| Research on soil nutrient status and soil fertility evaluation based on GIS |
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| DOI：10.7606/j.issn.1000-7601.2012.02.02 |
| Key Words: evaluation of farmland fertility GIS AHP fuzzy evaluation |
| Author Name | Affiliation | | Lü Ning | Key Laboratory of Oasis Ecology and Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832003, China | | Lü Xin | Key Laboratory of Oasis Ecology and Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832003, China | | ZHANG Ze | Key Laboratory of Oasis Ecology and Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832003, China | | LI Xinwei | Key Laboratory of Oasis Ecology and Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832003, China | | WANG Haijiang | Key Laboratory of Oasis Ecology and Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832003, China | | CHEN Jian | Key Laboratory of Oasis Ecology and Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832003, China |
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| Abstract: |
| Under the support of GIS, fuzzy evaluation method, analytic hierarchy process (ahp) and synthetic index method were used to evaluate the fertility of ultivated land in a state farm in Xinjiang. The results suggested that the study area of 6
291.65 hm2 farmland could be divided into six grades, grade one was 196.71 hm2, grade two was 480.37 hm2, grade three was 825.48 hm2, grade four was 1 709.68 hm2, grade five was 2 312.05 hm2 and the grade six was 767.36 hm2, and the fertility of grade one to six accounted for 3.13%，7.64%，13.12%，27.17%，36.75%，12.20% respectively. The field survey and analysis show that the local actual conditions are in line with these results, such as the established quantitative and half quantitative index system for farmland fertility evaluation, the obtained information of the area of each grade of farmland fertility and its distribution as well as the improvement measures put forward. |
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