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3 Progress of Joint Research Activities
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Research No.: ㉘㉘ E-4 ODA Loan Joint Research Date: Oct. 14 , 2020
Analysis of economic efficiency of natural resources uses and
1 General Title problems in natural resource uses and management
CTU: Huynh Viet Khai (Leader), Truong Hoang Dan, Vo Quoc Tuan, Le Tan Loi,
Le Van Du
2 Core Members
Japanese Universities: UTSUNOMIYA Yuzuru (Nagasaki University),
YABE Mitsuyasu (Kyushu University)
st
3 Duration Jan.2018 – Dec.2020 (3 years) <1 Batch>
Developing natural resources management tools while applying economic tools:
4 Main Objectives
payment for ecosystem services and cost-benefit analysis
5 Focal Points

Figure 1. Spatial distribution of surveyed points classified by total area
Figure 2. Correlations between different variables at the district level
Table 1. Results of evaluating the important level of Melaleuca cajuputy ecosystem services
Total cores for each group of ecosystem
Interviewee ’s servies (form 1 to 5) Mean by
job/farming models Providing Supporting Regulating Cultural row
services services services servies
Melaleu cajuputy 4,0 3,84 3,39 1,32 3,14
Acacia Hybrid 3,67 3,40 3,13 1,23 2,86
Legends
Two rice crop 3,37 3,70 3,80 1,00 2,97
Salinity concentration
(April, 2018) Intergated rice-shrimp 1,10 1,70 2,33 1,00 1,53
Mean by column 3,04 3,16 3,16 1,14
1 UMH_fish_rain_season
0
20
Figure 3. Interpolation map on saline concentration in April 2018 at research area Similarity 40
Table 2. Marginal Willingness to pay (MWTP) for U Minh forest’ ecosystem conservation 60
Unit: VND 80
Model 1 Model 2 100 P4 P8 P1 P5 P7 P9 P3 P10
Attribute 95% CI 95% CI Figure 4. Similarity by wild fish species at sampling points at different acid player at research area
MWTP Lower Upper MWTP Lower Upper
bound bound bound bound Table 3. Willingness to pay (WTP) for U Minh forest’ ecosystem conservation project
Unit: thousand VND
Diver 874.3 *** 288.9 1,459.7 842.7 *** 268.3 1,417.1 95% Confident interval
Air 738.0 ** 153.1 1,323.0 727.0 ** 152.5 1,301.6 Model Mean WTP
Product 577.6 ** 13.8 1,141.5 528.5 * -5.5 1,062.5 Upper bound Lower bound ASL
StudyHigh 17,882.0 *** 9,602.3 26,161.8 17,377.1 *** 9,631.6 25,122.5 All respondents included 85.515 78.172 93.021 0.0000
Re-training 216.6 *** 99.3 333.9 217.0 *** 103.4 303.6 Protest bids excluded 130.000 113.646 147.699 0.0000
Note: ***, ** and * significant at 1%, 5% and 10%.
Note: ASL: Achieved Significance Level for testing H0: WTP <= 0 vs H1: WTP > 0.
Some publications from the project results: Confidence intervals are estimated by the Krinsky and Robb (1986) method.
❑ Economic Value of an Ecosystem Conservation Project: A Case Study of U Minh National Forest in the Vietnamese Mekong Delta, Journal of the
Faculty of Agriculture, Kyushu University (ISI journal).
❑ Willingness to pay of urban residents in Kien Giang for the ecosystem conservation of U Minh national park, Journal of Economic Studies
❑ Assessment of Can Tho Residents on the Economic Value of Ecosystem Conservation In U Minh Forest, Journal of Economics and Development
❑ Evaluation of the Willingness to Pay of Local Residents In Khanh Lam Commune for U Minh Ha Forest Protection, Thu Dau Mot University Journal
of Science
❑ Khanh An Resident’s Willingness to Pay for U Minh Ha Forest Conservation Project, Journal of Science, Can Tho University
❑ Estimating Kien Giang Urban Residents’ Willingness to Pay for The U Minh Conservation Project, HUAF Journal of Agricultural Science &
Technology
❑ Identification of ecosystem services of Melaluca forest in the buffer zone of the U Minh Ha National Park - Ca Mau province
❑ Using multivariate statistical analysis for surface water quality assessment in U Minh Ha National Park - Ca Mau Province
❑ Application of Primer software to evaluate the distribution of natural fishes at the buffer zone of U Minh Ha National Park – Ca Mau Province
❑ Evaluation of zooplankton diversity in the buffer zone of U Minh Ha National Park, Ca Mau province
6 Comments This research continues towards finalizing papers to submit Journals.
ⓒ All Rights Reserved, Nov. 2020 (CTU)
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