Based on the color aerial photo and the field survey data, this paper analyze the information of various land use type change and spatial characteristics in Yanan Ecological Construction Demonstration Area from 2000 to 2003 by RS, GIS and statistics methods. We introduce the de-farming index and the de-farming Elasticity coefficient for the first time to evaluate the intensity, scale and spatial diversity of converting slope farmland into forestry and grassland, and to find out the range and pace of various land use type. This research illuminates the relationship between regional land use change and the project of converting slope farmland into forestry and grassland, and this research can give scientific suggestion to research on regional soil and water conservation and sustainable land use
Chen Guojian, Zhang Xiaoping, Li Rui, Yang Qinke
. Spatio-temporal Change of Land Use and Converting Slope Farmland into Forest and
Grassland in Yanan Ecological Construction Demonstration Area[J]. Chinese Agricultural Science Bulletin, 2005
, 21(5)
: 418
-418
.
DOI: 10.11924/j.issn.1000-6850.0505418
1李秀彬.全球环境变化研究的核心领域—土地利用/土地覆被变化的国际研究动向.地理学报,1996,51(6):553~558
2朱会义,李秀彬,何书金,等.环渤海地区土地利用的时空变化分析.地理学报,2001,56(3):253~260
3Lambin E F, Baulies X, Bockstael N, et al. Land-Use and Land-Cover Change (LUCC)—Implementation Strategy, IGBP Report 48& HDP Report 10. IGBP: Sttockholm, 1999.25~36
4刘盛和,何书金.土地利用动态变化的空间分析测算模型.自然资源学报,2002,17(5):533~540
5查书平,丁裕国,于红博,等.基于RS于GIS的长江三角洲土地利用变化分析.南京气象学院学报,2003,26(6):815~820
6张晓萍,李谭宝,杨勤科,等.基于RS和GIS的陕北丘陵沟壑区土地利用格局特征研究.水土保持学报,2002,16(1):39~43
7Wang L M, Feng R G, Yang Y F, et al. Spatial disparity of slope farmland and food security in Three Gorges Area. Journal of mountain science,2004,1(1):89~95
8张咏梅,包维楷,庞学勇.天保、退耕工程与环境可持续发展的关系.长江流域资源与环境,2004,13(3):296~300
9田均良,刘国彬.黄土高原退耕还林工程中的现存问题及有关建议.水土保持通报,2004,24(1):63~65