藏北高寒草甸土壤线虫群落对围封及自由放牧的响应OA北大核心CSCDCSTPCD
Effects of Free Grazing or Enclosure on Soil Nematodes in Alpine Meadows in North Tibet, China
为了解放牧干扰对藏北高寒草甸的影响,以及连续围封措施对草地的恢复作用,2013-2015年连续3年对那曲县围封、自由放牧天然高寒草甸土壤线虫群落进行取样调查及数据分析.结果表明:围封、放牧样地的线虫个体数量在年际间的变化均较明显,植食性线虫是整个线虫群落个体数量变化的主要贡献者;围封样地的线虫个体密度、多样性指数H'、丰富度指数SR,以及优势度指数λ的年际变化幅度均大于放牧样地;食细菌性线虫个体数量及线虫通路比值(NCR)表明放牧样地的有机质转化…查看全部>>
[Objective] The North Tibet Prairie lies in the inland of the Qinghai-Tibet Plateau and is one of the most important grassland ecosystems in China.Recent years have witnessed an apparent rising trend of the expansion of severely degraded grassland in area.According to relevant data available,in 2013,the area of slightly degraded grassland expanded to cover 62.0％ of the total of the prairie.[Method] During the initial period of this research project,an invest…查看全部>>
薛会英;罗大庆;王鸿源;屈兴乐
西藏农牧学院资源与环境学院,西藏林芝860000西藏农牧学院高原生态研究所,西藏林芝860000西藏农牧学院高原生态研究所,西藏林芝860000西藏农牧学院高原生态研究所,西藏林芝860000
农业科技
土壤线虫生物多样性高寒草甸西藏
NematodeBiodiversityAlpine grassland ecosystemTibet
《土壤学报》 2017 (2)
西藏北部高寒草甸土壤线虫群落对气候变化的响应
480-492,13
国家自然科学基金项目(31260144,31660155)和西藏特色农牧资源研发协同创新中心高原生态项目资助 Supported by the National Natural Science Foundation of China (Nos.31260144,31660155) and the Plateau Ecological Project of Collaborative Innovation Center of Research and Development on Tibetan Characteristic Agricultural and Animal Husbandry Resources
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