Updated Evaluation and Analysis of Farmland Classification in Qilihe District of Lanzhou

doi:10.6046/gtzyyg.2012.03.25

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Abstract This paper used high-resolution images such as QuickBird and WorldView to interpret agricultural map spots of Qilihe,and took the spots as the study objects. According to the actual situation of Qilihe,the authors combined the Delphi method with experts’ opinions to determine seven evaluation factors such as the terrain slope,effective soil depth,soil PH value and the irrigation assurance rate for agricultural land updated classification. Detailed spot investigation method and calculation model in farmland classification procedures were used to amend and update the Qilihe agricultural spot. The results show that the quality of the natural agricultural land tends to decline, the agricultural land use has no significant changes, the agricultural input and output levels somewhat decrease, and the agricultural lands of various classes show certain spatial distribution regularity.

Keywords GeoEye-1 image homomorphic filtering wavelet transform band calculation composition haze elimination

TP79

Issue Date: 20 August 2012

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	WU Shou-jiang
	LI Liang
	GONG Ben-xu
	GONG Mei

Cite this article:

WU Shou-jiang,LI Liang,GONG Ben-xu, et al. Updated Evaluation and Analysis of Farmland Classification in Qilihe District of Lanzhou[J]. REMOTE SENSING FOR LAND & RESOURCES, 2012, 24(3): 140-145.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2012.03.25 OR https://www.gtzyyg.com/EN/Y2012/V24/I3/140

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