



摘要 為實現土地低碳利用,探究土地利用低碳優化策略,本研究采用土地利用碳排放量測算模型、CA-Markov模型和MOP-Plus模型對遠期2030年哈大綏地區不同情境下的土地利用模式進行模擬比較分析,并給出優化建議。結果表明,相較于慣性情景,低碳發展情景的“碳源地類”面積更小,“碳匯地類”面積更大,2種情景下建設用地預測增長面積最大,草地縮減面積最大;在2種情景模擬下,哈大綏地區將在2030年前實現碳達峰,低碳發展情景較慣性情景碳排放量更少,在2030年碳排放量減少了141.67萬t;在未來土地利用過程中要適度控制耕地的過度擴張,增加林地面積,保護濕地,控制城鎮擴張。在低碳發展情景的優化下,可以減少由土地利用所引起的碳排放,最終實現碳減排。
關鍵詞 土地利用;低碳優化;CA-Markov;MOP-Plus
中圖分類號 F301.24 文獻標識碼 A
文章編號 1007-7731(2023)21-0123-05
Simulation study on low carbon optimization of land use in the Hadasui area
FENG Xiaogang" " ZHAO Guangying" " BAI Ruxue
(School of Geographic Sciences, Harbin Normal University, Harbin 150025, China)
Abstract To achieve low-carbon land use and explore low-carbon optimization strategies for land use, this study uses the land use carbon emission calculation model, the CA-Markov model, and the MOP-Plus model to simulate and compare the land use patterns in the Hadasui region under different scenarios in 2030, and finally provides optimization suggestions. The results show that compared with the inertia scenario, the low-carbon development scenario had a smaller area of “carbon source land” and a larger area of “carbon sink land”. In both scenarios, the growth area of construction land is the largest, and the reduction area of grassland is the largest. In both scenarios, the Hadasui region will achieve carbon peaking before 2030, with lower carbon emissions in the low-carbon development scenario compared to the inertia scenario. In 2030, carbon emissions decreased by 1.416 7 million tons. In the future land use process, it is necessary to control the excessive expansion of arable land, increase forest land area, protect wetlands, and control urban expansion. Under the optimization of low-carbon development scenarios, carbon emissions caused by land use can be reduced, ultimately achieving carbon reduction.
Keywords land use; low-carbon optimization; CA-Markov; MOP-Plus
隨著溫室氣體的大量排放,全球變暖已經成為人類面臨的較嚴重的生態問題之一。作為陸地生態系統碳源/碳匯的自然空間載體及人類生產生活的社會經濟載體,土地利用規模、結構、布局、強度的改變及土地所承載的社會經濟活動直接或間接造成了碳排放/碳吸收的變化。土地利用是僅次于化石能源消耗的第二大碳源,占CO2排放總量的近1/3,而通過對土地利用結構的合理優化,提高土地資源利用率,可以減少碳排放量,促進碳達峰、碳中和目標的實現[1]。
在土地利用低碳優化模擬研究中,大多利用多目標規劃模型、Markov模型及線性規劃等方法對土地利用結構進行優化模擬,而近些年隨著土地利用空間模擬模型不斷優化,如元胞自動機模型、CLUE-S模型、Flus模型、Plus模型等層出不窮,土地利用空間布局優化模擬研究越來越成熟。……