北京大学学报自然科学版 ›› 2019, Vol. 55 ›› Issue (3): 509-518.DOI: 10.13209/j.0479-8023.2019.017

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基于地理加权回归的生境质量对土地利用变化的响应——以河北省张家口市为例

王惠1,2, 许月卿1,2,†, 刘超1,2, 黄安1,2, 卢龙辉1,2, 郑伟然1,2   

  1. 1. 中国农业大学土地科学与技术学院, 北京 100193 2. 国土资源部农用地质量与监控重点实验室, 北京 100193
  • 收稿日期:2018-04-09 修回日期:2018-09-23 出版日期:2019-05-20 发布日期:2019-05-20
  • 通讯作者: 许月卿,E-mail:xmoonq(at)sina.com
  • 基金资助:
    国家自然科学基金(41571087)资助

Response of Habitat Quality to Land Use Change Based on Geographical Weighted Regression

WANG Hui1,2, XU Yueqing1,2,†, LIU Chao1,2, HANG An1,2, LU Longhui1,2, ZHENG Weiran1,2   

  1. 1. College of Land Science and Technology, China Agricultural University, Beijing 100193 2. Key Laboratory for Agricultural Land Quality, Monitoring and Control, the Ministry of Land and Resources, Beijing 100193
  • Received:2018-04-09 Revised:2018-09-23 Online:2019-05-20 Published:2019-05-20
  • Contact: XU Yueqing,E-mail:xmoonq(at)sina.com

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摘要：

基于张家口市2000, 2010和2015年3期土地利用数据, 用InVEST模型进行生境质量评估, 采用地理加权回归模型(GWR)定量分析不同区域耕地、林地、草地和建设用地变化对生境质量演变的影响。研究结果显示, 2000—2015年间, 张家口市土地利用类型以耕地、林地和草地为主, 耕地大量减少, 林地和建设用地持续增加, 以耕地向林地、草地和建设用地转移以及草地向林地和建设用地转移为主要变化方向。张家口市生境质量整体上处于较高水平并不断提高, 东北坝缘山区和东南边缘山地生境质量最高, 坝上高原区及桑干河流域河谷盆地次之, 洋河河谷盆地生境质量最低。各地类对生境质量的影响具有显著的时空异质性: 林地与生境质量变化总体上呈正相关关系且影响程度最大; 草地与生境质量变化大致正相关, 其回归系数由北向南递减; 耕地和建设用地与生境质量在空间上主要表现为负相关, 局部地区正相关。究其原因, 主要在于不同区域生境质量变化的主导地类不同。坝上高原和坝缘山区的生境质量变化主要受林地和草地变化的影响, 桑干河和洋河流域河谷盆地生境质量变化的主导因子则为耕地和建设用地。

关键词: 土地利用变化, 生境质量, InVEST 模型, 地理加权回归, 张家口市

Abstract:

Based on land use data of Zhangjiakou in 2000, 2010 and 2015, this paper investigated the spatiotemporal variation of habitat quality pattern of Zhangjiakou City by using InVEST, in order to understand the spatial patterns associated with the change of land use and habitat quality change, further introducing the geographical weighted regression (GWR) model, to quantitativly analyze the influence of cultivated land, woodland, grassland and construction land change on the evolution of habitat quality. The results showed that in the year 2000–2015, cultivated land, forest land and grassland were the main types of land use in Zhangjiakou City, during the reduction of cultivated land, forest land and construction land kept increasing, with farmland to woodland, grassland and construction land, grassland to forest landand construction land as the main transfer directions of change. During 2000–2015, Zhangjiakou City habitat quality was at a higher level overall and kept improving. Habitat quality was highest in northeast mountain area, Bashang plateau and the the Sanggan River valley region was lower, and the lowest level of habitat quality was in Yanghe River watershed. The influence of each land use type on habitat quality had significant spatio-temporal heterogeneity, and the change of forest land was positively correlated with habitat quality overall and most influential. The grassland had a positive correlation with the habitat quality, and its regression coefficient decreased from north to south. The main performance of cultivated land, construction land and habitat quality was negative correlation in space, but some area was positive correlation. The reason for the large heterogeneity of the regression coefficients in different regions lied in the different dominant types of habitat quality changes in different regions. The change of habitat quality in the plateau area and the northeast mountain area was mainly affected by woodland and grassland changes, and in Sanggan River and Yanghe River, the change of habitat quality basin for cultivated land and construction land.

Key words: land use change, habitat quality, InVEST, geographical weighted regression, Zhangjiakou City

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