| GIS支持下的莆田县耕地基础地力评价与可持续利用对策 |
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| 引用本文： | 黄河.GIS支持下的莆田县耕地基础地力评价与可持续利用对策[J].福建农林大学学报(自然科学版),2004,33(2):245-249. |
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| 作者姓名： | 黄河 |
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| 作者单位： | 福建省农业厅土壤肥料技术站,福建,福州350003 |
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| 基金项目： | 福建省自然科学基金资助项目(B0010018). |
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| 摘 要： | 利用莆田县耕地地力实测资料,借助GIS和数学模型集成技术,分别对莆田县水田和旱地的地力状况及限制因素进行评价.结果表明,莆田县耕地以中、低产田为主,总体基础地力不高,二、三等耕地占全县耕地总面积的67.31%.耕地限制类型主要是旱限制型、酸限制型和缺K限制型,分别占全县耕地总面积的69.78%、60.26%和52.00%.在耕地地力及限制因素评价的基础上,提出了莆田县耕地的可持续利用对策.
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| 关 键 词： | GIS 聚类分析 耕地地力 限制因素 可持续利用 |
| 文章编号： | 1006-7817(2004)02-0245-05 |
| 修稿时间： | 2004年3月1日 |
Quality evaluation and sustainable use countermeasures of cropland in Putian County by GIS |
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| HUANG He.Quality evaluation and sustainable use countermeasures of cropland in Putian County by GIS[J].Journal of Fujian Agricultural and Forestry University,2004,33(2):245-249. |
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| Authors: | HUANG He |
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| Abstract: | Based on the recent investigation and testing materials of cropland quality, the quality of cropland in Putian County was evaluated and classified by GIS technology integrated with the model of dynamic cluster analysis. The results showed that the overall quality of the cultivated land was lower in Putian County. The area of the cultivated land with middle and lower yield accounted for 67.31% of the total. The major limiting types of the cultivated land were dry, acid and potassium deficient limitation. The areas of these limitation accounted for 69.78%, 60.26% and 52.00% of the total respectively. The sustainable use countermeasures of the cultivated land in Putian County was discussed based on the results of the evaluation. |
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| Keywords: | GIS dynamic cluster analysis quality of cultivated land limitation factor sustainable use |
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