[1]李玉山,韩仕峰,汪正华.黄土高原土壤水分性质及其分区[J].水土保持研究,1985,(02):1-17.
Li Yushan,Han Shifeng,Wang Zhenghua.SOIL WATER PROPERTIES AND ITS ZONATION IN THE LOESS PLATEAU[J].Research of Soil and Water Conservation,1985,(02):1-17.
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Li Yushan,Han Shifeng,Wang Zhenghua.SOIL WATER PROPERTIES AND ITS ZONATION IN THE LOESS PLATEAU[J].Research of Soil and Water Conservation,1985,(02):1-17.
黄土高原土壤水分性质及其分区
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
期数:
1985年02期
页码:
1-17
栏目:
出版日期:
1900-01-01
- Title:
- SOIL WATER PROPERTIES AND ITS ZONATION IN THE LOESS PLATEAU
- 摘要:
- 黄土高原土壤具有很好的调节作物供水的功能，这和土壤的水分性质有关。本文研究了土壤的持水性能、有效性能和移动性能等。影响黄土高原土壤水分性质的主要因素是土壤质地。文内绘制了包括五个质地带的土壤质地分区图。田间持水量在轻壤土、中壤土和重壤土范围内均为20%±2，未表现出明显相关。萎蔫湿度则几乎完全决定于土壤质地。文内绘制了田间持水量和萎蔫湿度的等值线图。土壤水物理蒸发影响深度可达2-3米。两米土层内物理蒸发失水量轻壤土和中壤土达田间持水量的25-35%；具有下伏粘化层的重壤土，60厘米以下矢水量不大于10%。后者为作物准备了较多的储水。文内列出了不同质地土壤的水分特征曲线的经验方程，所有资料汇总于土壤水分性质表中。本研究结果为合理利用土地提供了基础数据。
- Abstract:
- The soils of the loess plateau are available in regulating water supplement to crops that is related with soil water properties. Hold-water ability, aviability and movement behaviour of soil water are studied in this paper. Soil texture is the main factor affecting soil water properties. The map of soil texture zonation containing 5 texture belts is given. Field capacity of soils is about 20% ranging light, medium and heavy soils. Evident correlation between field capacity and soil texture is not shown in the range of loam soils. Permanent wilting percentage depends closely on the soil texture. The map of isopleth of FC and PWP are given in present paper. The soil depth affected by soil evaporation can reach 2-3 m deep. During long time of soil evaporation the average loss amount of water in the root zone of 2 m is 25-35% of FC for the light and medium loam soils and less than 10% of FC in the layer below toplayer for the heavy loam soil with an underlying clay-rich horizon. The later remain large amount of water storage in soils to benefit crop growth. The experiential equations of water characteristic curve of different texture soils are given.All data are tabulated in a general table of soil water properties. The results in present paper provide basic data for rationally using and resources in the Loess Plateau.
参考文献/References:
[1] 南京土壤研究所, 中国土壤, 科学出版社, 1978, 204页.
[2] S. A.泰勒等, 物理的土壤学, 农业出版社, 1983, 208页.
[3] D. 希勒尔, 土壤和水, 农业出版社, 1981, 175页.
[4] L. A. Richards, Saline and Alkali Soils, 1954, p109.
[5] 李玉山、喻宝屏, 土壤深层储水对小麦的增产效应研究, 土壤学报, 17卷, 1930(1), 43-54页.
[6] 李玉山、喻宝屏, 土壤深层储水对杭花的增产效应研究, 土壤学报, 18卷, 1981(4), 383-388页.
[7] 曹淑定等, 吴旗飞播沙打旺草地的土壤水分动态研究, 水土保特遍报, 1983(5), 53-58页
[8] 李玉山, 黄土区土壤水分循环特征及对陆地水分循环的影响, 生态学报, 3卷, 1983(2), 91 -101页.
[9] 李玉山, 陕西东部旱原农田土壤墒情调查, 土壤, 1978, 279-285页.
[10] 李玉山, 土水分状况与作物生长, 土壤学报, 10卷, 1962(3), 290-304页.
[11] 石玉洁等, 蒸发条件下土壤导水率和扩散率的测定, 水利学报, 1984(2), 33-38页.
[12] 韩仕峰等, 两种质地土壤的蒸发性能和表层松土效应, 土壤通报, 1982(6), 4-7页.
[13] FAO, Crop Response to Water.1977.
更新日期/Last Update:
1900-01-01