草炭处理下玉米的水分特点  

The Moisture Status of Corn under the Condition of Spreading Peat Composed of Rotten Mosses

作　　者：蒋进[1] 王周琼[1] 马健[1] 

机构地区：[1]中国科学院新疆生态与地理研究所,乌鲁木齐830011

出　　处：《干旱区研究》2003年第2期110-113,共4页Arid Zone Research

基　　金：日本国际协力事业团 1997~ 2 0 0 0年度"利用草炭绿化荒漠"协作研究项目;中国科学院重大国际合作特别支持项目"利用草炭进行荒漠绿化的研究"的支持

摘　　要：本文对在草炭处理下玉米的水分状况进行了较为系统的研究。草炭对玉米的蒸腾作用速率 ,气孔导度等水分参数的变化有较大的影响。实验表明 ,施入草炭改善了玉米的水分状况 ,一定程度上提高了玉米的水分利用系数 ,降低了玉米对环境变化的敏感性 ,提高了玉米的抗逆性。In this paper, the moisture status of corn under the condition of spreading peat composed rotten mosses is systematically researched in the experimental field (455 m a.s.l.) at Fukang Desert Ecosystem Observation and Experiment Station, Chinese Academy of Sciences. In the study area, the annual temperature, sunshine duration, precipitation and evaporation are 6.2℃, 2,562.5 hours, 183.7 mm and 1,945.2 mm respectively. The results show that to spread peat composed of rotten mosses affects strongly the moisture parameters of corn, such as the transpiration and stomatal conductance. The experiment reveals that, by spreading peat composed of rotten mosses, the moisture utilization ratio of corn can be increased to a certain extent, the sensitivity of corn to the environment change can be reduced, and the converse-succession-resistant capability of corn can be increased.

关 键 词：玉米 草炭 水分特点 蒸腾速率 气孔导度 水分利用系数 抗逆性 

分 类 号：S141[农业科学—肥料学]