维普中文期刊产品整合服务
183篇 您的检索式:作者名="Ament"
    题名 作者 年代 出处 被引量
1Silvicultural alternatives to conventional even-aged forest man-agement-what limits global adoption?显示文摘Background: The development of forestry as a scientific and management discipline over the last two centuries has mainly emphasized intensive management operations focused on increased commodity production, mostly wood. This 'conventional' forest management approach has typically favored production of even-aged, single-species stands. While alternative management regimes have generally received less attention, this has been changing over the last three decades, especially in countries with developed economies. Reasons for this change include a combination of new information and concerns about the ecological consequences of intensive forestry practices and a willingness on the part of many forest owners and society to embrace a wider set of management objectives. Alternative silvicultural approaches are characterized by a set of fundamental principles, including avoidance of clearcutting, an emphasis on structural diversity and small-scale variability, deployment of mixed species with natural regeneration,and avoidance of intensive site-preparation methods.Methods: Our compilation of the authors' experiences and perspectives from various parts of the world aims to initiate a larger discussion concerning the constraints to and the potential of adopting alternative silvicultural practices.Results: The results suggest that a wider adoption of alternative silvicultural practices is currently hindered by a suite of ecological, economic, logistical, informational, cultural, and historical constraints. Individual contexts display their own unique combinations and relative significance of these constraints, and accordingly, targeted efforts, such as regulations and incentives, may help to overcome specific challenges.Conclusions: In a broader context, we propose that less emphases on strict applications of principles and on stand structures might provide additional flexibility and facilitate the adoption of alternative silvicultural regimes in a broader set of circumstances. At the same time, the acceptance of alternative silvicultural systems as the 'preferred or default mode of management' wil necessitate and benefit from the continued development of the scientific basis and valuation of a variety of ecosystem goods and services. This publication is aimed to further the discussion in this context.Klaus J Puettmann Scott McG Wilson Susan C Baker Pablo J Donoso Lars Dr?ssler Girma Amente Brian D Harvey Thomas Knoke Yuanchang Lu Susanna Nocentini Francis E Putz Toshiya Yoshida Jürgen Bauhus 2015Forest Ecosystems2015,2,2:4
2Cost-effectiveness analysis in relation to budgetary constraints and reallocative restrictions显示文摘Adang E Voordijk L Ament A 2005Health Policy2005,74,2:1
3Human erythrocytes enhance interferon- gamma production by human lymphocytes显示文摘Keyes L Liao MJ Ament T 1986Fed Proc1986,45,1:1
4Neoadjuvant chemotherapy in advanced ovarian carcinoma: on what do we agree and disagree? 显示文摘Vergote I du Bois Av Ament Fv et a1 2013Gynecol Onco)2013,128,1:1
5Median power frequency of the surface EMG and blood lactate in incremental cycle ergometry 显示文摘Jansen R Ament W Erkerke GJ 1997Eur J Appl Physioll1997,75,2:1
6A parallel precon- ditioned conjugate gradient solver for the Poisson problem on a multi-GPU显示文摘AMENT M KNITTEL G WEISKOPF D 2010Parallel distributed and network-based compu- ting2010,,6:1
7Economic evaluation in stroke research : a systematic review显示文摘Evers SM Ament AJ Blaauw G 2000Stroke2000,31,5:1
8Low blood and plasma carnitine levels in children receiving long-term parenteral nutrition显示文摘KA Dahlstrom ME Ament A Moukarzel 1990J Pediatr Gastroenterol Nutr1990,11,3:1
9Applications of metabolomics for understanding the action of peroxisome proliferator-activated receptors (PPARs) in diabetes,obesity and cancer显示文摘Ament Z Masoodi M Griffin JL 0,,:1
10Differential timing of spider mite-induced direct and indirect defenses in tomato plants显示文摘KANT M R AMENT K SABELIS M W 2004Plant Physiol2004,135,1:1
11Comparative statistical study for the ultimoate stress in unbonded post tensioning显示文摘Ament J Chakrabarti P R Putcha C S 1997ACI structure Journal1997,94,2:1
12Differential timing of spider mite-induced direct and indirect defenses in tomato plants 显示文摘Kant M R Ament K Sabelis M W 2004Plant Physiology2004,135,1:1
13The Boston Keratoprosthesis显示文摘Ament JD Pineda R Lawson B 2009Cornea2009,28,:1
14查看详情显示文摘Ament C Polynkin P Moloney J V 0,,:1
15Reducing adverse effects of proton pump inhibitors显示文摘Ament PW Dicola DB James ME 2012Am Fam Physician2012,86,1:1
16Zwischenberichte EFRB 2000显示文摘 G Goch Ch Ament M Sorg Th Rethmann M Lemmel 2000/12000,2,:1
17Respiratopy ammonia ouput and blood ammonia concentration during incremental exercise 显示文摘AMENT W HUIZENGA J R KORT E 1999Sports Med1999,20,2:1
18Economic evaluation in stroke research:A systematic review显示文摘Evers S M Ament A J Blaauw G 2000Stroke2000,31,5:1
19Cost-utility of a cardiovaseula prevention program in highly educated adults: intermediate result~ of a randomized controlled trial 显示文摘Jacohs N Evers S Ament A 2010Int J Technol Assess Healtl Care2010,26,1:1
20Linezolid:Its role in the treatment of gram-positive,drug-resistant bacterial infections显示文摘Ament PW Jamshed N Home JP 2002Am Faro Physician2002,65,:1
返回顶部 每页显示:
共10页 首页 上一页 第1页 下一页 末页 /10 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费