| 于爱忠,黄高宝,冯福学.不同耕作措施对冬小麦农田土壤水分和温度的影响[J].干旱地区农业研究,2009,27(1):84~88 |
| 不同耕作措施对冬小麦农田土壤水分和温度的影响 |
| The effect of different tillage on soil water and soil temperature of winter-wheat field |
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| DOI：10.7606/j.issn.1000-7601.2009.01.17 |
| 中文关键词: 免耕秸秆覆盖 免耕 土壤含水量 土壤温度 |
| 英文关键词:no-tillage with straw retention no-tillage soil water soil temperature |
| 基金项目:甘肃省科学技术攻关计划项目(2GS042-A41-002-01)； 国家科技支撑计划项目(2007BAD89B17) |
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| 中文摘要: |
| 结果表明,冬小麦返青至成熟,0~150 cm土层深度范围内免耕秸秆覆盖处理土壤平均含水量较免耕和传统耕作处理高0.21%和0.23%,免耕对土壤含水量影响不明显;冬小麦收获后,0~150 cm土层深度范围内土壤含水量平均值的高低顺序为:免耕秸秆覆盖>免耕>传统耕作。冬小麦返青至成熟期间,无论晴天还是阴天,0~25cm土层深度范围内免耕秸秆处理土壤温度均低于免耕和传统耕作处理,免耕秸秆覆盖和免耕处理土壤温度平均值较传统耕作分别低2.8℃和2.6℃,免耕秸秆覆盖处理可以稳定土壤温度。相关分析表明,土壤含水量与土壤温度存在显著负相关关系。 |
| 英文摘要: |
| Based on the long term field experiment in inland river irrigation area,the effect of different tillage treatments on winter-wheat farmland soil water and temperature was investigated.The result showed that the average soil water content in 0～150 cm layer of no-tillage with straw retention(NTS) was 0.21%,0.23% higher than that of no-tillage(NT) and conventional tillage(T) respectively during the stage of winter-wheat turning green to maturating.The average soil water content in 0～150 cm layer after winter-wheat was harvested were showed as follows: NTS>NT>>T.The soil temperature in 0～25 cm layer of NTS was lower than that of NT and T in sunny day and cloudy day during the stage of winter-wheat turning green to maturating.The average soil temperature of NTS was 2.8℃ and 2.6℃ lower than that of T.The NTS could steady the soil temperature.There was significantly negative relationship between soil water content and soil temperature. |
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