不同生态恢复措施下宁南典型草原小气候变化及其与土壤水分的关系  

Changes of microclimate and relation between microclimate and soil water under different ecological restoration measures in typical steppe of South Ningxia

作　　者：韩丙芳[1,2] 刘亚兵[3] 张存[4] 陈亚伟[4] 马瑞[4] 马非[4] 

机构地区：[1]宁夏大学土木与水利工程学院,宁夏银川750021 [2]旱区现代农业水资源高效利用教育部工程研究中心,宁夏银川750021 [3]宁夏大学新华学院,宁夏银川750021 [4]宁夏大学农学院,宁夏银川750021

出　　处：《农业科学研究》2014年第4期8-13,共6页Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(31001032)

摘　　要：为了探讨不同生态恢复措施对宁南典型草原小气候的影响以及小气候与土壤水分的关系，通过野外测定，研究了水平沟、鱼鳞坑和封育3种恢复措施下地上20 cm气温、空气湿度、风速及地温的变化特征及其与地表水分的关系，发现地上20 cm处气温和0~20 cm土壤含水率为水平沟＞鱼鳞坑＞封育草地，风速则相反；地上20 cm处湿度、0~15 cm土壤温度为封育草地＞水平沟＞鱼鳞坑；土壤0~20 cm含水率与地上20 cm处的风速负相关，与空气相对湿度正相关。The research aimed to study the influence on microclimate of typical Steppe under different ecological restoration measures and relation between microclimate and soil water content in south Ningxia. Air temperature, air relative humidity and wind speed in aboveground 20cm, and soil temperature, soil surface water content under three ecological restoration measures named parallel ditches, fish-scale and ungrazed grasslands were determined in field. The results showed that air temperature in aboveground 20cm and 0~20 cm soil water content were highest in parallel ditches, higher in fish-scale pits, and lowest in ungrazed grasslands. Wind speed was opposite to air temperature in every measure. Air relative humidity in aboveground 20cm and soil temperature in the depth of 0~15cm were biggest in ungrazed grasslands, bigger in parallel ditches, and smallest in fish-scale pits. It was negative correlation between soil surface water content and wind speed in aboveground 20cm, and was positive correlation between 0~20 cm soil water content and air relative humidity in aboveground 20cm.

关 键 词：生态恢复措施 典型草原 小气候 土壤水分 

分 类 号：S154.4[农业科学—土壤学]