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| Main Progress and Achievements in Land Quality Geochemical #br#
Assessment of Longyou, Zhejiang Province |
| CEN Jing， PAN Wei-feng, SONG Ming-yi |
| (Zhejiang Institute of Geological Survey, Hangzhou 311203, China) |
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Abstract According to mission requirements, the demonstration project of “land quality geochemistry assessment on county-level and city-level of Zhejiang province” is carried out in Longyou county, Zhejiang Province. Based on the needs of summary and demonstration, the methods, techniques, application, and achievements of land quality geochemical assessment in Longyou county are emphatically introduced. In order to get more scientific and reasonable assessment result, the geochemical assessment of land quality in Longyou area is taken according to the indoor and outdoor verification, adjusted index of assessment, index weight and assessment unit, the land is divided into five levels. In order to make use of the assessment results more convenient, the geochemical classification and gradation of farmland quality are integrated with superposition method, which shows a consistent result of different assessment methods, and reflects the differences of the same gradation. The land and resource department re-programs construction land around Longyou county by making use of the achievements in land quality geochemical assessment. After adjustment, the concentrated high quality farmland has been protected, and the construction land demand has been ensured.
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