| 曾辰,邵明安.黄土高原水蚀风蚀交错带柠条幼林地土壤水分动态变化[J].干旱地区农业研究,2006,(6):155~158 |
| 黄土高原水蚀风蚀交错带柠条幼林地土壤水分动态变化 |
| Soil moisture variation of young Caragana korshinskii artificial shrubland in the wind-water erosion crisscross region of the Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2006.06.35 |
| 中文关键词: 黄土高原 水蚀风蚀交错带 柠条林坡地 土壤水分 变化模拟 |
| 英文关键词:the Loess Plateau water-wind erosion crisscross region Caragana korshinskii slope land soil moisture variation soil moisture simulation |
| 基金项目:中国西部环境与生态科学重大研究计划(90102012)； 西北农林科技大学“创新团队”计划 |
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| 中文摘要: |
| 沿坡面布点,通过中子仪观测人工柠条幼林坡地小区土壤含水量的垂直变化,并对储水量的时空变化进行模拟和预测。结果表明:柠条幼林地上、中、下不同坡位0~400 cm土壤剖面储水量动态变化趋势一致,即雨季迅速增加,冬季变化较小,春季至下一个雨季初迅速下降。柠条幼林坡地土壤剖面储水量表现为从坡顶至坡底呈逐渐增大的趋势。土壤水分消耗量从坡顶至坡底也呈逐渐增大的趋势。柠条地土壤储水量与坡面位置和时间的关系可用一个二元三次多项式来表达。 |
| 英文摘要: |
| The temporal-spatial variation of soil moisture content was studied through measuring soil moisture along the slope plot using neutron probe in a manmade Caragana korshinskii slope plot.In addition,temporal-spatial change of distribution of soil moisture content was simulated and predicted.The Results indicated that the change of soil moisture content in 0～400 cm depth was consistent from upslope to down slope.Soil moisture increased greatly in rainy seasons,changed a little in winter and decreased rapidly from spring to next rainy season.Soil moisture content increased along the slope from upslope to down slope,while soil moisture expense increased along the slope,too.The relationship between soil moisture content,slope position and time can be expressed through a binary cubic polynomial. |
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