贺兰山岩羊可食植物营养成分沿海拔梯度变化及季节动态  

Altitudinal and seasonal variations of nutrients in edible plants of blue sheep(Pseudois nayaur)in the Helan Mountains

作　　者：崔璐瑶 邱开阳[1,2,3,4] 李静尧 谢应忠 赵朋波[1,2,3,4] 刘王锁 黄业芸 杨壹 鲍平安[1,2,3,4] 王思瑶 CUI Luyao;QIU Kaiyang;LI Jingyao;XIE Yingzhong;ZHAO Pengbo;LIU Wangsuo;HUANG Yeyun;YANG Yi;BAO Pingan;WANG Siyao(School of Agriculture,Ningxia University,Yinchuan 750021,China;Ningxia Grassland and Animal Husbandry Engineering Technology Research Center,Yinchuan 750021,China;Key Laboratory for Model Innovation in Forage Production Efficiency,Ministry of Agriculture and Rural Affairs,P.R.China,Ningxia University,Yinchuan 750021,China;Key Laboratory of Land Degradation and Ecosystem Restoration in Northwest China,Ningxia University,Yinchuan 750021,China;Ningxia Helan Mountain National Nature Reserve Administration,Yinchuan 750021,China;Ningxia Technical College of Wine and Desertification Prevention,Yinchuan 750021,China)

机构地区：[1]宁夏大学农学院,银川750021 [2]宁夏草牧业工程技术研究中心,银川750021 [3]农业农村部饲草高效生产模式创新重点实验室,银川750021 [4]宁夏大学西北土地退化与生态恢复省部共建国家重点实验室培育基地,银川750021 [5]宁夏贺兰山国家级自然保护区管理局,银川750021 [6]宁夏葡萄酒与防沙治沙职业技术学院,银川750021

出　　处：《生态学杂志》2023年第5期1167-1174,共8页Chinese Journal of Ecology

基　　金：宁夏重点研发计划重点项目(2020BEG02001);国家自然科学基金项目(42001095);宁夏自然科学基金优秀青年项目(2022AAC05007)资助。

摘　　要：了解贺兰山岩羊可食植物营养成分变化是研究岩羊采食分布范围的重要环节,对阐明野生岩羊与自然环境关系具有重要意义。以不同季节(6月、8月和11月)、不同海拔(1100-2600 m)的贺兰山岩羊可食植物为对象,分析其营养成分变化的时空格局。结果表明:8月植物营养价值最佳,除粗灰分,各个营养成分在不同季节之间差异均显著(P<0.05);6月不同海拔之间除粗脂肪外贺兰山岩羊可食植物营养成分均具有显著性差异(P<0.05),8月各个营养成分之间在不同海拔差异均显著(P<0.05),11月除粗蛋白外其余养分含量在不同海拔均具有显著性差异(P<0.05);海拔和季节对岩羊可食植物营养成分变化具有交互作用(P<0.05)。因此,针对不同季节、不同海拔下植物的营养价值不同,建议分时间、分海拔区域对岩羊进行管护,促使岩羊种群健康可持续性发展。Changes in nutrients in edible plants of blue sheep(Pseudois nayaur)in the Helan Mountains are an important link to study of the distribution of their browsing areas,which has great significance for clarifying the relationship between blue sheep and natural environment.The spatial and temporal variations in edible plant nutrients of blue sheep along an altitudinal gradient(1100-2600 m above sea level)in the Helan Mountains across different seasons(June,August,and November)were analyzed.Results showed that plant nutritional value was the highest in August,and that each plant nutritional ingredient except for crude ash was significantly different among different seasons(P<0.05).In June,except ether extract,nutrient contents of edible plants significantly varied across different altitudes(P<0.05).In August,there were significant differences in the contents of all nutrients among altitudes(P<0.05).In November,the contents of all nutrients except crude protein were significantly different among different altitudes(P<0.05).There was an interactive effect of altitude and season on changes in the nutritional ingredient of edible plants(P<0.05).Considering altitudinal and temporal variations of plant nutritional value,it is suggested that the management and conservation strategy for blue sheep should be dependent on altitudes and seasons to promote the healthy and sustainable development of blue sheep population.

关 键 词：贺兰山 岩羊 植物营养 海拔梯度 季节动态 

分 类 号：Q958[生物学—动物学]