The Influence of Different Management Modes on the Potential of Moso Bamboo Carbon Sink Based on Survey Data of Yuhang and Lin’an

Bamboo forest carbon sequestration has strong development potential in coping with global climate change. The management of Moso bamboo forest can exert its own strong carbon sequestration ability and promote farmers' income, which is the fundamental point of bamboo industry development and can integrate ecological, economic, and social benefits. In this study, two Moso bamboo forests with different management modes in Lin'an and Yuhang of Zhejiang Province were used as research points. Using the system dynamic thinking method, a dynamic system model was constructed to simulate the growth process of Moso bamboo and its carbon sink supply. Then comparative analysis was made of its carbon sink supply potential. It is easy for bamboo forest managers to change management measures according to their requirements and create a dynamic balance between ecology and economics when determining the optimum management mode for the bamboo forest under the supply potential of carbon sink. According to the study results, the carbon sink supply under the intensive model is the most ideal, while the carbon sink supply under the extensive peach blossom model is the least ideal

Contributions of Productivity and Relative Price Changes to Wheat Profitability Changes in China

Using the provincial panel data of wheat from 1998 to 2018, based on the total price and quantity framework proposed by O'Donnell(2010), and using Färe-Primont productivity index, this artical decomposes the change of wheat profitability into the change of input-output relative price (TT) and the change of total factor productivity (TFP), and further decomposes the change of TFP into technological progress and efficiency change based on input orientation. The results showed that the overall profitability of wheat decreased by 24.9% compared with 1998, which was attributed to the decrease of TT by 32.6% and the increase of TFP by 11.4%. Results indicate that profitability change is mainly driven by TT change, and the impact of TT change on wheat profitability was alleviated by the compensatory change of TFP. The main driving factor of wheat TFP growth is technical progress, Compared with the growth of technical progress, the technical efficiency grows slowly