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南昌市LUCC多情景模擬和生境質(zhì)量時(shí)空演變與預(yù)測
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國家自然科學(xué)基金項(xiàng)目(51708098、52168010)


Multi-scenario Simulation of LUCC and Spatio-temporal Evolution and Prediction of Habitat Quality in Nanchang City
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    人類活動(dòng)和氣候影響土地利用變化,而土地利用變化是影響生境質(zhì)量變化最基本因素之一,探究不同氣候情景下生境質(zhì)量對區(qū)域土地資源可持續(xù)利用和生態(tài)保護(hù)具有重要意義。本文以南昌市為例,基于耦合SD(System dynamics)-PLUS(Patch-generating land use simulation)模型模擬預(yù)測共享社會(huì)經(jīng)濟(jì)發(fā)展路徑(Shared socioeconomic pathways, SSPs)與典型濃度路徑(Representative concentration pathways, RCPs)組合情景下南昌市2035年土地利用格局,InVEST (Integrated valuation of ecosystem services and trade-offs)模型評估2000—2020年以及3種不同氣候情景下南昌市2035年生境質(zhì)量并進(jìn)行時(shí)空變化分析,結(jié)果表明:3種情景下,2035年南昌市耕地、林地、草地面積下降,建設(shè)用地?cái)U(kuò)張迅速,水域和未利用地變化幅度較小。2000—2020年生境質(zhì)量持續(xù)下降且空間分布差異較大,優(yōu)等生境質(zhì)量分布于山地丘陵以及湖泊水域,中、差等則分布于耕作區(qū)和城鎮(zhèn)地區(qū)。3種氣候情景下,2035年南昌市生境質(zhì)量呈減速下降趨勢,主要表現(xiàn)出中等向差等生境轉(zhuǎn)換,退化程度由大到小依次為SSP585、SSP245、SSP119。研究結(jié)果可為南昌市高質(zhì)量發(fā)展和生物多樣性保護(hù)提供科學(xué)依據(jù)。

    Abstract:

    Human activities and climate affect land use change, and land use change is one of the most fundamental factors influencing habitat quality change. It is important to investigate habitat quality under different climate scenarios for sustainable use of regional land resources and ecological conservation. Taking Nanchang City as an example, and the shared socioeconomic pathways (SSPs) and representative concentration pathways (RCPs) were predicted based on coupled system dynamics (SD)-patch-generating land use simulation (PLUS) model simulations. The integrated valuation of ecosystem services and trade-offs (InVEST) model evaluated the land use pattern of Nanchang City in 2035 under combination of SSPs and RCPs. The results showed that under the three scenarios, the area of arable land, forest land and grassland in Nanchang City was decreased in 2035, the land for construction was expanded rapidly, and the change in water and unused land was small. Under the three climate scenarios, the habitat quality of Nanchang City in 2035 showed a decelerating trend of decline, mainly showing a shift from medium to low habitats, and the degradation degree from large to small was SSP585, SSP245, and SSP119. The research results can provide scientific reference for high-quality development and biodiversity conservation in Nanchang City, and it can also provide scientific reference for high-quality development and biodiversity conservation in Nanchang City.

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陳竹安,劉子強(qiáng),張立亭,危小建,洪志強(qiáng).南昌市LUCC多情景模擬和生境質(zhì)量時(shí)空演變與預(yù)測[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2023,54(5):170-180. CHEN Zhu’an, LIU Ziqiang, ZHANG Liting, WEI Xiaojian, HONG Zhiqiang. Multi-scenario Simulation of LUCC and Spatio-temporal Evolution and Prediction of Habitat Quality in Nanchang City[J]. Transactions of the Chinese Society for Agricultural Machinery,2023,54(5):170-180.

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  • 收稿日期:2022-08-16
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  • 在線發(fā)布日期: 2023-05-10
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