| 要旨トップ | 目次 | | 日本生態学会第59回全国大会 (2012年3月,大津) 講演要旨 ESJ59/EAFES5 Abstract |
一般講演(ポスター発表) P3-243A (Poster presentation)
Rangelands of the Tibetan plateau, although sparsely populated and contributing little to China’s overall economy, play an important environmental role throughout Asia. They contain high biodiversity and ecological services values and can also potentially provide China with a source of cultural and geographic variety in the future. For the 10 years monitoring, overgrazing linding grassland degradation could change alpine meadow from a carbon sink to soruese. Regenerate degraded rangeland could increase the ecosystem services by different treatments which depend on the degree of rangeland degradation. Integrating livestock and crop production couple system was introduce to Tibetan plateau base on the project “green for grain” ,which means shifting from the traditional systems focused exclusively on livestock or crop to a new approach which sustainably combines both. The ratio of feedstuff consumption per unit of animal product can be reduced by feeding better quality diets to sheep and yaks. These practices, which are cost effective and available in eastern part of plateau, can increase efficiency milk and meat production, and, together with reductions in the number of animals, help mitigate CO2 emissions from ruminant systems and decrease grazing pressures of nature pasture.