Loss–gain estimation of marshland carbon sequestration and paddy productivity in Fuyuan county, Heilongjiang province, China
第一作者: |
刘晓辉 |
英文第一作者: |
Liu Xiaohui |
联系作者: |
吕宪国 |
英文联系作者: |
Lu Xianguo |
发表年度: |
2011 |
卷: |
40 |
摘要: |
Fuyuan county, located to the north-east of the Sanjiang Plain but excluding the Muling-Xingkai Plain to the south of the Wanda Mountain, north-eastern Heilongjiang province (China), has seen rapid change to the marsh and its agriculture. In 1982, 16.9% of the county was marshland and only 0.7% was dedicated to paddy fields. By 2005, 12.9% was marshland and 7.7% was paddy field. During this period, the agricultural population in the county rose from 28.5×103 to 79.4×103, and the numbers of households from 3.7×103 to 26.1×103. At the same time, the price of paddy and the productivity of paddies also increased. All these pressures combined to drive substantial changes to the marsh and paddy field. This paper considers the loss of the marsh ecosystem in terms of its total value and value per unit area, and assesses the overall benefits to people from the changes in paddy production. The authors also identify the total lost value of carbon formerly sequestered in the marsh compared with the net agricultural gains. |
刊物名称: |
Outlook on Agriculture |
参与作者: |
吕宪国;姜明 |