首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   74篇
  免费   0篇
废物处理   4篇
环保管理   21篇
综合类   15篇
基础理论   18篇
污染及防治   8篇
评价与监测   2篇
社会与环境   6篇
  2023年   1篇
  2021年   4篇
  2020年   4篇
  2019年   1篇
  2017年   2篇
  2016年   2篇
  2015年   1篇
  2011年   1篇
  2009年   4篇
  2008年   6篇
  2007年   5篇
  2006年   4篇
  2005年   1篇
  2004年   3篇
  2003年   1篇
  2001年   2篇
  2000年   1篇
  1999年   1篇
  1997年   3篇
  1996年   1篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1990年   3篇
  1989年   3篇
  1988年   1篇
  1987年   2篇
  1986年   1篇
  1985年   1篇
  1984年   2篇
  1982年   1篇
  1979年   2篇
  1975年   2篇
  1974年   2篇
  1973年   1篇
排序方式: 共有74条查询结果,搜索用时 93 毫秒
21.
22.
23.
We use the contingent valuation method to measure the amount citizens are willing to pay to improve scenic mountain-view amenities through the removal of billboards. Our approach addresses both the perceived property rights as well as the perceptions of the status quo in the southern Appalachian Mountains. We find that individuals who retire to the mountains have different preferences for land use and mountain views than individuals who have ancestors who lived in Watauga County. In the aggregate, we find that citizens are willing to pay almost one-half million dollars to remove billboards from Watauga County roadsides. This study provides insights to the debate surrounding land use along public roads.  相似文献   
24.
25.
Reviews     
REGIONAL PLANNING: A COMPREHENSIVE VIEW

JEREMY ALDEN and ROBERT MORGAN

Leonard Hill Books, Intertext, London, 1974. £6.

MAN‐MADE FUTURES: READINGS IN SOCIETY, TECHNOLOGY AND DESIGN

NIGEL CROSS, DAVID ELLIOTT and ROBIN ROY (EDS.)

Hutchinson Educational in association with Open University Press, London, 1974. 365 pp., cased £5, paperback £2.75.

CITY OF BIRMINGHAM STRUCTURE PLAN: WRITTEN STATEMENT

NEVILLE BORG (City Engineer)

City of Birmingham, 1973.

DESIGNING FOR HUMAN BEHAVIOUR: ARCHITECTURE AND THE BEHAVIOURAL SCIENCES

(Community Development Series. Series Editor, Richard P. Dober.)

JON LANG, CHARLES BURNETTE, WALTER MOLESKI and DAVID VACHON (EDS.)

Dowden, Hutchinson & Ross, Inc., Stroudsburg, Pa., 1974. 352 pp., S20 (U.K. price not stated).

THE BOOK OF GARDEN ORNAMENT

PETER HUNT (ED.)

J. M. Dent & Co., London, 1974. £9.75.

AMENITY AND URBAN PLANNING

DAVID L. SMITH

Crosby Lockwood Staples, London, 1974. 198 pp. £4.50.  相似文献   

26.
Book reviews     
ANALYTICAL PLANNING: THE ORGANISATION OF SYSTEMS

Thomas L. Saaty and Kevin P. Kearns

Pergamon Press, 1985. Price: U.S. $40.00, U.K. £29.50.

THE GEOGRAPHER AT WORK

Peter Gould

Routledge and Kegan Paul, London 1985’ Price: £8.95.

UTOPIA ON TRIAL

Alice Colman

Hilary Shipman Ltd., 19 Framfield Road, Highbury, London. May 1985 (reprinted August, 1985). Price: £7.95.

SIR RAYMOND UNWIN: ARCHITECT, PLANNER AND VISIONARY

Frank Jackson

A. Zwemmer Ltd., London 1985. 187 pp. with maps and illustrations.

STRATEGIC PLANNING IN ACTION: THE IMPACT OF THE CLYDE VALLEY REGIONAL PLAN 1946–1982

R. Smith and U. Wannop (eds)

Gower, 1985, 272 pp. Price: £16.50.

LOCALITIES, CLASS AND GENDER

The Lancaster Regionalism Group (Linda Murgatroyd, Mike Savage, Dan Shapiro, John Urry, Sylvia Walby, Alan Warde, with Jane Mark‐Lawson)

Pion Ltd., 1985. Price: £12.00.  相似文献   

27.
Summary Associations among female sperm whales, Physeter macrocephalus, and their dependent offspring, off the Galapagos Islands were studied between 1985 and 1989. The whales were found in groups containing about 23 individuals, with each individual having approximately 12 constant (over years) companions. These permanent units associated with one another for periods of 6.5 days, although the rate and duration of these associations seemed to vary between years, perhaps because of differences in the food supply. The principal function of the closed units may be care of the offspring, and units in the same general area may derive benefit from feeding in a coordinated manner.Offprint requests to: H. Whitehead  相似文献   
28.
29.
Book reviews     
ENGLISH STRUCTURE PLANNING

Eds: D. T. Cross and M. R. Bristow

Pion Ltd., London, 1983. £16.00.

AN INTRODUCTION TO URBAN RENEWAL

Michael S. Gibson and Michael J. Longstaff

London: Hutchinson, 1982. 384 pp.

INTEGRATED URBAN MODELS

S. H. Putman

Pion Ltd., 1983, 332 pp.

EXPLANATION PREDICTION AND PLANNING: THE LOWRY MODEL

M. T. Webber

Pion Ltd., London, 1984, 214 pp.

THE GOVERNMENT AND ADMINISTRATION OF METROPOLITAN AREAS IN WESTERN DEMOCRACIES

Alan Norton

Institute of Local Government Studies, University of Birmingham, 1983, 57 pp.

THE MANAGEMENT OF SEMI‐NATURAL WOODLAND

County Planning Officers’ Society (available from Hampshire County Planning Dept., price £2.00).  相似文献   

30.
The distribution and transformations of iodine in the environment   总被引:1,自引:0,他引:1  
Iodine in the atmosphere is derived largely from seawater. It is probable that the biological production of methyl iodide is important in this transfer. Subsequent photolytic dissociation and oxidation of the methyl iodide, together with other inputs, with partial sorption of the products by aerosols, results in the atmospheric iodine being distributed between various gaseous and particulate forms. Atmospheric iodine is the major source of the iodine in soils, and the process of enrichment continues throughout soil formation and development until ultimately an equilibrium concentration is attained. The retention of iodine in soils is due mainly to the organic matter and hydrous oxides of iron and aluminum. In humid areas, only small proportions of the total soil iodine are soluble in water or available for uptake by plants. The atmosphere is also a direct source of iodine for plants, and in some situations may be more important than the soil. Iodine may be lost from soils by leaching, volatilization, and removal in crops, but the magnitude of these processes is difficult to assess. However, the amounts of iodine reported in groundwaters, and in rivers and lakes remote from human activity, suggest that some leaching of iodine is widespread. Increased amounts of iodine occur in rivers receiving effluent from sewage works. Milk and milk products are now major dietary sources of iodine because their content is often increased by concentrate feedingstuffs supplemented with iodine and/or by the use in dairies of iodophor detergents and sterilants.  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