春季休牧对三江源区典型高寒草甸植物经济类群的影响  

Effect of Rest Grazing in Spring on Different Economic Groups of Typical Alpine Meadow Plants in Three-river Source Region

作　　者：谢乐乐 马玉寿[1] 王晓丽[1] 周选博 王彦龙[1] XIE Le-le(Academy of Animal Science and Veterinary Medicine of Qinghai University,Xining 810016)

机构地区：[1]青海大学畜牧兽医科学院青海省高寒草地适应性管理重点实验室三江源区高寒草地生态省部共建教育部重点实验室,西宁810016

出　　处：《青海畜牧兽医杂志》2021年第4期1-5,19,共6页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：青海省重点研发与转化计划-科技成果转化项目(2018-SF-137);青海省自然科学基金青年项目(2018-ZJ-939Q)。

摘　　要：为深入了解春季休牧对典型高寒草甸植物经济类群的影响,以果洛州退化高寒草甸为研究对象,进行连续三年的春季休牧,于2019年牧草生长旺季(8月中旬),采用样方法调查休牧区与对照区植物不同经济类群的特征,研究春季休牧对高寒草甸的影响。结果表明,随着春季休牧年限的增加,植物群落的高度、盖度和生物量均在增加,其中莎草科功能群生物量增加较快,其次为禾本科功能群,阔叶型可食草功能群增加缓慢,而杂类草功能群却逐渐减少。因此,春季休牧对于三江源区退化高寒草甸植被恢复具有重要意义。To understand the effect of rest grazing in spring on typical alpine meadow plant economic groups,the degradation alpine meadow was as the research object for three consecutive years of spring rest grazing.The plants'characteristic of different economic groups was surveyed in spring rest grazing area and control area in 2019.The results showed that the height,coverage and biomass of the plant community increased with the increasing of the spring rest grazing years,among which the biomass of the functional group of Cyperaceae increased rapidly,followed by the functional group of Grasses,the functional group of broadleaved herbivorous species increased slowly,and the functional group of wild grasses decreased gradually.Therefore,spring rest grazing is of great significance to the vegetation restoration of degraded alpine meadow in the Three-river source region.

关 键 词：三江源区 高寒草甸 春季休牧 退化草地恢复 经济类群 

分 类 号：S543[农业科学—作物学]