Methane emissions from rice fields at Tuzu, Sichuan Prov., China

The data is the result of a 7-year study of methane emissions from rice fields in the Sichuan Province of China. In this region, there is one crop of rice per year, the fields are continuously flooded from transplanting to harvest, and there is heavy use of organic fertilizers, particularly pig manure. The fields were studied under prevailing agricultural practices of the local farmers. The results represent emissions under standard agricultural practices and the year to year variability of climate, fertilizers, available irrigation water, and cultivars. The sample site was located near the village of Tuzu (29.5 degrees N latitude, 106.7 degrees E longitude), about 20 km east of Leshan City, and 100 km south of Chengdu. Data are documented in: Khalil, M.A.K., R.A. Rasmussen, M.J. Shearer, R.W. Dalluge, L.X. Ren, and C.L. Duan (1998), Measurements of methane emissions from rice fields in China, J. Geophys. Res. 103(D19) 25,181-25,210.本数据集源自一项为期7年的中国四川省稻田甲烷排放研究。该区域水稻一年一熟，稻田自插秧至收获全程持续淹水，且有机肥施用量较高，尤以猪粪为主要有机肥来源。本研究严格遵循当地农户的常规农业生产实践开展观测。研究结果反映了标准农业生产模式下的甲烷排放水平，以及气候、肥料、灌溉水源与水稻品种的年际变异性。 采样点位于乐山市以东约20公里、成都市以南约100公里的土主（Tuzu）村附近，地理坐标为北纬29.5度、东经106.7度。 相关研究数据已发表于以下文献： Khalil, M.A.K., R.A. Rasmussen, M.J. Shearer, R.W. Dalluge, L.X. Ren, and C.L. Duan (1998), Measurements of methane emissions from rice fields in China, J. Geophys. Res. 103(D19) 25,181-25,210.