Impacts of Sloping Land Conversion Program on the vegetation in loess hilly and gully area of northern Shaanxi-中国期刊网

摘要 Aimingatalleviatingtheserioussoilerosion,theChinesegovernmentinitiatedtheSlopingLandConversionProgram(SLCP)in1999.Now,after8yearsofprojectimplementation,theecologicalrecoveryeffectsoftheSLCPhavebecomethehotissueofacademiccircle.Thispaper,takingtheloesshillandgullyareaofnorthernShaanxiasanexample,presentsamethodologyforassessingthevegetationrestorationeffectofSLCPwithnormalizeddifferencevegetationindex(NDVI).ThekeycomponentsincludecalculationoftheGrowingSeasonNDVI(GSNDVI),andestimationoftheNVDIchangeinducedbyclimateandSLCP,respectively.Basedonthemethod,theNDVIchangebetween2000and2006wasobtainedusingtheGSNDVIthatexcludedthenoisefromsnowandice.AfterthepartoftotalNDVIchangecausedbyclimatevariationwasestimatedusingempiricformulae,weobtainedthepartinducedbyhumanfactors,i.e.theSLCP.ThehumaninducedpartofNDVIchangewasconsideredasanapproximationindicatingtheeffectoftheSLCPonthevegetation.Finally,weanalyzedtheNDVIchangecharactersofthewholestudyarea,differentslopelandsanddifferentlandusetypesbyspatialstatisticsmethod.ResultsshowthatthevegetationconditionissignificantlyimprovedbytheSLCP,particularlylandtypesthatdirectlyinvolvedintheSLCP,suchassteeplyslopefarmlands,degradedgrasslands,etc.

1WU Shuirong. Extension Strategies in Sloping Land Conversion Program in China： An Analysis of Strengths and Limitations.林学,2005-04.
2WANG Jun;ZHONG Lina;ZHAO Wenwu;YING Lingxiao. The influence of rainfall and land use patterns on soil erosion in multi-scale watersheds： A case study in the hilly and gully area on the Loess Plateau, China.自然地理学,2018-10.
3Wang Qian;Lu Changhe;Yu Bohua;Ma Junfei. The SLCP-driven land use changes and farmers＇ responses in the loess hilly and gully region： a case study for Ansai County.政治经济学,2009-04.
4齐实;孙立达;孙保平. Study on Small Watershed Management and Agricultural Development Technique in Semi-arid Hilly-gully Region of Loess Plateau.林学,1998-01.
5LI Jing REN Zhiyuan ZHOU Zixiang. Quantitative analysis of the dynamic change and spatial differences of the ecological security： a case study of Loess Plateau in northern Shaanxi Province.自然地理学,2006-02.
6杨晓晖;张克斌. The Impacts of Irrational Exploitation and Utilization of Water Resources on Land Desertification and Its Countermeasures in the Arid Area of China.林学,1997-02.
7. mutual conversion of land use between urban and rural area in the process of urbanization: a case study of shandong province.环境科学,2007-02.
8李占清;翁笃鸣. A NUMERICAL MODEL FOR HILLY-LAND GLOBAL RADIATION.大气科学及气象学,1989-05.
9WANG Zhiqiang;LIU Baoyuan;ZHANG Yan. Soil moisture of different vegetation types on the Loess Plateau.自然地理学,2009-06.
10. RILL INITIATION AND EROSION ON HILLSLOPES IN THE HILLY LOESS REGION,WESTERN SHANXI PROVINCE.地球物理学,1993-03.

Impacts of Sloping Land Conversion Program on the vegetation in loess hilly and gully area of northern Shaanxi

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Impacts of Sloping Land Conversion Program on the vegetation in loess hilly and gully area of northern Shaanxi

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