中国农业气象

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地膜覆盖下玉米田土壤水热生态效应试验研究

王琪;马树庆;郭建平;刘玲;沈钟声;   

  1. 吉林省气象科学研究所,吉林省气象台,中国气象科学研究院,中国气象科学研究院,蛟河市新站农业站 长春130062
  • 出版日期:2006-06-10 发布日期:2006-06-10
  • 基金资助:
    国家十五攻关项目“重大农林病虫害及农业气象灾害控制技术研究”(20004BA509B15)

Example Study on Soil Water and Thermal Effect of Corn Plastic Mulching

WANG Qi~(1),MA Shu-qing~(2),GUO Jian-ping~(3),LIU Ling~(3),SHEN Zhong-sheng~(4)(1.Meteorological Institute of Jilin Province,Changchun 130062,China;2.Meteorological Observatory of Jilin Province;3.Chinese Academy of Meteorological Science;4.Agricultural Station of Jiaohe County)   

  • Online:2006-06-10 Published:2006-06-10

摘要: 为进一步了解地膜覆盖下的土壤水热生态效应,在吉林省东部开展了玉米地膜覆盖栽培试验。结果表明,晴天地膜覆盖使耕层地温增加3~5℃,阴雨天增温不明显。晴天地膜覆盖可使土壤湿度较对照提升2~4个百分点,阴雨天处理间土壤湿度差别不大,多雨时段地膜覆盖下土壤湿度明显低于对照。地膜覆盖能明显改善玉米田土壤水热生态条件,对促进作物生长发育、抗旱防涝起到一定的作用。

关键词: 地膜覆盖, 玉米田, 吉林省,生态效应

Abstract: The experimental study on maize mulched with the plastic film was conducted in the East Areas of Jilin Province to determine the ecological effects,such as water and thermal effects.The results showed that the plastic mulching could rise the soil temperature by 3~5℃ and increase the accumulated temperature by about 180℃ in fine day,while the soil moisture content increased by 2~4%.The soil temperature and moisture increase was not significant in overcast and rainy day.The soil moisture content under the plastic mulching condition in heavy rainy days was significant lower than that without plastic mulching.The soil water and thermal conditions could be improved by the plastic mulching.The growth and development of maize were improved as well.

Key words: Plastic mulching, Plastic mulching, Maize, Jilin Province, Ecological effect