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当前位置: 首页 > 文章 > 模拟增温对春小麦生长发育、根区土壤呼吸速率及酶活性的影响 河南农业科学 2016,45 (10) 55-59
Position: Home > Articles > Effects of Simulated Enhancement of Temperature on Growth and Root Soil Respiration Rate and Enzyme Activity of Spring Wheat Journal of Henan Agricultural Sciences 2016,45 (10) 55-59

模拟增温对春小麦生长发育、根区土壤呼吸速率及酶活性的影响

作  者：
张彭良
单  位：
成都农业科技职业学院
关键词：
模拟增温;春小麦;生长发育;土壤呼吸速率;土壤酶活性
摘  要：
采用开顶式生长室连续2 a小尺度的模拟增温,同步监测模拟增温对春小麦生长发育、根区土壤呼吸速率及酶活性的影响,以期揭示春小麦对全球气候变化的响应机制,为实现全球气候变化背景下春小麦高产优质栽培提供科学依据和理论基础。结果表明:成熟期春小麦株高、茎粗、叶面积指数、比叶重、穗粒数和千粒质量均表现为模拟增温处理>未增温处理,并且模拟增温提高了成熟期叶片叶绿素a、叶绿素b、碳水化合物、蛋白质及粗蛋白、粗脂肪、粗纤维、粗灰分、无氮浸出物含量。模拟增温增加了生长期春小麦根区土壤呼吸速率和酶活性,土壤呼吸速率和酶活性均与土壤温度呈极显著的指数关系。综上,模拟增温促进了小麦的生长发育,而且提高了根区土壤呼吸速率和酶活性。
译  名：
Effects of Simulated Enhancement of Temperature on Growth and Root Soil Respiration Rate and Enzyme Activity of Spring Wheat
作  者：
ZHANG Pengliang;Chengdu Agricultural College;
关键词：
simulated temperature enhancement;;spring wheat;;growth and development;;soil respiration rate;;soil enzyme activity
摘  要：
The small scale temperature enhancement experiment was simulated with open-top chamber( OTC) in two years,and the response of temperature enhancement on growth and root soil respiration rate and enzyme activity of spring wheat was studied,so as to reveal the spring wheat response mechanism to global climate change and provide scientific basis for the spring wheat cultivation with high yield and good quality under the background of global climate change. The results showed that at the mature stage,the contents of chlorophyll a,b,carbohydrate,protein,crude protein,crude fat,crude fiber,crude ash,nitrogen free extract,and the plant height,stem diameter,leaf area index,specific leaf weight,grains per ear and1 000-seed weight presented OTC > CK( without temperature enhancement). The simulated temperature enhancement increased the soil respiration rate and soil enzyme activities at the growth stage of spring wheat. There were significant exponential relationship between soil respiration rate and enzyme activities and soil temperature. To sum up,enhancement of temperature was beneficial to improve the growth and root soil respiration rate and enzyme activity of spring wheat.

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