Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986
545
The application of remote sensing in Song-nen plain
of Heilongjiang province, China
Zhang Xiu-yin, Jin Jing, Cui Da
Subcenter of Agricultural Remote Sensing Heilongjiang Academy of Agri. Science, China
ABSTRACT: This report describes the development and the results that obtained though the practical application
of remote sensing technology to evaluate and classify the natural resources and land use in Song-nen plain of
Efeilongjiang province in 1985. The method were used visual interpretation and multitemporal analysis techniques
to derive information from lanasat images and combined with topograph maps as well as airphotos which were used
for the detail of the area that was not clear on the landsat images and for measuring; the coefficient of land
use. The thematicmaps at 1:200000 scales prepared on land use and other specialistic maps. This result gave a
way of how the natural resources and land use in our province can be inventory, evaluation and management by
using remote sensing data on the cost minimizing basis.
1 INTRODUCTION
Song-nen plain is the main region of both Heilongjia-^
ang province and nation for agricultural and animal
husbandry. It's located in the west part of Heilong
jiang province China. The total area of Song-nen
plain, is 103 thousend square kilometers. It's between
Song Hua river and Nen Jiang river and surroundings.
This is first time to inventory, evaluate and classi
fy the natural resourcers and land use by using remo
te sensing data from landsat images.The aim of the
study is that to explore a way by using remote sens
ing data accoding to our province condition, and to
know how mach the natural resources con be used as
well as how the land was used in the past years.
2 GENERAL DESCRIPTION
Song-nen plain is situated in fhe west part of Heilo-
ongjiang province,China. It's between latitude 44 10'
N—48 35 'N and longitude 121 20' E— 128 05 ' E - Main
part of the area (center and south-west part'is low
plain which altitude about 120 — 200 M above the sea
level and studded with lakes, reservoirs, ponds and
pools.Tn the north-east part of the plain is gentle
slop hills. The clamate of this region belongs to
semiarid. The rainfull of the area is about 350-500
mm, and 60 percent concentrated in July and August.
( Figure 1 ).
3 MATERIALS
This study is based on infomation obtained from MSS
landsat images( at H2 00000 scale )combined with to
pograph maps ( at 1:506000 scale ) and airphotos whi
ch were used for the detail of the area where was not
clear on the landsat images. The images selected were
E - 22457, E-30930, E-22438, E-22276, E-22261, E-312-
01, E-22296, E-30192 etc. Total of number were 18
sheets, in defferent months and years. The false col-
lor composite were made by applying different filter
and techiques and that to be more effective for in
terpretation land use. The sample area, the landsat-D
TM image were used also.
4 THE METHOD
This invintory of natural resources and land use was
based on visual interpretation from landsat images
and to go to the field for check.
The steps of the work as follow:
1. Preparation
It included that landsat images ( both MSS and TM at
a scale 1:200000 ), topograph maps ( at 1:50000 scale
and airphotos were collected, basic maps and transpa-
rencemaps were made (both at scale 1:200000 ).
2» Interpretation of landsat images in lab.
First, interpretation marks were established by going
to the field and in the lab. and then defined stanard
of classification and delineated of the interpreta
tion from landsat images. The samjbre area were sele
cted also in this step.
3. Field work for vhe interpretation check.
It’s included that check for the accuracy of inter
pretation and correct the errorwhich were interpre
ts ted. 68 number of sampling area for checking , and
the total number of checked field were 11 5. The area
of checked were about 73.647 thousend hac. and about
10% of the total area. The accuracy of interpretation
was 94-7 percent.
4. Making the final maps and measurement calcula
ting the areas.
The final maps completed were present land use map
and natural resourcem maps such as natural pasture
and grassland map, forest map, water resourees map
and reed distribution map of Song-nen plain at a sca
le 1:200000.
The method of calculation area was that if the cal
culated area was larger than 1 cm square on the map
which were measured by planimeter and the calculated
area was smaller than 1 cm square which was measured
by caunting the squares that f r0 m the standard trans
parent square paper which covered on final map.
The total area = the number of squares times
one square representative area
The classification of land use as follow5
Agricultural land ( including cultivated land, paddy
field and permanent vegetable field ).
Range land ( including natural pastureland and grass
land ).
Wood land ( including forest, shrub and brushes ).
Water area ( including rivers and lakes, reservoirs,
ponds and pools ).
Urban or built up areas (including cities and towns,
and industry areas ).
Reed land
Communication land ( including railway and road area)
Unutilization land ( including marsh land, sand land,
bare rock and soline-alkaline land).
