隴東地區(qū)生態(tài)承載力時(shí)空格局及其驅(qū)動(dòng)因子研究.pdf

1、蘭州大學(xué)碩士學(xué)位論文隴東地區(qū)生態(tài)承載力時(shí)空格局及其驅(qū)動(dòng)因子研究姓名：劉俊艷申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：地圖學(xué)與地理信息系統(tǒng)指導(dǎo)教師：馬金輝20100501蘭州人學(xué)碩lj學(xué)位論文隴東地區(qū)生態(tài)承載力時(shí)窄格局及j￡驅(qū)動(dòng)圜了研究AbstractEcologicalCarryingCapacity(ECC)isthebaseofregionsustainabledevelopmentAsatypicalregionofJingheBasininthe

2、heartofLoessPlateau，LongDongistheimportantareaofeconomicdevelopmentinGansuWithpoornaturalenvironment，seriousdamagetovegetation，thestudyareaisthemostserioussoilerosionandecologicalimbalanceregioninYellowRivermiddlereaches

3、Whileurbanexpansion，miningandotherhumanactivitiesinrecentyears，theecologicalproblemofLongDongisfurtherexacerbatedTherefore，scientificevaluationoftheecologicalcarryingcapacityismeaningfultoimprovetheecologicalenvironmento

4、fLongdongForthemoment，mostoftheecologicalcarryingcapacityestimatesarebasedonStatisticalYearbookandstatisticaldataoflanduse，assessmentofregionalecologicalcarryingcapacitycombinedwithlandusehaslessinvolvedWiththehelpofRSGI

5、Stechnologies，thisessaystudyedfourtimesoflandUse／landCoverandecologicalcarryingcapacitythroughtheecologicalfootprintmethod，realizedthespaceofregionalecologicalcarryingcapacity，andmadeupforthedeficienciesoftraditionalmeth

6、odsMeanwhile，theessaydidfurtherstudyonthedrivingfactorsoftheecologicalcarryingcapacityTheresultsshowinthefollowing：(1)MostofthelandofLongdongarearableandgrassland1986～2008，allofthelandhaveoccurredchanges，thenetvariationo

7、ftransferareaareconcentratedonarable，grasslandandwoodlandTransfertrendsoflanduse：arableturnintoforestandgrassland，waterandlandforurbanandruralresidentsmainlyturnintoarable(2)Thetotalregionalandpercapitalecologicalcarryin

8、gcapacityalldecreasedThroughthreescalesstudythepaperindicatedthatthesupplyofecologicalcarryingcapacityisunevendistributioninspace，therelationshipbetweenecologicalcarryingcapacityandlanduseandlandproductivityishighcorrela