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Suthisak Saree. Soil Organic Carbon Dynamics in a C4 Plant (Corn) - C3Plant (Rice) Rotation. Master's Degree(Energy Technology). King Mongkut's University of Technology Thonburi. KMUTT Library. : King Mongkut's University of Technology Thonburi, 2010.
Soil Organic Carbon Dynamics in a C4 Plant (Corn) - C3Plant (Rice) Rotation
Name: Suthisak Saree
keyword:
Soil organic carbon
Abstract:
Effect of C3-C4 vegetation change from maize cultivation to paddy rice cultivation
on soil organic carbon (SOC) was studied by comparing three types of cropping systems
(continuous maize, continuous paddy rice and maize-rice rotation) in an experimental field
that had been continuously cultivated with maize for more than 20 years. The results show
that continuous paddy rice soil stored larger amount ofSOC (20.88 ton C ha-l) than maizerice
rotation (19.35 ton C ha-l) and continuous maize (16.50 ton C ha-l) . The relatively
higher SOC stored under rice cultivation is possibly because the delay decompositions
induced by flooding conditions. Most of SOC (33.94%) are stored with the particle size of
250-500 um. Analysis of humic substance fraction reveals that humin fraction stores
highest amount of SOC (86.88%). Stable carbon isotope technique was used to further
observe the short-term incorporation dynamics of C3/C4 derived C in particle sizes fraction
(<250 um, 250-500 um, 500-1000 um and >1000 um) and in the humic substance fractions
(Humic acid, Fulvic acid, and Humin fractions). The results indicated that incorporation of
newly added organic materials occurred from the beginning of cropping season, indicating
the rapid decomposition and incorporation into bulk soil SOC as well as into all humic
fractions. In addition, the SOC fraction associated with the soil particle size of 500-1000
um was relatively sensitive to cultivation change such as change from upland maize
cultivation to lowland rice cultivation. Among humic substances, humic acid is subject to
the influences of changing cultivation.
King Mongkut's University of Technology Thonburi. KMUTT Library
Address:
BANGKOK
Email:
info.lib@mail.kmutt.ac.th
Name: Amnat Chidthaisong
Role:
อาจารย์ที่ปรึกษา
Created:
2010
Modified:
2012-01-05
Issued:
2555-01-03
วิทยานิพนธ์/Thesis
application/pdf
CallNumber:
JGSEE239
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Energy Technology
©copyrights King Mongkut's University of Technology Thonburi
RightsAccess:
ใช้เวลา
0.039916 วินาที
Suthisak Saree
| Title | Contributor | Type |
|---|---|---|
| Soil Organic Carbon Dynamics in a C4 Plant (Corn) - C3Plant (Rice) Rotation
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Suthisak Saree | Amnat Chidthaisong | วิทยานิพนธ์/Thesis |
| Soil carbon sequestration affected by cropping changes from upland maize to flooded rice cultivation
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Suthisak Saree;Pancheewan Ponphang-nga;Ed Sarobol;Pitayakorn Limtong;Amnat Chidthaisong | บทความ/Article |
Amnat Chidthaisong