Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 26
Book Description
BOREAS TE-9 NSA Photosynthetic Capacity and Foliage Nitrogen Data
BOREAS TE-9 PAR and Leaf Nitrogen Data for NSA Species
Author: Boreas Te-9 Nsa Photosynthetic Capacity and Foliage Nitrogen Data
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781724089441
Category :
Languages : en
Pages : 36
Book Description
The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-9 (Terrestrial Ecology) team collected several data sets related to chemical and photosynthetic properties of leaves in boreal forest tree species. This data set describes the spatial and temporal relationship between foliage nitrogen concentration and photosynthetic capacity in the canopies of black spruce, jack pine, and aspen located within the Northern Study Area (NSA). The data were collected from June to September 1994 and are useful for modeling the vertical distribution of carbon fixation for different forest types in the boreal forest. The data are available in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). Hall, Forrest G. (Editor) and Curd, Shelaine (Editor) and Dang, Qinglai and Margolis, Hank and Coyea, Marie Goddard Space Flight Center NASA/TM-2000-209891/VOL156, NAS 1.15:209891/VOL156, Rept-2000-03136-0/VOL156
BOREAS TE-9 NSA Canopy Biochemistry
Author: BOREAS TE-9 In Situ Diurnal Gas Exchange of NAS Boreal Forest Stands
Author: Boreas Te-9 Par and Leaf Nitrogen Data for Nsa Species
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721237753
Category :
Languages : en
Pages : 38
Book Description
The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-9 (Terrestrial Ecology) team collected several data sets related to chemical and photosynthetic properties of leaves in boreal forest tree species. This data set describes the relationship between photosynthetically active radiation (PAR) levels and foliage nitrogen in samples from six sites in the BOREAS Northern Study Area (NSA) collected during the three 1994 intensive field campaigns (IFCs). This information is useful for modeling the vertical distribution of carbon fixation for these different forest types in the boreal forest. The data were collected to quantify the relationship between PAR and leaf nitrogen of black spruce, jack pine, and aspen. The data are available in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). Hall, Forrest G. (Editor) and Curd, Shelaine (Editor) and Dang, Qinglai and Margolis, Hank and Coyea, Marie Goddard Space Flight Center NASA/TM-2000-209891/VOL158, NAS 1.15:209891/VOL158, Rept-2000-03136-0/VOL158
Biometeorology in Integrated Pest Management
Author: Jerry HatfieldPublisher: Elsevier
ISBN: 0323147968
Category : Technology & Engineering
Languages : en
Pages : 502
Book Description
Biometeorology in Integrated Pest Management is a resulting book from a conference with the same title held at the University of California in 1980. This book presents integrated pest management (IPM) in different viewpoints and perspectives. It serves as a helpful exchange of ideas to strengthen the research in integrated pest management. From a biometeorological viewpoint, the microclimate of agricultural systems is introduced in this book to describe the environment in which pests live. The first few chapters in this book discuss IPM in the perspective of biometeorology. Some of the topics include crop canopies (general heat exchange and wind movement), microclimate (instrumentation, techniques, and simulation), and microclimatic stress (remote sensing). The following section of the book focuses on plant pathology. The subject areas covered in this section include radiation quality and plant diseases; management of plant pathogens; and plant canopy modification and impact on plant disease. The last section focuses on weed science. The interaction of weeds to other pests, effects of light and temperature on weed growth, and weed seed germination are some of the topics discussed in this part. This book is a good source of reference to both students and professionals in the field of biometeorology, entomology, and agriculture. Other interested parties in the research of integrated pest management will also find this book helpful in their endeavors.
Relict Species
Author: Jan Christian HabelPublisher: Springer Science & Business Media
ISBN: 3540921605
Category : Science
Languages : en
Pages : 444
Book Description
Mankind has evolved both genetically and culturally to become a most successful and dominant species. But we are now so numerous and our technology is so p- erful that we are having major effects on the planet, its environment, and the b- sphere. For some years prophets have warned of the possible detrimental consequences of our activities, such as pollution, deforestation, and overfishing, and recently it has become clear that we are even changing the atmosphere (e. g. ozone, carbon dioxide). This is worrying since the planet’s life systems are involved and dependent on its functioning. Current climate change – global w arming – is one recognised consequence of this larger problem. To face this major challenge, we will need the research and advice of many disciplines – Physics, Chemistry, Earth Sciences, Biology, and Sociology – and particularly the commitment of wise politicians such as US Senator Al Gore. An important aspect of this global problem that has been researched for several decades is the loss of species and the impoverishment of our ecosystems, and hence their ability to sustain themselves, and more particularly us! Through evolutionary time new species have been generated and some have gone extinct. Such extinction and regeneration are moulded by changes in the earth’s crust, atmosphere, and resultant climate. Some extinctions have been massive, particularly those asso- ated with catastrophic meteoric impacts like the end of the Cretaceous Period 65Mya.
Photon-Vegetation Interactions
Author: Ranga B. MyneniPublisher: Springer Science & Business Media
ISBN: 3642753892
Category : Science
Languages : en
Pages : 571
Book Description
Photon-Vegetation Interactions deals with the interaction of electromagnetic radiation with vegetation canopies. The approach to the various aspects is mainly theoretical and consequently the subject is being treated as a special branch of mathematical physics. A major emphasis is on the development of theoretical methods for determining the reflection function of vegetation canopies in optical remote sensing. Furthermore, the coupling of the radiative transfer theory with leaf photosynthesis to evaluate the productivity of vegetation canopies is treated as well as the theory of photon transport in phototropic and other biological media.
The Dictionary of Physical Geography
Author: David S. G. ThomasPublisher: John Wiley & Sons
ISBN: 1118687434
Category : Science
Languages : en
Pages : 918
Book Description
The third edition of this comprehensive encyclopedic dictionary covers the whole field of physical geography and provides an essential reference for all students and lecturers in this field.