182 
It can be seen from Tab.3 that the conversion process took place 
mainly between cropland, woodland, grassland and built-up land, 
water. 
Thereinto, the conversion from cropland to urban land is the 
most dominating. This illustrated that urban expanding took use 
of a lot of cropland. In addition, some urban land was converted 
to water area, which was caused by the Three Gorges dam 
sluicing and nearby town submerged. It is obvious that the 
increase of construction land and water area is at a cost of the 
decrease of cropland, woodland, grassland. 
4. CONCLUSION AND DISCUSSION 
1) All the above analyses have shown that the land use and land 
cover status in Three Gorges Reservoir Area have changed 
significantly in the recent 30 years. Cropland, woodland, 
grassland decreased continuously, at the same time, water body 
and built-up areas increased obviously. 
2) Build-up areas increased continuously, and the increasing 
speed had being enhanced based on a bigger number, it arrived 
at the biggest 2.894% in 1995-2000 period, which were at the 
cost of cropland, woodland, grassland. 
3) In 2000-2005 period, water body increased most quickly by 
1.918% on the dynamic degree of change at the expense of 
woodland, grassland and even built-up areas, as a result of three 
gorges dam built. 
4) The research also released that the land use changes in Three 
Gorges Reservoir Area are drived by two main forces: one is the 
growing population with the non-agriculture population scale 
enlarging, another is the constructing Three Gorges Project, 
which brought migration moving, land submergence, and 
accelerated the regional economy, leading to the rapid rise in the 
use of construction land. 
REFERENCES 
Ding F, Chen W H. Analysis of Land Use Changes in Fujian 
Province Based on 3S Technology[J], Journal of Fujian Normal 
University (Natural Science Edition) 2004. 20(l):92-98. 
Hunter L M, Gonzalez M de J G, STEVENSON M et al., 
Population and land use change in the California Mojave: 
Natural habitat implications of alternative futures [^.Population 
Research and Policy Review, 22:373-397. 
J. Y. Liu, H. Q. Tian, M. L. Liu, et al., “China’s changing 
landscape during the 1990s: Large-scale land transformations 
estimated with satellite data, “ Geophysical Research Letters, 
2005, Vol. 32. 
Liu J Y. The macro investigation by remote sensing technology 
and dynamic research of China’s resource and environment[M], 
Beijing: China Science and Technology Press. 1996. 
Meng J J, Shen W M, Wu X Q. Integrated Landscape Ecology 
Evaluation Based on RS/GIS of Three-Gorge Area[J]. Acta 
Scientiarum Naturalium Universitatis Pekinensis, Vol.41, No.2 
Mar.2005. 
Q. Wang, W. J. Wang, H. J. Luo, et al., “Macro ecology 
monitoring techniques on remote sensing,” Beijing, China: 
China environment science press, 2006:124-125. 
Semwal R L, Nautiyal S, Sen K K, et al., Patterns and 
ecological implications of agricultural land-use changes: a case 
study from central Himalaya, India[J].Agriculture, Ecosystems 
and Environment. 102 (1): 81-92. 
Shi P J., Gong P.> Li X B, et al. Method and practice on 
landuse cover changes research. Beijing: Science press. 1996. 
Zhao S H, Feng X Z, Du J K. Spatio-temporal changes analysis 
of land use at county level based on RS and GIS[J].Bulletin of 
Surveying and Mapping.2003(3):16-17. 
Z. Q. Huang, W. C. Zhou, J.M. Zhou, M.C. Zhu, “ Land Use of 
the Three Gorges Reservoir Area and the Effect on Its 
Landscape Pattern in the Recent 50 Year,” Wu han University 
Journal of Natural Sciences, Wuhan, China, 2006,11:910-914. 
[Foundation: China’s National Social Development Research 
Programme funded by the Ministry of Science and Technology, 
NO.2004DIB3J107]