Cultivated Land Quality Assessment Based on SPOT Multispectr al Remote Sensing Image:A Case Study in J imo City of Shandong Province
Received date: 2008-02-01
Revised date: 2008-06-01
Online published: 2008-09-25
The cultivated land quality assessment study was carried out in Jimo city, Shandong Province, based on SPOT multispectral remote sensing image (2004) and data using in cultivated land fertility survey in 2004. Cultivated land quality assessment indicators were abstracted from SPOT multispectral image, e.g. NDVI, DVI and RVI, which represented soil fertility, water availability and soil degradation respectively. The assessment indicator system was constructed using the indicators mentioned above. By virtue of PSR framework, the assessment model was developed in order to explore the feasibility of RS technology in cultivated land quality assessment. The result showed that local cultivated land prevalently had a good quality. This paper classified the local cultivated land into six grades and corresponding suggestions were put forward respectively to promote policy making for land protection. The paper showed that the model was competent for its work in the study area and evaluation results would supply beneficial information for sustainable land management.
Key words： cultivated land quality assessment; evaluation indicator; Jimo city; RS; SPOT
FANG Linna, SONG Jinping . Cultivated Land Quality Assessment Based on SPOT Multispectr al Remote Sensing Image:A Case Study in J imo City of Shandong Province[J]. PROGRESS IN GEOGRAPHY, 2008 , 27(5) : 71 -78 . DOI: 10.11820/dlkxjz.2008.05.010
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