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[1]LIU Mengzhu,ZHANG Hongjuan,WANG Yanfang,et al.Characteristics of Habitat Quality in the Agro-pastoral Ecotone of Northern China Based on Land Uses[J].Research of Soil and Water Conservation,2021,28(03):156-162.

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Characteristics of Habitat Quality in the Agro-pastoral Ecotone of Northern China Based on Land Uses

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 03 Page number: 156-162 Column: Public date: 2021-04-20

Title:: Characteristics of Habitat Quality in the Agro-pastoral Ecotone of Northern China Based on Land Uses

Author(s):: LIU Mengzhu^1,2, ZHANG Hongjuan^1,2, WANG Yanfang³, PEI Hongwei^1,2; (1.Department of Municipal and Environmental Engineering,Hebei University of Architecture,Zhangjiakou,Hebei075000,China;2.Hebei Key Laboratory of Water Quality Engineering and Comprehensive Utilization of Water Resources,Zhangjiakou,Hebei 075000,China;3.Hebei GEO University,Shijiazhuang050031,China)

Keywords:: habitat quality; land use; agro-pastoral ecotone of northern China; InVEST model; returning farmland to forest and grassland

CLC:: X826

DOI:: -

Abstract:: Understanding the spatiotemporal changes of habitat quality and its concrete driving factors accurately could help generate a scientific basis for local regional ecological construction and sustainable development, especially in ecologically fragile areas. Taking the agro-pastoral ecotone of northern China as study site, we analyzed the characteristics of land use change and habitat quality evolution by using dynamic degree, transfer matrix and InVEST model under the perspective of land use through the land use data of the study area in 2000, 2010 and 2018. The results indicated that:(1)from 2000 to 2018, grassland, cultivated land and forestland still served as the main land use types of the northern agro-pastoral ecotone, covering an area of more than 4.3×10⁵ km², accounting for 90%, among which forestland and construction land had expanded significantly, and grassland and cultivated land were accordingly opposite;(2)the total area of higher and above level habitat quality overspreaded 48% of the study area, meanwhile the proportion of lower and higher level habitat quality tended to be nearly similar, both floating at 32%～35% during the past two decades;(3)during the period of study, more than 7 300km² of the area of habitat quality tended to be better under the drivers of returning farmland to forest and grassland, yet the area of degradation reached less 1 200 km². In summary, for the recent two decades, the habitat quality of the northern agro-pastoral ecotone was relatively higher as a whole, exhibiting a distribution state of ‘south high, north low'. The policy of returning farmland to forest and grassland could be considered as one of the main reasons for the improvement of the habitat quality in the northern agro-pastoral ecotone.

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Last Update: 2021-04-20