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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B4. Istanbul 2004
However, the above works cannot come to a framework or a
complete solution for SD acquisition and SD management at
four administrative management levels because of the
resolution of SD is not quantified for each discipline and at
each management level.
This paper aims at quantifying the multi-resolution
characteristics of SD used and required in Vietnam LA. Base on
these results, the proposed solutions dealing with multi-
resolution problem will be more sound and reasonable.
1.2 Method and structure of paper
To quantify the multi-resolution characteristics, the author
analyses in detail (1) the functions of each discipline inside LA
and (2) the function and responsibility of each management
level dealing with LA activities. Then base on the technical
guideline, the detailed spatial information used and acquired
will be created.
In the scope of this study, we have used the concept of
resolution as (Veregin, 1995):
- Spatial resolution — for vector data which means the
minimum size of object that must be presented
- Thematic resolution — for category type: land use class
- This paper concentrates on spatial resolution and thematic
resolution.
To experience the use of quantification work, a solution to
exchange and acquire land use data between land registration
and land use management, between district and national levels
will be demonstrated.
The paper consists of five sections. Section 2 presents the multi-
discipline and multi-level management in Vietnam LA. Results
are the understanding of concept management in SD used and
required. Section 3 analyses and summaries the detailed
resolution of SD used and required at each management level
and discipline. Section 4 presents the case study. The final
section — section 5 — summaries and further research questions.
2. THE MUTLTIPLE MANAGEMENT LEVELS AND
DISCIPLINES OF VIETNAM LAND
ADMINISTRATION
To better understand Vietnam LA system, we will analyse from
two views: (1) The regulation point of view where the legal
documents stipulate the mandate and responsibility of each
discipline and management level and (2) The fact point of view
Where base on de facto interests or real functions inside the LA
system.
2.1 The regulation point of view
LA is defined as “the processes of determining, recording and
disseminating information about the tenure, value and use of
land when implementing land management policies”, (UN-
ECE, 1996). However, LA system is different from country to
country (Steudler, et al, 2004; Williamson, 2004; Ting and
Williamson, 1999).
Four management levels in Vietnam, where LA is carried out,
are illustrated at figure 1. The left hand side is the management
levels corresponding with each People’s committee. The right
239
hand side is organizations in charge of LA activities. From
national level to communal level, these organizations range
from Ministry to Local staff.
National level: Government 4
Ministry of Natural
Resources & Env
d
Provincial level A
Provincial People Cominittec 1 3
Dept. of Natural
resources & Env.
-
1
District level A
District People Conunittec 3 Ÿ
Div. of Land
Administration
|
"
Communal level: A
Communal PeopleConmuttec d
A Local officer |
Managentent line —
"Technical guideline ———P
Data reported lme —— P
d
Figure 1: Vietnam land administration structure
Regarding the information and data flow, one can see that data
is always generalized from lower level to higher management
level. This partly explains why data can be inconsistent when
generalized via many management steps.
There are many distinctive disciplines working inside LA
system. However, these disciplines are very close to each other.
This relationship is presented as the relation between three
aspects of (1) land use, (2) land ownership and (3) land value,
see (Dale and McLaughlin, 1999). Vietnam LA has several
disciplines. (Land law, 2003) stipulated those disciplines as
follow:
- A Land use policy
- Land use planning/ Plan
- Land use statistic
- Administration on land
- Land valuation
- Land allocation
- Land registration
- Cadastre survey & mapping
~ Etc.
2.2 De facto point of view
After analysing the functions, relations and the role, we can
group all the above disciplines into two major groups, which
carried out at two correspondent management levels.
The first group includes land use policy, land use planning,
state management on land, etc. This group concentrates on
macro management where land use policy and macro land use
planning are carried out. This group of disciplines is normally
executed at national level. We name this group as macro land
use management (MLU-Group).
The second group includes land allocation, land use rights
registration, land valuation, cadastral survey and mapping, etc.
This group has objectives to implement land use policy in
practice. Therefore, this group has objectives to register the
land use rights. This normally executed at local level —
