内蒙古天然草原牧草营养成分空间分布  

Spatial distribution of nutrients in forage grassland in Inner Mongolia

作　　者：闫志辉 贺俊杰 闫冬 蔡治忠 李非 何子龙 郭晓旭 萨日娜 YAN Zhihui;HE Junjie;YAN Dong;CAI Zhizhong;LI Fei;HE Zilong;Guo Xiaoxu;Sarina(Grassland Station of Xilingol League,Xilinhot 026000;Xilinhot National Climatological Observatory,Xilinhot 026000;Abaga Banner Meteorological Bureau,Abaga Banner 011400;Grassland Workstation,Sunitzuo Banner 011300,China)

机构地区：[1]锡林郭勒盟草原工作站,锡林浩特026000 [2]锡林郭勒盟生态与农业气象中心,锡林浩特026000 [3]锡林郭勒盟第二中学,锡林浩特026000 [4]阿巴嘎旗气象局,阿巴嘎旗011400 [5]锡林郭勒盟苏尼特左旗草原工作站,苏尼特左旗011300

出　　处：《草原与草业》2024年第3期24-30,共7页Grassland and Prataculture

摘　　要：利用主成分分析和变异系数统计方法,对2011—2017年内蒙古11个盟市、50个旗县市和5类草原类型天然草地牧草养分资料分析和评价。结果表明,内蒙古天然牧草营养成分粗蛋白含量12.01%,粗脂肪含量3.16%,粗纤维含量28.52%,无氮浸出物含量44.94%,磷含量0.45%,钙含量0.58%。各盟、市天然牧草粗脂肪含量乌海市最高,阿拉善盟最低;粗蛋白含量乌海市最高,巴彦淖尔市最低;钙含量阿拉善盟最高,包头市最低;磷含量呼伦贝尔市最高,阿拉善盟最低;粗纤维含量呼伦贝尔市最高,乌海市最低;无氮浸出物含量呼伦贝尔市最高,阿拉善盟最低。旗县、市天然牧草粗脂肪含量阿巴嘎旗最高,乌拉盖最低;粗蛋白含量鄂温克旗最高,陈巴尔虎旗最低;钙含量锡林浩特市最高,敖汉旗最低;磷含量新巴尔虎左旗最高,敖汉旗最低;粗纤维含量额尔古纳市最高,乌海市最低;无氮浸出物鄂温克旗最高,霍林郭勒市最低。5类草原类型牧草营养成分从东到西呈现粗脂肪含量、粗蛋白含量、磷含量、粗纤维含量、无氮浸出物含量和逐渐降低,钙含量升高的趋势。内蒙古天然牧草综合评价,综合营养成分由东向西呈波动式下降趋势。其中呼伦贝尔市的新巴尔虎左旗牧草综合营养成分最高,通辽市的霍林郭勒市最低,其余地区介于两者之间。为合理利用草原生态资源和畜牧业生产服务提供科学依据。Using principal component analysis(PCA)and coefficient of variation statistical method,the nutrient data of natural grassland in 11 leagues/cities,50 banners/counties and 5 types of grassland in Inner Mongolia from 2011 to 2017 were analyzed and evaluated.The results showed that the nutrient content of natural forage in Inner Mongolia was 12.01% crude protein,3.16% ether extract,28.52% crude fiber,44.94%nitrogen free extract,0.45% phosphorus and 0.58% calcium.The ether extract content of natural forage was the highest in Wuhai City and the lowest in Alxa League.The crude protein content was the highest in Wuhai City and the lowest in Bayannur City.Calcium content was the highest in Alxa League and the lowest in Baotou City.Phosphorus content was the highest in Hulunbuir City and the lowest in Alxa League.The crude fiber content was the highest in Hulunbuir city and the lowest in Wuhai City.The content of nitrogen-free extract was the highest in Hulunbuir city and the lowest in Alxa League.The ether extract content of natural forage was the highest in Abaga Banner and the lowest in Wulagai.The crude protein content was the highest in Ewenki Banner and the lowest in Chenbarhu Banner.Calcium content was the highest in Xilinhot and the lowest in Aohan Banner.The phosphorus content was the highest in Xinbalhu Left Banner and the lowest in Aohan Banner.The crude fiber content was the highest in Erguna city and the lowest in Wuhai City.The highest nitrogen free extract was found in Ewenki Banner and the lowest was found in Huolingole City.The comprehensive evaluation of natural forage in Inner Mongolia showed that the comprehensive nutrient composition showed a decreasing trend from east to west.The comprehensive nutrient content of herbage of Xinbalhu Left Banner in Hulunbuir City was the highest,that of Huolingole City in Tongliao City was the lowest,and the rest of the region was between the two.It provides scientific basis for rational utilization of grassland ecological resources and animal husbandry production ser

关 键 词：内蒙古 天然草原 牧草 营养成分 空间分布 

分 类 号：S812[农业科学—草业科学]