نتایج جستجو برای: sustainable size

تعداد نتایج: 674954  

2016
Bluszcz Anna

Nowadays methods of measurement and assessment of the level of sustained development at the international, national and regional level are a current research problem, which requires multi-dimensional analysis. The relative assessment of the sustainability level of the European Union member states and the comparative analysis of the position of Poland relative to other countries was the aim of t...

Journal: :Earth Negotiations Bulletin 1993
P Chasek C Schmidt R Jordan

The history of the Commission on Sustainable Development (CSD) is given in brief. A summary is provided of the plans for the Fourth Meeting of the CSD and of international conferences and activities related to sustainable development. Specific conference topics were consumption patterns, financial resources, the integration of environmental and development issues into decision making, informa...

Journal: :Human reproduction 1997
B M Ogilvie I G Scott

This paper describes what the Wellcome Trust has done and aims to do through its population initiative. The Trust is required to spend its funds to improve the physical welfare of mankind, and in this context there can be no more important issue than the rapid changes that are occurring in the human population. The Trust's first involvement was to help fund the New Delhi population summit cover...

Journal: :international journal of aquatic biology 0
mehmet karataş department of biology, faculty of science, karamanoglu mehmetbey university, karaman, turkey. erdoğan çiçek department of biology, faculty of arts and sciences, nevsehir hacı bektas veli university, nevsehir, turkey.

in this study gill-net selectivity for alburnus chalcoides inhabiting the almus dam lake was estimated. experimental gill-net fishing was conducted using gill-net with 15 mm and 20 mm mesh-size, during october 2002 and september 2003. a total of 254 and 198 specimens of a. chalcoides were caught by gill-net with 15 mm and 198 with the 20 mm mesh-size, respectively. the total length of the fish ...

2016
P. Niclas Broer Hillary E. Jenny Joshua S. Ng-Kamstra Sabrina Juran

In September 2015, the international community came together to agree on the 2030 Agenda for Sustainable Development, a plan of action for people, the planet, and prosperity. Ambitious and far-reaching as they are, they are built on three keystones: the elimination of extreme poverty, fighting climate change, and a commitment to fighting injustice and inequality. Critical to the achievement of ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Megan J Cole Richard M Bailey Mark G New

Nations in the 21st century face a complex mix of environmental and social challenges, as highlighted by the on-going Sustainable Development Goals process. The "planetary boundaries" concept [Rockström J, et al. (2009) Nature 461(7263):472-475], and its extension through the addition of social well-being indicators to create a framework for "safe and just" inclusive sustainable development [Ra...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Weihua Xu Yi Xiao Jingjing Zhang Wu Yang Lu Zhang Vanessa Hull Zhi Wang Hua Zheng Jianguo Liu Stephen Polasky Ling Jiang Yang Xiao Xuewei Shi Enming Rao Fei Lu Xiaoke Wang Gretchen C Daily Zhiyun Ouyang

Recent expansion of the scale of human activities poses severe threats to Earth's life-support systems. Increasingly, protected areas (PAs) are expected to serve dual goals: protect biodiversity and secure ecosystem services. We report a nationwide assessment for China, quantifying the provision of threatened species habitat and four key regulating services-water retention, soil retention, sand...

2016
Michael Obersteiner Brian Walsh Stefan Frank Petr Havlík Matthew Cantele Junguo Liu Amanda Palazzo Mario Herrero Yonglong Lu Aline Mosnier Hugo Valin Keywan Riahi Florian Kraxner Steffen Fritz Detlef van Vuuren

The 17 Sustainable Development Goals (SDGs) call for a comprehensive new approach to development rooted in planetary boundaries, equity, and inclusivity. The wide scope of the SDGs will necessitate unprecedented integration of siloed policy portfolios to work at international, regional, and national levels toward multiple goals and mitigate the conflicts that arise from competing resource deman...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
عبادالله نعمتی کارشناس ارشد توسعة روستایی، دانشگاه تهران هوشنگ ایروانی استاد دانشکدة اقتصاد و توسعة کشاورزی، دانشگاه تهران علی اسدی استاد دانشکدة اقتصاد و توسعة کشاورزی، دانشگاه تهران

the main purpose of this paper is analyzing sustainability condition for potato cultivation in bahar-hamedan plain. potato farmers population in this plain is 2054 individuals. we obtained sample size, which are 162 by using cochrane’s formula. for increasing accuracy 172 samples fill out the questionnaires. data analyzed by spss software. results showed that sustainability level was low or ver...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
هانیه داودی دانشجوی کارشناسی ارشد توسعه روستایی، دانشگاه تهران طهماسب مقصودی عضو هیات علمی دانشگاه آزاد اسلامی، واحد جامع شوشتر

the sustainability of farming system is among the serious issues that has attracted the attention of many researchers in recent years. therefore, an investigation of farmers’ knowledge about sustainable agriculture is important, if sustainable development is to be achieved. the purpose of this descriptive correlational research was to determine the knowledge level of potato growers in shushtar ...

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