稻草覆盖对云南高原魔芋地温时空变化的影响

doi:10.3969/j.issn.1009-7791.2011.02.007

亚热带植物科学 ›› 2011, Vol. 40 ›› Issue (02): 24-26.DOI: 10.3969/j.issn.1009-7791.2011.02.007

稻草覆盖对云南高原魔芋地温时空变化的影响

董广平,卢俊,高祥武,董坤,王莹,高小俊,尹惠琴,陈王东,彭磊

（1.云南农业大学园林园艺学院，云南昆明 650201；2.云南省农科院富源魔芋研究所，云南富源 655500）

收稿日期:2010-12-24 修回日期:2010-12-24 出版日期:2011-06-10 发布日期:2011-06-10
通讯作者: 彭磊
作者简介:董广平(1979-)，女，河北承德人，硕士研究生，从事农田群落多样性控制植物病害的生态机理研究。
基金资助:
云南省教委基金（09C0263）、FAO技术援助项目（TCP/CPR/3106）

Effects of Straw Mulching on Temporal Spatial Variation of Soil Temperature of Konjac Plantation in Yunnan Highland Region

DONG Guang-ping,LU Jun,GAO Xiangwu,DONG Kun,WANG Ying,GAO Xiao-jun,YIN Hui-qin,CHEN Wang-dong,PENG Lei

(1.The College of Horticulture and Landscape, Yunnan Agricultural University, Kunming 650201, Yunnan China; 2.Fuyuan Institute of Konjac, Yunnan Academy of Agricultural Sciences, Fuyuan 655500, Yunnan China)

Received:2010-12-24 Revised:2010-12-24 Online:2011-06-10 Published:2011-06-10
Contact: PENG Lei

摘要/Abstract

摘要： 连续三年研究稻草覆盖对云南高原山地栽培‘花魔芋’地温时空变化的影响。结果表明：地温具有明显的时空变化特征，与‘花魔芋’的年生长周期各发育阶段的最适温度相吻合。稻草覆盖改变土壤热量交换层(地表层)的性质，具有延缓地温上升和下降的双向动态调控作用，调控幅度随气温升高而增大，随气温下降而加强；增强了同一土层温度的稳定性，其调控幅度随着土壤深度增加而降低，不同观察时间表现出13:00>19:00>7:00的规律。

关键词: ‘花魔芋’, 地温, 稻草覆盖, 时空变化

Abstract: The effects of straw mulching on temporal spatial variation of soil temperature of konjac plantation in Yunnan highland region were studied for three years continuously. The results showed that the soil temperature presented a significant variation, which were coincident with the optimum temperatures of konjac at different stage of annual growth cycle. Straw mulching altered the nature of soil thermal exchanging layer (soil surface), meanwhile it had a double-side effect on slowing down the raise and the decline of soil temperature, with the regulation breadth increasing when air temperature increased or decreased. As a result, the temperature stability in same soil layer was enhanced. However, the regulation breadth decreased while soil depth increasing. Observation time showed a rule as: 13:00>19:00>7:00.

Key words: konjac, soil temperature, straw mulching, temporal spatial variation

中图分类号:

S632

董广平,卢俊,高祥武,董坤,王莹,高小俊,尹惠琴,陈王东,彭磊. 稻草覆盖对云南高原魔芋地温时空变化的影响[J]. 亚热带植物科学, 2011, 40(02): 24-26.

DONG Guang-ping,LU Jun,GAO Xiangwu,DONG Kun,WANG Ying,GAO Xiao-jun,YIN Hui-qin,CHEN Wang-dong,PENG Lei. Effects of Straw Mulching on Temporal Spatial Variation of Soil Temperature of Konjac Plantation in Yunnan Highland Region[J]. Subtropical Plant Science, 2011, 40(02): 24-26.

稻草覆盖对云南高原魔芋地温时空变化的影响

Effects of Straw Mulching on Temporal Spatial Variation of Soil Temperature of Konjac Plantation in Yunnan Highland Region

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