کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10249650 | 158377 | 2011 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Carbon dioxide fluxes in corn-soybean rotation in the midwestern U.S.: Inter- and intra-annual variations, and biophysical controls
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Carbon dioxide fluxes in corn-soybean rotation in the midwestern U.S.: Inter- and intra-annual variations, and biophysical controls Carbon dioxide fluxes in corn-soybean rotation in the midwestern U.S.: Inter- and intra-annual variations, and biophysical controls](/preview/png/10249650.png)
چکیده انگلیسی
⺠We monitored CO2 fluxes using eddy-covariance and soil chambers in two adjacent production fields within four years. ⺠Available light and/or air temperature explained up to 81% of variations in CO2 fluxes during fallow and growing seasons. ⺠Daytime CO2 exchanges over crops depicted hysteresis with available light with greater uptake in mornings than afternoons. ⺠Corn exhibited 1.7-fold greater peak rates of diurnal CO2 uptake and 18% longer duration of CO2 sink periods than soybean. ⺠While corn showed annual net CO2 uptake and neutral system C balance, soybean showed neutral CO2 exchange and C depletion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural and Forest Meteorology - Volume 151, Issue 12, 15 December 2011, Pages 1831-1842
Journal: Agricultural and Forest Meteorology - Volume 151, Issue 12, 15 December 2011, Pages 1831-1842
نویسندگان
Guillermo Hernandez-Ramirez, Jerry L. Hatfield, Timothy B. Parkin, Thomas J. Sauer, John H. Prueger,