Carbon sinks and carbon emissions balance of land use transition in Xinjiang, China: differences and compensation.
Carbon sinks and carbon emissions balance of land use transition in Xinjiang, China: differences and compensation.
复制标题
中国新疆土地利用转型碳汇与碳排放平衡：差异与补偿
DOI：
10.1038/s41598-022-27095-w
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发表时间：
2022-12-27
影响因子：
4.6
通讯作者：
Xie, Ling
中科院分区：
文献类型：
--
作者：
Luo, Kui;Wang, Hongwei;Ma, Chen;Wu, Changrui;Zheng, Xudong;Xie, Ling
随着人类活动的不断增强，生态脆弱的干旱区区域发展与生态保护的矛盾日益突出。正确认识土地利用方式转变引起的生态供需问题，科学制定生态补偿方案，对区域可持续发展具有重要意义。本研究以中国新疆为研究区域。利用GIS空间分析和修正的比较生态辐射强迫等方法，研究了新疆土地利用转型特征及碳供需变化。最后，基于生态辐射理论，对生态补偿方案进行了研究。研究表明：（1）在研究年表中，大部分地区只发生了一次土地利用变化。土地利用正逐步向生态保护方向发展。2000年后，草地恢复良好，14,298 km 2的其他生态用地转化为草地。(II)新疆生态系统的碳汇变化呈现出先减少后增加的趋势，2010年以后开始出现生态赤字面积。草地和耕地面积的增长对提高干旱区的碳汇能力至关重要。(III)新疆生态补偿金额为31.47 * 108元，生态补偿区获得金额的比例与供需区距离、碳汇量、区域面积等因素有关。为实现干旱区土地可持续利用生态系统的健康发展提供参考。
With the continuous enhancement of human activities, the contradiction between regional development and ecological protection is prominent in the ecologically fragile arid areas. It is of great significance for regional sustainable development to understand the ecological supply and demand problems caused by transformation of land using and formulate ecological compensation scheme scientifically. This study takes Xinjiang in China as the research area. It explores the land use transition characteristics and the changes in carbon supply and demand of Xinjiang using methods such as GIS spatial analysis and modified comparative ecological radiation forcing. Finally, the ecological compensation scheme is studied based on the theory of ecological radiation. The research shows that (I) in the study chronology, most of the areas produced only one change in land use. Land use is gradually developing towards the direction of ecological protection. After 2000, grassland recovered well, and 14,298 km2of other ecological land was transformed into grassland. (II) The change in the carbon sink of the Xinjiang ecosystem first decreased and then increased, and the ecological deficit area started to appear after 2010. The growth of grassland and cropland areas is essential to enhance the carbon sink capacity of arid zones. (III) The amount of ecological compensation in Xinjiang is 31.47 * 108yuan, and the proportion of the amount received by ecological compensation areas is related to the distance between the supply and demand areas, the amount of carbon sequestration, and the area of the region. This study provides a reference for achieving the healthy development of sustainable land use ecosystems in arid zones.
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