Carbon isotope discrimination in forest and pasture ecosystems of the Amazon Basin, Brazil
نویسندگان
چکیده
منابع مشابه
Carbon isotope discrimination in forest and pasture ecosystems of the Amazon Basin, Brazil
[1] Our objective was to measure the stable carbon isotope composition of leaf tissue and CO2 released by respiration (dr), and to use this information as an estimate of changes in ecosystem isotopic discrimination that occur in response to seasonal and interannual changes in environmental conditions, and land-use change (forest-pasture conversion). We made measurements in primary forest and pa...
متن کاملThe relationships between carbon isotope discrimination and photosynthesis and rice yield under shading
The measurement of carbon isotope discrimination (∆) provides an integrated insight into theresponse of plants to environmental change. To investigate the potential use of ∆ for identifyingshade tolerance in rice, five rice varieties were selected and artificially shaded (53% lightreduction) during the grain-filling period in 2010 and 2011, in Sichuan, China. Shadingtreatment had a significant ...
متن کاملCarbon Isotope Discrimination and Photosynthesis
INTRODUCTION ..................................................................................... 504 ISOTOPE EFFECTS ........................................................................... ’ ....... 504 ISOTOPIC OMPOSITION A D DISCRIMINATION ....................................... 505 Definitions .......................................................................................... 50...
متن کاملCarbon allocation in forest ecosystems
C R E I G H T O N M . L I T T O N *, J A M E S W. R A I C H w and M I C H A E L G . R YA N z§ *Department of Natural Resources and Environmental Management, University of Hawaii at Manoa, 1910 East-West Rd., Honolulu, HI 96822, USA, wDepartment of Ecology, Evolution and Organismal Biology, Iowa State University, 253 Bessey Hall, Ames, IA 50011, USA, zUSDA Forest Service, Rocky Mountain Research...
متن کاملForest Ecosystems and the Carbon Cycle
The continuous flow of carbon from the land and water through the atmosphere and living organisms makes up the global carbon cycle [1]. It contains reservoirs where carbon is stored and features dynamic flows of carbon between the carbon pools [2]. Forests are one of the largest reservoirs of carbon on Earth [1], and therefore their storage and release of carbon have a great impact on the globa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Global Biogeochemical Cycles
سال: 2002
ISSN: 0886-6236
DOI: 10.1029/2001gb001462