本文選題：磴口縣　切入點(diǎn)：生態(tài)系統(tǒng)服務(wù)　出處：《內(nèi)蒙古農(nóng)業(yè)大學(xué)》2017年碩士論文

【摘要】：生態(tài)系統(tǒng)服務(wù)評(píng)估有助于人類(lèi)了解生態(tài)系統(tǒng)的開(kāi)發(fā)潛力,實(shí)現(xiàn)科學(xué)開(kāi)發(fā)與利用,相關(guān)研究已成為國(guó)際地學(xué)和生態(tài)學(xué)的研究熱點(diǎn)。國(guó)外常利用各類(lèi)物質(zhì)量模型評(píng)估生態(tài)系統(tǒng)服務(wù),近些年也逐漸成為我國(guó)生態(tài)系統(tǒng)服務(wù)評(píng)估的主要方法。本文基于遙感及第二次全國(guó)土地調(diào)查變更數(shù)據(jù),分析2015年磴口縣土地利用情況,并利用InVEST模型,對(duì)碳貯存、土壤保持、產(chǎn)水量三項(xiàng)服務(wù)進(jìn)行評(píng)估,并對(duì)其空間關(guān)系、與各類(lèi)環(huán)境因子的關(guān)系、相互之間的權(quán)衡或協(xié)同關(guān)系進(jìn)行識(shí)別與分析,為磴口縣生態(tài)系統(tǒng)的保護(hù)與管理提供理論依據(jù)。主要結(jié)論如下:(1)磴口縣總面積367627hm2,主要地類(lèi)為天然草地(26.56%)、裸地(17.98%)、沙地(17.12%)、水澆地(14.79%)。(2)2015年磴口縣碳貯存量為7.47× 107kg,平均碳密度為20.30 g · m2,主要分布于天然牧草地(29.61%)、沙地(28.25%)、裸地(18.14%);土壤保持量為1.97×107t,平均單位土壤保持量為5.45kg·m-2,集中分布于裸地(94.07%);產(chǎn)水量為1.10×107m3,平均單位面積產(chǎn)水量為3.00mm,主要分布于天然牧草地(28.39%)、裸地(24.78%)、沙地(20.16%)。(3)碳貯存服務(wù)熱點(diǎn)分布在西北、中部及西南地區(qū);土壤保持服務(wù)熱點(diǎn)區(qū)域不明顯,零星分布在西北地區(qū);產(chǎn)水量服務(wù)熱點(diǎn)分布在中部、西部及西南部區(qū)域,但面積較小。(4)磴口縣各主要地類(lèi)中碳貯存服務(wù)主要與土壤因素顯著相關(guān);土壤保持服務(wù)主要與地形因素顯著相關(guān);產(chǎn)水量服務(wù)主要與植被蓋度及植被可利用有效水分含量顯著相關(guān)。(5)土壤保持服務(wù)與碳貯存服務(wù)、土壤保持服務(wù)與產(chǎn)水量服務(wù)之間均表現(xiàn)為協(xié)同關(guān)系,碳貯存服務(wù)與產(chǎn)水量服務(wù)為權(quán)衡關(guān)系。
[Abstract]:Ecosystem service assessment is helpful for human beings to understand the potential of ecosystem development and realize scientific development and utilization. The related research has become a hotspot in international geoscience and ecology. In recent years, it has gradually become the main method of ecosystem service assessment in China. Based on the data of remote sensing and the change of the second national land survey, this paper analyzes the land use situation in Dengkou County in 2015, and uses InVEST model to store carbon and conserve soil. Three services of water production are evaluated, and their spatial relationships, relationships with various environmental factors, trade-offs or synergies between them are identified and analyzed. The main conclusions are as follows: Dengkou County has a total area of 367627hm2.The main land types are natural grassland 26.5656g, bare land 17.98g, sandy land 17.12g, irrigated land 14.797.795) Dengkou County carbon storage 7.47 脳 107kg, average carbon density 7.47 脳 107kg in 2015. The degree is 20.30 g m2, mainly distributed in natural forage land (29.61m ~ (-2)), sand land is 28.25m ~ (-1), bare land is 18.14m ~ (-1), soil conservation is 1.97 脳 10 ~ (7) t, average soil conservation is 5.45kg m ~ (-2), it is mainly distributed in bare land (94.07m ~ (-2)), water yield is 1.10 脳 10 ~ (7) m ~ (3), average water yield per unit area is 3.00 mm. The hot spots of carbon storage services are distributed in the northwest of China, where natural forage land is 28.39, bare land is 24.78, and sand is 20.16. Central and southwest regions; soil conservation service hot spots are not obvious, scattered in the northwest region; water production service hot spots in the central, western and southwest regions, In Dengkou County, carbon storage services were mainly related to soil factors, soil conservation services were mainly related to topographic factors. Water yield service was mainly related to vegetation coverage and available water content of vegetation. 5) soil conservation service and carbon storage service, and there was a synergistic relationship between soil conservation service and water yield service. Carbon storage services and water production services are trade-offs.
【學(xué)位授予單位】：內(nèi)蒙古農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：X826

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本文編號(hào)：1696988