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Sir Arthur Tansley was the leading figure in ecology for the first half of the 20th century, founding the field, and forming its first professional societies. He was the first President of the British Ecological Society and the first chair of the Field Studies Council. His work as a botanist is considered seminal and he is recognized as one of the giants of ecology throughout the world. Ecology underpins the principles and practices of modern conservation and the maintenance of biodiversity. It explains the causes of, and offers solutions to, problems of climate change. Yet ecology is a young science, barely 100 years old. Its origins lie in phytogeography, the naming and mapping of plants. ...
Revised papers from symposia held in 1982, 1983, and 1984.
Adopting an interdisciplinary approach to the study of photoassimilate partitioning and source-sink relationhips, this work details the major aspects of source-sink physiology and metabolism, the integration of individual components and photoassimilate partitioning, and the whole plant source-sink relationships in 16 agriculturally important crops. The work examines in detail the components of carbon partitioning, such as ecology, photosynthesis, loading, transport and anatomy, and discusses the impact of genetic, environmental and agrotechnical factors on the parts of whole plant source-link physiology.
Water Deficits and Plant Growth, Volume VII: Additional Woody Crop Plants is an extension of Volume VI of this treatise and deals primarily with water relations of woody crop plants in a community context. Organized into five chapters, this book begins with the important problem of predicting effects of vegetation changes on transpiration and evaporation. Separate chapters follow that discuss water relations of cotton, small fruits, grapevines, and peach trees and orchards. For each of these plant communities, emphasis is placed on hydrological cycles; water use and transpiration; absorption of water; and effects of environmental factors on soil and plant water balance. The effects of water deficits on physiological processes; vegetative and reproductive growth; yield of harvested products; drought resistance; and cultural practices affecting plant water balance and yield are also emphasized in this book. This volume will be useful to both researchers and those involved in the practice of growing woody plants for crops or for esthetic values.
A clear-eyed and urgent vision for a new system of political governance to manage planetary issues and their local consequences. Deadly viruses, climate-changing carbon molecules, and harmful pollutants cross the globe unimpeded by national borders. While the consequences of these flows range across scales, from the planetary to the local, the authority and resources to manage them are concentrated mainly at one level: the nation-state. This profound mismatch between the scale of planetary challenges and the institutions tasked with governing them is leading to cascading systemic failures. In the groundbreaking Children of a Modest Star, Jonathan S. Blake and Nils Gilman not only challenge d...
Water Deficits and Plant Growth, Volume VI: Woody Plant Communities focuses on the water relations of woody plants in a community context. Organized into eight chapters, this book begins with a quantitative overview of sources of water available to woody plants. Separate chapters follow that discuss the water relations of coniferous, temperate hardwood, and tropical and subtropical forests and woodlands; apple and citrus orchards; closely related woody plants; and tea plantations. For each of these plant communities, emphasis is placed on hydrological cycles; water use and transpiration; absorption of water; and effects of environmental factors on soil and plant water balance. The effects of water deficits on physiological processes; vegetative and reproductive growth; yield of harvested products; drought resistance; and cultural practices affecting plant water balance and yield are also emphasized in this book. This volume will be useful to both researchers and those involved in the practice of growing woody plants for wood and fruit crops and for esthetic values.
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