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The State of the World’s Forests 2020
As the United Nations Decade on Biodiversity 2011–2020 comes to a close and countries prepare to adopt a post-2020 global biodiversity framework, this edition of The State of the World’s Forests (SOFO) examines the contributions of forests, and of the people who use and manage them, to the conservation and sustainable use of biodiversity. Forests cover just over 30 percent of the global land area, yet they provide habitat for the vast majority of the terrestrial plant and animal species known to science. Unfortunately, forests and the biodiversity they contain continue to be under threat from actions to convert the land to agriculture or unsustainable levels of exploitation, much of it illegal. The State of the World’s Forests 2020 assesses progress to date in meeting global targets and goals related to forest biodiversity and examines the effectiveness of policies, actions and approaches, in terms of both conservation and sustainable development outcomes. A series of case studies provide examples of innovative practices that combine conservation and sustainable use of forest biodiversity to create balanced solutions for both people and the planet.
Thin Cell Layer Culture System: Regeneration and Transformation Applications
Scientists within the field of plant biotechnology are in a constant search for techniques that can, in the simplest manner possible, answer the genetic and biochemical questions that underlie developmental processes. Thin Cell Layer Culture System not only takes an in-depth look at a technique that has had so much success in attempting, through various practical models and systems, to answer these issues, but also represents a celebration of almost 30 years of research that has covered a massive scope of plant species and areas of study. The initial studies conducted on tobacco thin cell layers (TCLs) - proving that organogenesis can be strictly controlled in vitro - allowed plant research ...
2020年世界森林状况
联合国生物多样性十年（2011-2020）即将到期，各国政府正着手准备采用2020年后全球生物多样性框架。值此之际，本版《世界森林状况》（SOFO）考察了森林以及利用和管理森林的人类对保护和可持续利用生物多样性所做的贡献。 森林仅占全球陆地面积略高于30％，然而却为绝大多数科学上已知的陆生动植物提供了栖息地。不幸的是，森林及其所蕴含的生物多样性继续受到来自将林地转为农地或对其不可持续攫取的威胁，而且其中大部分都是非法行为。 《2020年世界森林状况》评估了迄今为止在实现与森林生物多样性有关的全球目标和具体目标方面的进展，并从保护和可持续发展成果两方面考察了政策、行动和方法的有效性。报告中一系列案例研究提供了创新实践的例子，这些实践结合了森林生物多样性的保护和可持续利用，创造了实现人类和地球之间平衡的解决方案。
La situation des forêts du monde 2020
Alors que la Décennie des Nations Unies pour la biodiversité 2011-2020 touche à sa fin et que les pays se préparent à adopter un cadre mondial pour la biodiversité pour l’après-2020, la présente édition de La Situation des forêts du monde (SOFO) examine la contribution des forêts, et des personnes qui les utilisent et les gèrent, à la conservation et à l’utilisation durable de la biodiversité. Les forêts recouvrent à peine plus de 30 pour cent de la superficie des terres émergées et cependant elles abritent une vaste majorité des espèces végétales et animales terrestres connues. Malheureusement, les forêts et la biodiversité qu’elles renferment demeurent menac...
El estado de los bosques del mundo 2020
A medida que finaliza el Decenio de las Naciones Unidas sobre la Biodiversidad 2011-2020 y los países se preparan para adoptar un marco de biodiversidad posterior a 2020, esta edición de El estado de los bosques del mundo (SOFO) examina las contribuciones de los bosques, y de las personas que los utilizan y los gestionan, a la conservación y el uso sostenible de la biodiversidad. Los bosques cubren poco más del 30% de la superficie terrestre mundial, sin embargo, son el hábitat de la gran mayoría de las especies de plantas y animales terrestres conocidas por la ciencia. Desafortunadamente, los bosques y la biodiversidad que en ellos habita continúan amenazados debido a las acciones pa...
Culture Media, Solutions, and Systems in Human ART
Detailed discussion of the history, current status and significance of ART media and the culture systems for their use.
Historical Dictionary of Medieval China
The crucial period of Chinese history, 220-960, falls naturally into contrasting phases. The first phase, also known as that of "early medieval China," is an age of political decentralization. Following the breakup of the Han empire, China was plunged into civil war and fragmentation and stayed divided for nearly four centuries. The second phase started in 589, during the Sui dynasty, when China was once again brought under a single government. Under the Sui, the bureaucracy was revitalized, the military strengthened, and the taxation system reformed. The fall of the Sui in 618 gave way to the even stronger Tang dynasty, which represents an apogee of traditional Chinese civilization. Inherit...
