmentally Friendly Farming Practices MILLER, F. A. (ed). (1993). Eastern Europe: Opportunities and Needs for Food and Agriculture. CAS Paper 27 OECD (1993) Agricultural and Environmental Policy Integration: Recent Progress and New Directions. Paris: Organisation for Economic Co-operation and Development OECD (1993) Agricultural Policies, Markets and Trade: Monitoring and Outlook 1993. Paris: Organisation for Economic Co-operation and Development  相似文献   

8.
[目的]明晰干旱半干旱区耕地水资源短缺的时空变化特征及驱动因素,是实现区域水资源可持续利用的首要前提,对保障区域乃至全国粮食安全和生态健康有着重要意义。[方法]文章以内蒙古为典型研究区,以水足迹理论为依据,通过构建耕地水资源短缺指数(Arable Land Water Scarcity Index,AWSI),分析2000—2018年内蒙古耕地水资源短缺指数时空格局及变化特征,并进一步借助地理探测器模型定量揭示研究区内气候、植被、地形、人口密度等11个自然和社会经济因素对耕地水资源短缺时空变化的影响差异。[结果](1)内蒙古耕地水资源短缺指数总体呈西高东低的分布特征,西部耕地缺水压力较大。2000—2018年内蒙古耕地水资源短缺指数呈增加趋势,增加区域占总面积82%以上,主要分布在东部和中部地区。(2)自然因素主要决定内蒙古耕地水资源短缺的空间格局,其影响明显大于社会经济因素,但是2000—2018年社会经济因素的影响力在呈增大趋势。(3)自然因素中以蒸发量、年均温、降水量为主的气候因子在生态探测中共有19组显著差异,占据了影响因子中的主导地位。而在社会经济因素与自然因素的交互作用下,...  相似文献   

9.
Book Reviews     
Books reviewed:
Ian Phimister, Violence and Memory: One Hundred Years in the 'Dark Forests' of Matabeleland
Dagfinn Gatu, Social and Political Change in Revolutionary China: The Taihang Base Area in the War of Resistance to Japan, 1937–1945
Marc Blecher, Sources of Chinese Economic Growth 1978–1996
Louise Fortmann, Modern Forests: Statemaking and Environmental Change in Colonial Eastern India
Frank Dikötter, Revolutionizing the Family: Politics, Love, and Divorce in Urban and Rural China, 1949–1968
Ben Fine, The World Bank: Structure and Policies
Jonathan Pincus, Economic Transition in Vietnam: Trade and Aid in the Demise of Centrally Planned Economy
Vivek Chibber, An Agrarian History of South Asia, The New Cambridge History of India, IV, 4  相似文献   

10.
Book Reviews     
Book reviewed in this article: Linear Programming and Animal Nutrition: by J. B. Dent and H. Casey Free Bread for Everyman: by Peter Harsany Agricultural Development and Economic Growth: by Herman M. Southworth and Bruce F. Johnston (eds.) Agriculture and Nigerian Economic Development: by H. A. Oluwasanmi Intermediate Economic Statistics: by Karl A. Fox, John Wiley & Sons, Inc. Ray A. Goldberg, Agribusiness Co-Ordination: A Systems Approach to the Wheat, Soybean, and Florida Orange Economics Economics of Food Retailing: by Daniel I. Padberg Atlantic Agricultural Unity: Is It Possible?: by John O. Coppock  相似文献   

11.
Book Reviews     
Books reviewed:
Ray Bush, Class, State and Agricultural Productivity in Egypt: Study of the Inverse Relationship between Farm Size and Land Productivity
Ray Bush, Rural Labor Movements in Egypt and their Impact on the State, 1961–1992
M. E. Bratchel, Creating the Florentine State: Peasants and Rebellion, 1348–1434
Subir Sinha, Democracy at Work in an Indian Industrial Cooperative: The Story of Kerala Dinesh Beedi
Samuel K. Cohn Jr, Community and Clientele in Twelfth-Century Tuscany: The Origins of the Rural Commune in the Plain of Lucca
Liana Vardi, Fraternity Among the French Peasantry: Sociability and Voluntary Associations in the Loire Valley, 1815–1914
Jonathan Pattenden, Peasants Against Globalization: Rural Social Movements in Costa Rica  相似文献   

12.
BOOK REVIEWS     
Book reviewed in this article:
Economic Development of Tropical Agriculture.: Edited by W.W. McPherson
Economics of Outdoor Recreation.: By Marion Clawson and Jack L. Knetsch, Baltimore: Resources for the Future, Inc.
The People Left Behind: A Report by the President's National Advisory Commission on Rural Poverty, Washington, D.C., U. S. Government Printing Office, 1967
Pollution, Property and Prices: An Essay in Policy-Making and Economics.: by J. H. Dales.
The Report of the Committee Appointed to Inquire into and Report upon the Pollution of Air, Soil and Water.  相似文献   

13.
BOOK REVIEWS     
Book reviewed in this article: Instability in Indian Foodgrain Production by Peter B. R. Hazell Water and Agriculture in the Western U.S.: Conservation, Reallocation and Markets Edited by Gary D. Weatherford Competition for California Water: Alternative Resolutions Edited by Ernest A. Engelbert Food for One Billion: China's Agriculture since 1949 by Robert C. Hsu Westview Growth and Equality in Rural China by Keith Griffin and Ashwani Saith The Cropland Crises: Myth or Reality? Edited by Pierre R. Crosson Baltimore Our Own Resources: Cooperatives and Community Economic Development in Rural Canada by Roger Clarke Langholm  相似文献   

14.
Reviews     
Book reviewed in this article: Gaull , G. E. and Goldberg , R. A. (eds.) (1993) Geping , Q. and JINCHANG, L. Murray, M. and Greer, J. (eds.) (1993). Rural Development in Ireland. Aldershot: Avebury (Gower). BRIEF NOTES: Cook , E. and Hill , BRIEF NOTES: Desai , B. M. and Mellor , J. W. (1993). BRIEF NOTES: Kettunen , L. and Niemi , J. (1994). BRIEF NOTES: OECD (1994). Agricultural Policies, Markets and Trade: Monitoring and Outlook 1994. BRIEF NOTES: Richards , S. (1993). Wye College and its World: A Centenary History.  相似文献   

15.
Based on Chinese county-level statistic data, this paper reveals spatial–temporal distribution and changing of grain production, by studying gravity centres of grain input–output regions in China from 1985 to 2009. According to the grain output, per-capita grain consumption, and population, the surplus grain of 2864 counties from 1985 to 2009 was calculated. And the counties with surplus grain value greater than zero and smaller than zero were respectively defined as grain input regions and grain output regions; they were respectively analysed by using the model of grain gravity centre. We found that there are four periods of spatial–temporal changing of gravity centres in grain input regions, and five periods in all output regions. According to the moving path of the gravity centres of input–output regions, 1990 was the turning point of completely entering into ‘grain supply from north to south period’. Spatial–temporal changing of grain-sown area and the arable land was the main driving mechanism for the shift in grain input–output gravity centres. The change of spatial pattern of grain production influenced sustainability of grain production from three impacts. And two policy suggestions are put forward to promote the sustainability of grain production.

HIGHLIGHTS

Use the method of gravity centres to research the spatial–temporal changing of surplus grain from 1985 to 2009 in China.

Analyse the spatial–temporal changing and the driving mechanism of gravity centres of grain input–output from 1985 to 2009 in China.

1990 was identified as the turning point of completely entering into ‘grain supply from north to south period’.

Summarize the impact of the changes of spatial pattern of grain production on the sustainability of grain production and put forward two proposals.  相似文献   


16.
Book Reviews     
Books reviewed:
Jairus Banaji, Agrarian Change in Late Antiquity:Gold,Labour and Aristocratic Dominance
Richard Franklin Bensel, The Political Economy of American Industrialization,1877 -1900
Roy Hora, The Landowners of the Argentine Pampas:A Social and Political History 1860 -1940
Jonathan Unger, The Transformation of Rural China
Ellen Meiksins, The Origin of Capitalism:A Longer View
Ondine Barrow and Michael Jennings (ed.), The Charitable Impulse: NGOs and Development in East and North-East Africa
Enrique Mayer, The Articulated Peasant:Household Economies in the Andes
Frank Muhereza and Peter Otim, Pastoral Resource Competition in Uganda:Case Studies into Commercial Livestock Ranching and Pastoral Institutions
Camilla Toulmin, Philippe Lavigne Delville and Samba Traoré (eds.), The Dynamics of Resource Tenure in West Africa  相似文献   

17.
Book Reviews     
Books reviewed:
Vivek Chibber, Locked in Place. State-Building and Late Industrialization in India
Roger G. Kennedy, Mr. Jefferson's Lost Cause: Land, Farmers, Slavery and the Louisiana Purchase
Kenneth M. Bauer, High Frontiers. Dolpo and the Changing World of Himalayan Pastoralists
Ezekiel Gebissa, Leaf of Allah: Khat and Agricultural Transformation in Harerge Ethiopia 1875–1991
Michael Kevane, Women and Development in Africa: How Gender Works
Katherine Verdery, The Vanishing Hectare: Property and Value in Postsocialist Transylvania  相似文献   

18.
REVIEWS     
Book reviewed in this article: Understanding Green Revolutions: Agrarian Change and Development Planning in South Asia. Edited by TIM-BAYLTSS-SMITH and SUDHTR WANMALIC Family, Servants and Vkitors: The Farm Household in Nineteenth and Twentieth Century Devon. By MARY BOUQUET Food Economics. By ANNAB URGERA The Economics of Coffce. By J de GRAFF Agricultural Gco ra hy:A Social and Economic Analysis. By BRIAN W. ILBERY Countryside Conjlicrs: The Politics of Farming, Forestry and Conservation. By PHILIP LOWE Food Policy: Frameworks for Analysis and Action. Edited by CHARLES K. MANN and BARBARA HUDDLESTON Agricultural Change and Rural Poverty: Variations on a Theme by Dharm Narain. Edited by JOHN W. MELLOR and GUNVANT M. DESAI  相似文献   

19.
Book Reviews     
Book reviewed in this article:
Implications of Tractorisation for Farm Employment: Productivity and Income by the National Council of Applied Economic Research.
Producers' Associations for Marketing Farm Products Compiled by the Asian Productivity Organization. Proceedings of APO symposium, Tokyo, October, 1979. Tokyo: APO, 1981.
The Splintered Market: Barriers to Inter-provincial Trade in Canadian Agriculture by R. E. Haack, D. R. Hughes and R. G. Shapiro Ottawa: Canadian Institute for Economic Policy, 1981.
AMUL: An Experiment in Rural Economic Development by S. P. Singh and Paul L. Kelley New Delhi: MacMillan India Ltd., 1981. 180 pp. (Rs. 75.00)
Research in Domestic and International Agribusiness Management Edited by Ray A. Goldberg. 2 vol. Greenwich, Conn.: JAI Press Inc., 1980 and 1981. 228 + 137 pp.  相似文献   

20.
Book Reviews     
Book reviewed in this article:
Food Subsidies in Egypt: Their Impact on Foreign Exchange and Trade by Grant M. Scobie Washington, D.C.: International Food Policy Research Institute, August 1983, 67 pp
The Agricultural Marketing System by V. James R. Rhodes. 2nd edition. Toronto: John Wiley & Sons, 1983. 557 pp
Canadian Income Tax Policy — An Economic Evaluation by Vladimir Salyzyn Don Mills, Ontario: CCH Canadian Limited, 1981. 251 pp.
Agricultural and Food Policy by Ronald D. Knutson, J. B. Penn and William T. Boehm Englewood Cliffs, N.J.: Prentice-Hall, 1983. 379 pp.
The Economics of Environmental and Natural Resources Policy Edited by John A. Butlin Boulder, Colorado: Westview Press, 1981. 206 pp.
Railroads and Land Grant Policy: A Study in Government Intervention by Lloyd J. Mercer New York: Academic Press, 1982. 268 pp.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号