中国农业气象

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农田秸秆覆盖保墒研究

胡实;彭娜;谢小立;王凯荣;   

  1. 中国科学院亚热带农业生态研究所,中国科学院亚热带农业生态研究所,中国科学院亚热带农业生态研究所,中国科学院亚热带农业生态研究所 长沙410125,中国科学院研究生院,长沙410125,长沙410125,长沙410125
  • 出版日期:2007-02-10 发布日期:2007-02-10
  • 基金资助:
    中国科学院知识创新工程(KZCX3-SW-441)

A Review:Study on Water Conservation in Cropland with Stalk Cover

HU Shi1, 2, PENG Na1, XIE Xiao-li1, WANG Kai-rong1(1. Semitropical Institute of Agricultural Ecology, CAS, Changsha 410125, China; 2. Graduate School of Chinese Academy of Sciences)   

  • Online:2007-02-10 Published:2007-02-10

摘要: 秸秆覆盖不但能够改变田间辐射、温度、湿度、风速等影响蒸发的外界条件,还改善了土壤的团粒结构,提高了土壤的供水能力,从而起到了改善田间小气候环境、减缓土壤水分波动、蓄水保墒的作用。农田秸秆覆盖后作物苗期棵间土壤蒸发明显减少,使旺盛生长期可利用水分增加,提高了水分的利用率。

关键词: 秸秆覆盖, 保墒, 综述

Abstract: Stalk cover changed not only the conditions out of soil, such as solar radiation, air temperature, air humidity and wind velocity, but also soil granule structure and water supply in soil. As result, it improved microclimatic conditions and mitigated soil moisture fluctuation in cropland. Because soil evaporation was reduced obviously in the earlier stage of crop growth, available water was increased during flourishing stage of crops.So water use efficiency was increased.

Key words: Stalk cover, Stalk cover, Water conservation, Review