草甸草原地上现存量变化及其与温度和降雨量的关系  

The Relationship between Variation of Aboveground Biomass and Temperature and Precipitation in Meadow Steppe

作　　者：郭淑晶 吕世杰[2] 运向军[3] 孙长鹏 刘红梅[5] 杨霞 任佳[2] GUO Shu-jing LV Shi-jie YUN Xiang-jun SUN Chang-peng LIU Hong-mei YANG Xia REN Jia(Bureau of Meteorology of Chenbaerhu Banner in Inner Mongolia, Hailar 021500,China College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China Grassland Research Institute, CAAS , Hohhot 010010, China Bureau of Meteorology of Hulunbeier , Hailar 021000,China Inner Mongolia Institute of Forestry Science, Hohhot 010010, China Inner Mongolia Institute of Land Survey and Planning, Hohhot 010020, China)

机构地区：[1]内蒙古自治区呼伦贝尔市陈巴尔虎旗气象局,内蒙古021500 [2]内蒙古农业大学理学院,内蒙古呼和浩特010018 [3]中国农业科学院草原研究所,内蒙古呼和浩特010010 [4]呼伦贝尔市气象局,内蒙古海拉尔021000 [5]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [6]内蒙古土地调查规划院,内蒙古呼和浩特010020

出　　处：《中国草地学报》2017年第2期33-40,共8页Chinese Journal of Grassland

基　　金：内蒙古自治区自然科学博士基金项目(2014BS0329);国家重点研发计划政府间国际科技创新合作重点专项(2016YFE0116400);中央级公益性科研院所基本科研业务费专项资金项目(中国农业科学院草原研究所161332015022;1610332016009);中国农业科学院创新工程草原非生物灾害防灾减灾团队项目(CAASASTIP-IGR2015-04)

摘　　要：以内蒙古呼伦贝尔市陈巴尔虎旗西北部东乌珠尔苏木查干诺尔嘎查的草甸草原为研究对象,选用2004~2013年生长季(5~8月份)的气象(降雨量与温度)和草地地上现存量(围封区与自由放牧区)数据,结合变异分析、比较分析和相关分析等方法进行研究,结果表明:草地地上现存量受水热变化影响明显,受放牧利用强度变化的影响也比较明显。水热与草地地上现存量关系密切,且降水对草地地上现存量的影响大于温度;有效降水对草地地上现存量的影响具有放大作用和滞后作用等。The research object of the study was meadow steppe in Chagannuoer village in Wuzhuer country in the northwest of Chenbaerhu Banner.The date of meteorological（precipitation and temperature）and aboveground biomass（enclosed area and free grazing area）in growing season（May^August）for ten years（2004~2013）were selected.The results showed that the standing crop of grassland was not only affected by precipitation and temperature,but also by the intensity of grazing.The aboveground biomass was closely related to precipitation and temperature.The effect of precipitation on the aboveground standing crop was stronger than temperature.The effect of effective precipitation on the aboveground standing crop of the grassland was enlarged and delayed.

关 键 词：草甸草原 温度 降雨量 围封区 自由放牧区 

分 类 号：S812.29[农业科学—草业科学]