欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
通过对青藏高原高寒草甸（甘肃省玛曲县）四个放牧梯度下土壤微生物特征的比较，分析了该类草甸土壤微生物特征对不同放牧强度的响应．结果显示：与其他处理相比，中牧处理下的土壤有较高的微生物量及微生物熵，这表明在研究区域，适度的放牧可以增加土壤有效性碳、氮库；微生物代谢熵（qCO2）在禁牧、轻牧和中牧处理间无显著差异，而重牧处理下的qCO2明显高于其他处理的，说明高频度的放牧增强了土壤微生物的代谢活性；不同放牧处理下的w（Cmic）／w（Nmic）不存在显著差异，说明放牧强度对微生物群落结构不存在显著影响，在研究区域内细菌在微生物群落中占优势．
英文摘要：
A comparative study on the soil microbial characteristics with different grazing ducted in an alpine meadow on the Tibetan Plateau （in Maqu county, Gansu province）. The intensities was conresults showed that moderate grazing markedly stimulated the accumulation and immobilization of C and N in microbes compared with the other treatments, thus demonstrating that proper grazing promoted the enrichment of the available soil C and N pool in the study region. No significant difference was found between non-grazing, light grazing and moderate grazing for qC02, but the same variable in heavy-grazing was obviously higher than that under the other treatments, which suggested that the enhancement of grazing intensity increased the metabolic activity of the microbes. There was no obvious difference between the that grazing intensity had no marked effect on microbial dominant in the microbial community in the study region. four treatments for W（Cmic）/w（Nmic）, which implied community structure. Meanwhile, the bacteria was
同期刊论文项目
同项目期刊论文
Mesoporous Carbon as a Metal-Free Catalyst for the Reduction of Nitroaromatics with Hydrazine Hydrat
Effects of warming and grazing on soil N availability, species composition, and ANPP in an alpine me
Response of soil properties to yak grazing intensity in a Kobresia parva-meadow on the Qinghai-Tibet
Field (CO2)-C-13 pulse labeling reveals differential partitioning patterns of photoassimilated carbo
Seasonal and interannual variations of ecosystem photosynthetic features in an alpine dwarf shrublan
Above- and Belowground Response along Degradation Gradient in an Alpine Grassland of the Qinghai-Tib
Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition i
Field evidence for earlier leaf-out dates in alpine grassland on the eastern Tibetan Plateau from 19
Trade-offs between flowering time, plant height, and seed size within and across 11 communities of a
Fertilization decreases species diversity but increases functional diversity: A three-year experimen
The effect of environmental and phylogenetic drivers on community assembly in an alpine meadow commu
Impacts of altitude and position on the rates of soil nitrogen mineralization and nitrification in a
Relationship between Reproductive Allocation and Relative Abundance among 32 Species of a Tibetan Al
The maintenance of offspring diversity in response to land use: sexual and asexual recruitment in an
Primary floral allocation per flower in 12 Pedicularis (Orobanchaceae) species: significant effect o
Diverse communities of arbuscular mycorrhizal fungi inhabit sites with very high altitude in Tibet P
Effects of long-term fertilization on AM fungal community structure and Glomalin-related soil protei
Seasonal dynamics of the plant community and soil seed bank along a successional gradient in a subal
Plasticity of reproductive traits responding to variation in light availability at the rosette stage
Geographic variation in seed mass within and among nine species of Pedicularis (Orobanchaceae): effe
GEOGRAPHIC VARIATION IN PRIMARY SEX ALLOCATION PER FLOWER WITHIN AND AMONG 12 SPECIES OF PEDICULARIS
Grazing depresses soil carbon storage through changing plant biomass and composition in a Tibetan al
Changes in soil biochemical properties associated with Ligularia virgaurea spreading in grazed alpin
Effects of disturbance intensity on seasonal dynamics of alpine meadow soil seed banks on the Tibeta
EFFECT OF STORAGE CONDITIONS ON GERMINATION OF SEEDS OF 489 SPECIES FROM HIGH ELEVATION GRASSLANDS O
EFFECT OF LAND-USE ON SOIL NUTRIENTS AND MICROBIAL BIOMASS OF AN ALPINE REGION ON THE NORTHEASTERN T
期刊信息
位置：