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罗布泊地区土壤多样性研究

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[目的]利用土壤多样性理论方法分析罗布泊地区的土壤多样性.[方法]利用ArcGIS对空间数据进行矢量化,获得空间数据的属性值.多样性指标的计算和成图则在Excel中完成.[结果]罗布泊地区土壤类型单一.在地形地貌上,石膏质盐壳上发育的土壤亚类,其丰富度指数、多样性指数和均匀度值都很高;在地质构造单元新生代盆地上发育的土壤亚类,其丰富度指数和多样性值数是最高的,但是均匀度却是最低的.面积与丰富度指数、多样性指数与均匀度指数之间均符合二次多项式函数关系.[结论]土壤多样性受到土壤分类精度、地块单元面积以及所包含各亚类面积等综合因素的影响.
Studies on Soil Dodiversity in Lop Nor Lake Area
[Objective]To analyze the soil diversity of Lop Nor by soil diversity theory and measure method.[Method]To obtain the spatial properties by vectorization way based on ArcGIS and diversity index and statistical data based on Excel software . [ Result] There is few soil group in Lop Nor. On the different terrain unit , richness,diversity and uniform indices with the soil subgroup distribution of gypseous salt crust are very high; On the different geologic unit, richness and diversity indices with the soil subgroup distribution of cainozoic basin are the highest,but , the uniform indices are the lowest. Totally , correlation between unit area and richness , diversity and uniform fit quadratic equation . [ Conclusion]Soil diversity is affected by comprehensive factors including soil classification, unit area, soil subgroup area and so on.

Lop Norsoildiversity

刘洪蓬、蒋平安、武红旗、孔德庸

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新疆农业大学革业与环境科学学院,乌鲁木齐,830052

中国农业大学资源环境学院,北京,100094

罗布泊 土壤 多样性

国家自然科学基金

40671080

2011

新疆农业科学
新疆农业科学院 新疆农业大学 新疆农学会

新疆农业科学

CSTPCDCSCD北大核心
影响因子:0.698
ISSN:1001-4330
年,卷(期):2011.48(4)
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