LIS Combined With RS For A Long Term Sustainable
Land Use In Karst Terrane, South Western China
Ru Jinwen
Liu Guanghui
Ma Zulu
(Geological Academy Sinica, Institute of Karst Geology,
PO Code 541004, Guilin, Guangxi, PR China)
Commission N , Working Group 1
Key Words :
Abstract
Land use, Classification ,Landsat, Integration, GIS
The largest karst region in the world is located in South Western China. Soil loss and bar-
ren karst were serious due to deforestation and increasing of population in the past
decades. Land resources inventory by using TM data classification and GIS/LIS are the
basic assessment of a long term sustainable land use. SKset is the sofware for the land in-
formation system (LIS) developed in the last decade by author’s group. Zhenyun county,
Guizhou province in the eastern of karst terrane was chosen as the test area. County level
LIS was constructed successfully for decision making in protecting soil loss, suitable anal-
ysis, land use management etc.. 14 city/county in karst terrane are being extented to con-
struct LIS combined with RS in the term 1994— 1997.
INTRODUCTION
Karst is the terrane with solube rocks de-
ferring to the other terranes for the weak-
ness of ecosystem evironment. The word.
karst can be traced back to Pro—Indoeuro-
pean origins and derives from “Karra”
meaning stone. In Northern Yugoslavia is
also a regional name for a district near the
border of Trieste. |
Karst is widespread in China, covering one
third of whole country and exposed to the
surface over one million square kilometers.
One of the largest karst region is located in
south western China with an area of about
722
540,000 square kilometers and 79 million
population (Fig. 1).
Soil loss and desertification (barren karst)
were serious due to deforestation and in-
creasing of population in the past three
decades in the karst terrane. Land re-
sources inventory and management by Re-
mote Sensing (RS) and GIS/LIS are the
basic assessment of a long term sustainable
land use. Zhenyun county in the Eastern
of Guizhou province was chosen as the test
area because it located in the slope from
Yunan — Guizhou plateau to Hunan hills
with defferent karst geomorpholgies and
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996