期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
小粒咖啡庇荫效应及其间作优势组合的探讨 被引量:12
1
作者 张洪波 李文伟 石支边 《云南热作科技》 2002年第1期18-21,26,共5页
在云南热区合理的间作能为小粒咖啡提供适度荫蔽,改善生态环境,有利于咖啡生长发育,减轻寒害、病虫和草害影响,为咖啡丰产、稳产,提高园地产出率,降低成本创造条件;橡胶+咖啡,香蕉+咖啡,澳洲坚果+咖啡,龙眼、荔枝+咖啡是小粒咖啡间作的... 在云南热区合理的间作能为小粒咖啡提供适度荫蔽,改善生态环境,有利于咖啡生长发育,减轻寒害、病虫和草害影响,为咖啡丰产、稳产,提高园地产出率,降低成本创造条件;橡胶+咖啡,香蕉+咖啡,澳洲坚果+咖啡,龙眼、荔枝+咖啡是小粒咖啡间作的优势组合。 展开更多
关键词 庇荫效应 间作组合 小粒咖啡
下载PDF
麦桐作田内小麦产量评价初探 被引量:1
2
作者 杨德胜 《四川气象》 2003年第1期38-41,共4页
运用方差分析、模糊聚类、判别分析等方法 ,对麦桐间作田内受树龄、行距、距树距离影响的小麦产量分布状况作了初步分析 ,找出了使二者均能获得较好的经济效益的间作组合方式 ,即初期泡桐行距为2 0m ,当泡桐长至 4年时 ,隔行砍伐 ,使行... 运用方差分析、模糊聚类、判别分析等方法 ,对麦桐间作田内受树龄、行距、距树距离影响的小麦产量分布状况作了初步分析 ,找出了使二者均能获得较好的经济效益的间作组合方式 ,即初期泡桐行距为2 0m ,当泡桐长至 4年时 ,隔行砍伐 ,使行距变为 4 0m。 展开更多
关键词 方差分析 模糊聚类 判别分析 小麦产量 经济效益 间作组合方式 泡桐
下载PDF
Exercise is recreation not medicine
3
作者 Andy Smith 《Journal of Sport and Health Science》 SCIE 2016年第2期129-134,共6页
Purpose: This paper responds to the question, is exercise medicine? It does so using a qualitative case study that proposes that exercise is recreation. The study (1) describes and reflects upon an exercise is rec... Purpose: This paper responds to the question, is exercise medicine? It does so using a qualitative case study that proposes that exercise is recreation. The study (1) describes and reflects upon an exercise is recreation metaphor, (2) establishes the principles and processes used to develop a sport park within which exercise is recreation, and (3) presents a comparative analysis of the exercise is recreation approach with a UK quality framework for "exercise referrals". Methods: Four years of documentation were collated and placed into 14 categories: (1) university strategies, (2) plans of the site, (3) policy documents, (4) minutes of a steering group, (5) contemporary documents, (6) organisational charts, (7) responses to local government policies on sport, (8) consultation documents, (9) operational procedures, (10) facility specifications, (11) partnership agreements, (12) material relating to the university's work on events, (13) notes on the universities sport department, and (14) timetables. These data were analysed through a 4-stage process which used recreation as the analytical theme for a comparative analysis. Results: The characteristics of the exercise is recreation metaphor in this case are (1) a focus on the experience of the user, (2) the promotion of well-being, (3) the importance of community, (4) embracing inclusivity, (5) sport, (6) aesthetics, and (7) leisure time. The principles and processes used to develop the sport park were (1) custodianship, (2) partnerships, (3) values, (4) inter-professional working, (5) local heritage, (6) change, (7) the natural park environment, and (8) "riding the bike as you build it". The comparative analysis with a UK quality framework for "exercise referrals" clearly shows a difference from an exercise is recreation approach. Conclusion: Exercise is recreation and may enable individuals and communities to reach a state of well-being. ~ 2016 Production and hosting by Elsevier B.V. on behalf of Shanghai University of Sport. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 展开更多
关键词 Case study EXERCISE MEDICINE RECREATION
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部