Study on Carbon Effects and Spatial Differences Based on Changes in China's Agricultural Land Use
研究分析了1993-2008年中国农业土地利用变化的碳排放和碳汇效应，发现碳排放强度年均增长4.08%，而森林碳汇增长3.19%，并揭示了生态恢复和耕地占用导致的区域碳效应差异。
The agricultural land-use change is an important carbon source,but also the most important carbon sinks.Functional analysis of carbon estimates from 1993 to 2008 shows that China's agricultural use of carbon emissions,increased by an average intensity of 4.08%,2.38%;chemical fertilizers,pesticides,diesel oil,irrigation,tillage and other carbon emissions generated by average annual increase,respectively,3.45%,4.65%,7.20%,4.77%,1.22%,0.38%.2000-2008 forest carbon sinks grew 3.19%,while the grass is showing a weak carbon sink decreasing trend.Agricultural land use change in the way of the carbon effects of view of China from 2001 to 2008,due to ecological restoration produced an average annual decrease 45.16% carbon,due to the occupation of the average annual increase of carbon emissions caused by 2.23%.Agricultural land use change effects of regional differences in carbon,ecological restoration is the largest carbon sink effect of Hebei,Heilongjiang is the smallest;farmland for the construction of carbon emissions leading to the most significant effect of Jiangsu,the smallest for Tibet.