| 张淑杰,班显秀,纪瑞鹏.辽宁省农田土壤水分供应系数研究[J].干旱地区农业研究,2004,(4):48~51 |
| 辽宁省农田土壤水分供应系数研究 |
| Study of farmland soil water supply coefficient in Liaoning province |
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| DOI：10.7606/j.issn.1000-7601.2004.04.08 |
| 中文关键词: 土壤水分 供应系数 农田 辽宁 |
| 英文关键词:soil water water supply coefficient farmland Liaoning province |
| 基金项目:辽宁省科技厅基金项目(20022043) |
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| 中文摘要: |
| 以1980～2002年间18个代表站点常规气象资料与土壤湿度观测资料为基础,运用数理统计方法建立了辽宁省5个区域的农田土壤水分供应系数的动态变化模型。结果表明:土壤水分供应系数Kw与相对土壤有效水含量呈直线相关,辽宁省东部、北部、中部供水能力较强,西部和南部供水能力较差。 |
| 英文摘要: |
| Based on the routine weather data and the constant observational data of soil moisture for 18 representative stations during 19802002, the farmland soil water supply dynamic model of five regions in Liaoning province was established with mathematical and statistical method. The results showed that there was a straight linear relationship between soil water supply coefficient Kwand relative soil available water contents. The water supply ability of soil in the eastern, northern and central regions was better than that in the western and southern regions in Liaoning province. |
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