دورية أكاديمية
Biophysical controls on light response of net CO2 exchange in a winter wheat field in the North China Plain.
| العنوان: | Biophysical controls on light response of net CO2 exchange in a winter wheat field in the North China Plain. |
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| المؤلفون: | Xiaojuan Tong, Jun Li, Qiang Yu, Zhonghui Lin |
| المصدر: | PLoS ONE, Vol 9, Iss 2, p e89469 (2014) |
| بيانات النشر: | Public Library of Science (PLoS), 2014. |
| سنة النشر: | 2014 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | To investigate the impacts of biophysical factors on light response of net ecosystem exchange (NEE), CO2 flux was measured using the eddy covariance technique in a winter wheat field in the North China Plain from 2003 to 2006. A rectangular hyperbolic function was used to describe NEE light response. Maximum photosynthetic capacity (P max) was 46.6 ± 4.0 µmol CO2 m(-2) s(-1) and initial light use efficiency (α) 0.059 ± 0.006 µmol µmol(-1) in April-May, two or three times as high as those in March. Stepwise multiple linear regressions showed that P max increased with the increase in leaf area index (LAI), canopy conductance (g c) and air temperature (T a) but declined with increasing vapor pressure deficit (VPD) (P25°C or VPD>1.1-1.3 kPa, NEE residual increased with the increase in T a and VPD (P |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1932-6203 |
| Relation: | http://europepmc.org/articles/PMC3930739?pdf=render; https://doaj.org/toc/1932-6203 |
| DOI: | 10.1371/journal.pone.0089469 |
| URL الوصول: | https://doaj.org/article/2f5b7a28cbbd4d7da44194406c0ee27f |
| رقم الأكسشن: | edsdoj.2f5b7a28cbbd4d7da44194406c0ee27f |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19326203 |
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| DOI: | 10.1371/journal.pone.0089469 |