| 秸秆覆盖量对农田土壤水分和温度动态的影响 |
| |
| 引用本文： | 王兆伟,郝卫平,龚道枝,梅旭荣,王春堂.秸秆覆盖量对农田土壤水分和温度动态的影响[J].中国农业气象,2010,31(2):244-250. |
| |
| 作者姓名： | 王兆伟 郝卫平 龚道枝 梅旭荣 王春堂 |
| |
| 作者单位： | 1. 山东农业大学水利土木工程学院,泰安,271018
2. 中国农业科学院农业环境与可持续发展研究所/农业部旱作节水农业重点开放实验室,北京,100081 |
| |
| 基金项目： | 国家863计划课题(2006AA100204); 国家科技支撑计划项目(2006BAD29B02) |
| |
| 摘 要： | 2009年4-11月,在山西寿阳旱地农业试验区对覆盖量为1500、3000、4500、6000kg/hm24个不同秸秆覆盖量处理和不覆盖处理的春玉米试验小区进行田间定位观测,采用自动记录土壤剖面水分测定仪和自计温度测定仪实时观测了不同秸秆覆盖处理的玉米全生育期的土壤水分和温度动态,结合生育期土壤蒸发的动态观测,研究了农田秸秆覆盖量对土壤水热动态的影响。结果表明,秸秆覆盖在作物生长前期和旱季对土壤表层的土壤蒸发和温度调控效果明显,秸秆覆盖量越大效果越明显。按照对土壤水分和温度的综合作用,试验区域秸秆覆盖对土壤水分和温度调控效果最佳秸秆覆盖量为4500kg/hm2;秸秆覆盖量越高对土壤蒸发的抑制效果越好,但覆盖量对降雨入渗和土壤温度的影响受降雨强度、土壤湿度、土壤类型等具体条件的不同而产生不同的效果,其规律有待进一步研究。
|
| 关 键 词： | 秸秆覆盖量 土壤水分动态 土壤温度动态 |
Effect of Straw Mulch Amount on Dynamic Changes of Soil Moisture and Temperature in Farmland |
| |
| WANG Zhao-wei,HAO Wei-ping,GONG Dao-zhi,MEI Xu-rong,WANG Chun-tang.Effect of Straw Mulch Amount on Dynamic Changes of Soil Moisture and Temperature in Farmland[J].Chinese Journal of Agrometeorology,2010,31(2):244-250. |
| |
| Authors: | WANG Zhao-wei HAO Wei-ping GONG Dao-zhi MEI Xu-rong WANG Chun-tang |
| |
| Institution: | 1.College of Water Conservancy and Civil Engineering,Shandong Agriculture University,Taian 271018,China;2.Institute of Environment and Sustainable Development in Agriculture/Key Laboratory of Dryland Agriculture,MOA,Beijing 100081) |
| |
| Abstract: | The effects of straw mulch amount on soil water and temperature were studied in dryland agriculture areas in Shouyang of Shanxi province. The dynamic changes of soil moisture,and temperature conditions beneath mulches of maize straw applied at different amount(1500,3000,4500,6000kg/ha ) and soil transpiration were investigated from April to November in 2009,the whole growth season of spring maize. The results showed that straw mulch had a beneficial effect on soil transpiration and temperature of topsoil la... |
| |
| Keywords: | Straw mulch amount Dynamic change of soil moisture Dynamic change of soil temperature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
