閩江河口濕地自然保護(hù)區(qū)及其周邊區(qū)域景觀自然性評(píng)價(jià)
發(fā)布時(shí)間:2018-05-16 18:33
本文選題:濕地 + 自然保護(hù)區(qū) ; 參考:《生態(tài)學(xué)報(bào)》2017年20期
【摘要】:閩江河口濕地自然保護(hù)區(qū)是福建省沿海濕地自然保護(hù)區(qū)網(wǎng)絡(luò)中的重要組成部分,通過解譯2003年和2013年兩個(gè)時(shí)相的遙感影像,利用RS和GIS空間分析技術(shù)計(jì)算自然景觀特征、生態(tài)學(xué)干擾和景觀破碎化程度3項(xiàng)指標(biāo),并在此基礎(chǔ)上構(gòu)建2個(gè)層次的景觀自然性評(píng)價(jià)指標(biāo)體系。同時(shí),運(yùn)用層次分析法計(jì)算各個(gè)指標(biāo)層的權(quán)重,定量分析了2003—2013年間研究區(qū)域的景觀自然性的變化,并進(jìn)一步探討了不同距離的環(huán)狀帶對(duì)濕地保護(hù)區(qū)及周邊區(qū)域景觀自然性的影響,對(duì)閩江河口濕地保護(hù)區(qū)及其周邊區(qū)域景觀自然性變化進(jìn)行分析。結(jié)果顯示:2003—2013年間,閩江河口濕地自然保護(hù)區(qū)內(nèi)景觀自然性降低,降幅為9.17%,景觀自然性有隨著距離自然保護(hù)區(qū)距離增加而減小的趨勢。景觀自然性變化的自然驅(qū)動(dòng)力為氣候、水文、植被演替,人為驅(qū)動(dòng)力為人類開發(fā)活動(dòng)和政策導(dǎo)向。據(jù)此,提出3條建議以便更有效地保護(hù)自然保護(hù)區(qū)和周邊區(qū)域的自然性,為閩江河口濕地自然保護(hù)區(qū)的科學(xué)管理提供參考。
[Abstract]:Minjiang River Estuary Wetland Nature Reserve is an important part of Fujian coastal wetland nature reserve network. By interpreting the remote sensing images of 2003 and 2013, RS and GIS spatial analysis techniques are used to calculate the natural landscape characteristics. Ecological disturbance and landscape fragmentation degree were three indexes, and on this basis, two levels of landscape natural evaluation index system was constructed. At the same time, the weight of each index layer is calculated by AHP, and the change of landscape naturalness in the study area between 2003 and 2013 is analyzed quantitatively. Furthermore, the influence of different distance annular zone on the landscape naturalness of wetland reserve and surrounding area was discussed, and the changes of landscape naturalness in Minjiang River estuary wetland reserve and its surrounding area were analyzed. The results showed that the landscape naturalness of Minjiang River Estuary Wetland Nature Reserve decreased by 9.17% from 2003 to 2013, and the landscape naturalness decreased with the increase of distance from the Nature Reserve to Minjiang River Estuary Wetland Nature Reserve. The natural driving force of landscape natural change is climate, hydrology and vegetation succession. Based on this, three suggestions are put forward in order to protect the nature of nature reserve and surrounding area more effectively, and provide reference for the scientific management of the wetland nature reserve in Minjiang River estuary.
【作者單位】: 福州大學(xué)環(huán)境與資源學(xué)院;福州市環(huán)境監(jiān)測中心站;
【基金】:福州大學(xué)科技發(fā)展基金資助項(xiàng)目(2013-XY-10);福州大學(xué)科研啟動(dòng)資助項(xiàng)目(0060510028)
【分類號(hào)】:P901;X36
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