草原与草坪2025，Vol.45Issue(1)：8-14,7.DOI:10.13817/j.cnki.cyycp.2025.01.002
藏北高原土壤和植物硫含量及其与牦牛硫营养需求的关系
Relationships between sulphur status of soils and plants and its requirements of ruminants in the northern Tibetan Plateau
摘要
Abstract
[Objective]This study aims to assess whether the sulfur content of plants and soils of the northern Ti-betan Plateau meets the sulfur nutrition requirements for growth and production of grazing livestock.[Method]The sulphur content in the main plants,plant communities,and soils of 4 alpine steppes were investigated.The sulfur nutri-ent status of these alpine steppes was evaluated in relation to the sulfur requirements of the primary livestock specie,[Result]The mean organic sulphur content ranged from 0.01%to 0.20%in the 0～10cm soils,A strong positive correlation was found between the ratio of nitrogen-to-sulphur(N∶S)in soils and in plants,The sulfur content of 70%of the plants was lower than 0.16%,and more than 90%of the plants had an N∶S ratio greater than 14.[Con-clusion]More than 70%～90%of the plants were sulfur-deficient for grazing livestock,suggesting that sulphur defi-ciency is widespread in the northern Tibetan Plateau.This deficiency limits the production performance of livestock.Future evaluations of sulphur nutritional requirements for grazing animals are recommended.关键词
藏北高原高寒草地/土壤/植物/硫含量/放牧家畜/硫营养需求Key words
alpine grassland in northern Tibetan Plateau/soil/plant/sulphur content/grazing livestock/sulfur nu-trition requirements分类
农业科技引用本文复制引用
孙建平,阿旺,吕汪汪,刘云霞,贾跃凤,斯确多吉,汪诗平..藏北高原土壤和植物硫含量及其与牦牛硫营养需求的关系[J].草原与草坪,2025,45(1):8-14,7.基金项目
西藏自治区科技厅重点研发计划(XZ202201ZY0012N) （XZ202201ZY0012N）
西藏自治区那曲市区域科技协同创新专项"幼龄牦牛产绒性能提升技术研究与示范". （）
