| 摘要: |
| 以陕北农牧交错带的荒漠化土壤为研究对象，通过多元相关分析、回归分析和因子分析，确定了荒漠化程度的土壤评判指标。结果表明，评判土地荒漠化程度时，土壤物理性质指标应选择0.25～0.05 mm砂粒含量，土壤化学性质指标应选择土壤有机质含量，并运用这两个指标建立了荒漠化程度土壤评判指标体系，即通过荒漠化土壤表层0～20 cm上述两个指标的量值来评判荒漠化程度。 |
| 关键词: 土地荒漠化程度 土壤评判指标 0.25～0.05mm砂粒 土壤有机质 |
| DOI： |
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| 基金项目:国家自然科学基金项目（30571527）;教育部科技重点项目(03157) |
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| Determination of index for judging the desertification degree of land in the interlaced zone for farming and animal husbandry |
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| Abstract: |
| Taken the desertification land of interlaced zone for farming and animal husbandry in North Shaanxi as the research subject,through the correlation multi-analysis,the regression and the factor analysis,this paper defined a desertification soil degree judgment index.The result indicated that the soil physical property should choose the 0.25-0.05 mm sand grain content,the soil chemistry property should choose the soil OM in the process of degree judgment.Determination system of index for judging the desertification degree through 0-20 cm and surface was established. |
| Key words: desertification degree soil judging index 0.25-0.05 mm sand grain soil OM |
