摘要
在归纳近二十几年学者们在中国草地土壤呼吸所使用的测量方法的的同时,对我国当前不同类型草地的土壤呼吸研究结果进行总结。目前对土壤呼吸的研究主要集中在东北平原、内蒙古高原和青藏高原地区,最常使用的测量方法是静态室测量法。在东北平原地区,土壤呼吸速率与温度呈指数关系,与水分呈乘幂和一次线性关系。在内蒙古草原地区,土壤呼吸速率与温度呈指数、线性和二次回归关系,与水分呈指数-乘幂、对数和线性关系。在青藏高寒区,土壤呼吸速率与温度呈指数关系。在人为干扰形式中,放牧、刈割会降低土壤的呼吸速率,开垦和施肥则会增加土壤呼吸速率。
The measurement methods used for soil respiration by scholars in recent twenty years were reviewed, research results of soil respira- tion in different types grass land were summarized. It was found that studies about soil respiration mainly concentrate on Northeast Plain, Inner Mongolia Plateau and Qinghai Tibet Plateau area, the most commonly used measurement method is static chamber method. In Northeast Plain, soil respiration rate showed index relationship with temperature, indicated power and a linear relationship with moisture. In grassland area of In- ner Mongolia, soil respiration rate showed index, linear and two regression relationship with temperature, indicated index-power, logarithm and linear relationship with moisture. In Qinghai Tibet Plateau Region, soil respiration rate showed index relationship with temperature. In human in- terference form, grazing, mowing could reduce soil respiration rate, reclamation and fertilization could increase soil respiration rate.
出处
《安徽农业科学》
CAS
2015年第13期74-76,82,共4页
Journal of Anhui Agricultural Sciences
关键词
草地
土壤呼吸
测量方法
影响因素
Grassland
Soil respiration
Measurement method
Influencing factors
