Details
| Original language | English |
|---|---|
| Pages (from-to) | 41-54 |
| Number of pages | 14 |
| Journal | Vietnam Journal of Earth Sciences |
| Volume | 42 |
| Issue number | 1 |
| Publication status | Published - 15 Jan 2020 |
Abstract
The famous terraced rice ecosystem in the mountainous areas as Sapa of northern Vietnam has expanded with unstable productivity over generations. However, the question arises of how natural and human conditions on terraces can boost the quality of rice provisioning ecosystem service supply with rice yields as an indicator. The study used a semi-structured interview method, the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) tool and general linear models to investigate the influence of natural and human-derived components on the rice provisioning service at six villages. The results showed that along with the importance of applying a fertilizer-based system in the terraced rice ecosystem, topology- and hydrology-based systems have been influencing significantly on water and nutrient supply for irrigation on terraced rice fields. Moreover, analyzing the natural components has been considered more efficient than human-derived components for a sustainable rice ecosystem. The results indicated that the high potential of rice provisioning service supply had found at the downstream of Ta Van sub-catchment and the Vu Lung Sung village where the distance from paddy fields to sinks or outlet of streams is lower than five kilometers. The last result of the synthetic model proving 74.28 percent of deviance of terraced rice production did not avoid many noises in collecting and standardizing data that also discuss in this study.
Keywords
- Human, Hydrology, InVEST, Multiple linear regression, Rice production, Sapa, Semi-structured interview, Topology
ASJC Scopus subject areas
Sustainable Development Goals
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In: Vietnam Journal of Earth Sciences, Vol. 42, No. 1, 15.01.2020, p. 41-54.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modeling effects of abiotic and anthropogenic factors to rice production
T2 - A case study in Sapa District, Lao Cai Province, Vietnam
AU - Bac, Dang Kinh
AU - Burkhard, Benjamin
PY - 2020/1/15
Y1 - 2020/1/15
N2 - The famous terraced rice ecosystem in the mountainous areas as Sapa of northern Vietnam has expanded with unstable productivity over generations. However, the question arises of how natural and human conditions on terraces can boost the quality of rice provisioning ecosystem service supply with rice yields as an indicator. The study used a semi-structured interview method, the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) tool and general linear models to investigate the influence of natural and human-derived components on the rice provisioning service at six villages. The results showed that along with the importance of applying a fertilizer-based system in the terraced rice ecosystem, topology- and hydrology-based systems have been influencing significantly on water and nutrient supply for irrigation on terraced rice fields. Moreover, analyzing the natural components has been considered more efficient than human-derived components for a sustainable rice ecosystem. The results indicated that the high potential of rice provisioning service supply had found at the downstream of Ta Van sub-catchment and the Vu Lung Sung village where the distance from paddy fields to sinks or outlet of streams is lower than five kilometers. The last result of the synthetic model proving 74.28 percent of deviance of terraced rice production did not avoid many noises in collecting and standardizing data that also discuss in this study.
AB - The famous terraced rice ecosystem in the mountainous areas as Sapa of northern Vietnam has expanded with unstable productivity over generations. However, the question arises of how natural and human conditions on terraces can boost the quality of rice provisioning ecosystem service supply with rice yields as an indicator. The study used a semi-structured interview method, the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) tool and general linear models to investigate the influence of natural and human-derived components on the rice provisioning service at six villages. The results showed that along with the importance of applying a fertilizer-based system in the terraced rice ecosystem, topology- and hydrology-based systems have been influencing significantly on water and nutrient supply for irrigation on terraced rice fields. Moreover, analyzing the natural components has been considered more efficient than human-derived components for a sustainable rice ecosystem. The results indicated that the high potential of rice provisioning service supply had found at the downstream of Ta Van sub-catchment and the Vu Lung Sung village where the distance from paddy fields to sinks or outlet of streams is lower than five kilometers. The last result of the synthetic model proving 74.28 percent of deviance of terraced rice production did not avoid many noises in collecting and standardizing data that also discuss in this study.
KW - Human
KW - Hydrology
KW - InVEST
KW - Multiple linear regression
KW - Rice production
KW - Sapa
KW - Semi-structured interview
KW - Topology
UR - http://www.scopus.com/inward/record.url?scp=85102565698&partnerID=8YFLogxK
U2 - 10.15625/0866-7187/42/1/14757
DO - 10.15625/0866-7187/42/1/14757
M3 - Article
AN - SCOPUS:85102565698
VL - 42
SP - 41
EP - 54
JO - Vietnam Journal of Earth Sciences
JF - Vietnam Journal of Earth Sciences
SN - 2615-9783
IS - 1
ER -