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Crop-assimilative carbon in the farmland ecosystem - an important source for carbon turnover in soil

Abstract

Crop-assimilated carbon (C), an important source of soil organic carbon (SOC), represents a key linked component of the C cycle in the soil-plant-atmosphere continuum. In the farmland ecosystem, however, the quantitative characterization and mechanism involved in the distribution and transformation of the assimilated C in soil over the plant's life cycle are problems relatively easily ignored. Research in this area is therefore indispensable for a thorough understanding of the process and characteristics of the organic C cycle in farmland soil. This paper provides an overview on: (1) the distribution, transformation rules, and structural features of crop-assimilated C in soil and its contribution to SOC and the function of microorganisms in the transformation of assimilated C. (2) The chemical compositions and structural features of the assimilated C after its entry into soil organic matter. (3) The relationship between assimilated C, rhizosphere deposition, and C isotope technology. Based on the findings, we consider that further research on the distribution of crop-assimilated C in the soil-crop system and the quantitative relations of several C-transformation steps such as crop input, transformation, protection, and stabilization in different ecosystems should be conducted. Moreover, the component and structure of 'new C' input into the soil by rhizosphere  More>>
Authors:
Nie, Sanan; [1]  School of Resource and Environment, Hunan Agricultural Univ., Hunan (China)), email: sjtugtd@gmail.com; Ge, Tida; Liu, Chang; Xiao, Heai [1] 
  1. Key Laboratory of Agro-ecological Processes in Subtropical Region, Inst. of Subtropical Agriculture, Chinese Academy of Sciences, Hunan (China)
Publication Date:
Mar 15, 2011
Product Type:
Journal Article
Resource Relation:
Journal Name: Acta Agriculturae Scandinavica. Section B, Soil and Plant Science; Journal Volume: 61; Journal Issue: 2; Other Information: 43 refs.; 10.1080/09064711003670862
Subject:
54 ENVIRONMENTAL SCIENCES; CARBON CYCLE; SOILS; LAND USE; PLANTS; EARTH ATMOSPHERE; CROPS; ECOSYSTEMS
OSTI ID:
1010827
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0906-4710; TRN: SE1107092
Availability:
Available from DOI: http://dx.doi.org/10.1080/09064711003670862
Submitting Site:
SWD
Size:
page(s) 105-111
Announcement Date:
Apr 11, 2011

Citation Formats

Nie, Sanan, School of Resource and Environment, Hunan Agricultural Univ., Hunan (China)), email: sjtugtd@gmail.com, Ge, Tida, Liu, Chang, and Xiao, Heai. Crop-assimilative carbon in the farmland ecosystem - an important source for carbon turnover in soil. Sweden: N. p., 2011. Web. doi:10.1080/09064711003670862.
Nie, Sanan, School of Resource and Environment, Hunan Agricultural Univ., Hunan (China)), email: sjtugtd@gmail.com, Ge, Tida, Liu, Chang, & Xiao, Heai. Crop-assimilative carbon in the farmland ecosystem - an important source for carbon turnover in soil. Sweden. doi:10.1080/09064711003670862.
Nie, Sanan, School of Resource and Environment, Hunan Agricultural Univ., Hunan (China)), email: sjtugtd@gmail.com, Ge, Tida, Liu, Chang, and Xiao, Heai. 2011. "Crop-assimilative carbon in the farmland ecosystem - an important source for carbon turnover in soil." Sweden. doi:10.1080/09064711003670862. https://www.osti.gov/servlets/purl/10.1080/09064711003670862.
@misc{etde_1010827,
title = {Crop-assimilative carbon in the farmland ecosystem - an important source for carbon turnover in soil}
author = {Nie, Sanan, School of Resource and Environment, Hunan Agricultural Univ., Hunan (China)), email: sjtugtd@gmail.com, Ge, Tida, Liu, Chang, and Xiao, Heai}
abstractNote = {Crop-assimilated carbon (C), an important source of soil organic carbon (SOC), represents a key linked component of the C cycle in the soil-plant-atmosphere continuum. In the farmland ecosystem, however, the quantitative characterization and mechanism involved in the distribution and transformation of the assimilated C in soil over the plant's life cycle are problems relatively easily ignored. Research in this area is therefore indispensable for a thorough understanding of the process and characteristics of the organic C cycle in farmland soil. This paper provides an overview on: (1) the distribution, transformation rules, and structural features of crop-assimilated C in soil and its contribution to SOC and the function of microorganisms in the transformation of assimilated C. (2) The chemical compositions and structural features of the assimilated C after its entry into soil organic matter. (3) The relationship between assimilated C, rhizosphere deposition, and C isotope technology. Based on the findings, we consider that further research on the distribution of crop-assimilated C in the soil-crop system and the quantitative relations of several C-transformation steps such as crop input, transformation, protection, and stabilization in different ecosystems should be conducted. Moreover, the component and structure of 'new C' input into the soil by rhizosphere deposition in C assimilation and its relationship with oxidation and mineralized stability should also be accounted for}
doi = {10.1080/09064711003670862}
journal = {Acta Agriculturae Scandinavica. Section B, Soil and Plant Science}
issue = {2}
volume = {61}
place = {Sweden}
year = {2011}
month = {Mar}
}