Land use and landscape change driven by gully land consolidation project: A case study of a typical watershed in the Loess Plateau
Land use and landscape change driven by gully land consolidation project: A case study of a typical watershed in the Loess Plateau
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沟壑土地整治工程驱动的土地利用与景观变化——以黄土高原典型流域为例
DOI：
10.1007/s11442-019-1623-0
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发表时间：
2019-04
影响因子：
4.9
通讯作者：
Liu Yansui
中科院分区：
文献类型：
--
作者：
Li Yurui;Li Yi;Fan Pengcan;Sun Jian;Liu Yansui
探讨土地整理对当地土地利用和景观格局变化的影响，对于优化土地整理模式，促进当地社区的可持续发展具有重要意义。以延安市典型小流域(陕西省中国)为例，基于高分辨率遥感影像数据和景观格局分析，研究了沟谷土地整理对土地利用和景观格局变化的影响。结果表明：(1)沟底和沟谷两侧的梯田、坡地、灌丛、草地主要转化为优质淤地坝用地。此外，由于生物措施，一些灌木地被改造成更适合生态的原生林。其中，淤地坝地和林地面积分别增加159公顷和70公顷，灌丛、草地和坡地面积分别减少112公顷、63公顷和59公顷。(2)淤地坝土地的平均斑块面积和斑块内聚力指数均有所增加，表明生产功能得到改善。林地和灌丛的景观形状指数和斑块聚集度指数保持在较高水平，生态功能保持稳定。(3)在流域水平上，景观破碎化程度降低，景观趋于多样化和均衡化，景观的抗干扰性和生态系统的稳定性也有所提高。研究表明，合理实施沟谷土地整理，可能有助于改善当地土地利用结构和景观格局。
Exploring the impact of land consolidation on the changes of local land use and the landscape patterns is important for optimizing land consolidation models and thus accelerating the sustainable development of local communities. Using a typical small watershed in Yan’an City (Shaanxi, China), the impact of gully land consolidation on land use and landscape pattern change, based on high-resolution remote sensing image data and landscape pattern analysis, was investigated. The results showed that: (1) The terraces, sloping fields, shrub land and grassland at the bottom and both sides of the gully were converted mainly to high quality check dam land. Also, some of the shrub land, due to biological measures, was converted to more ecologically suitable native forest. Thus, the areas of check dam land and forests increased by 159 and 70 ha, while that of shrub land, grassland and sloping fields decreased by 112, 63 and 59 ha, respectively. (2) The average patch area and patch cohesion index for the check dam land increased, which indicated that the production function improved. The landscape shape index and the patch cohesion index for forestland and shrub land were maintained at a high level, and thus the ecological function remained stable. (3) At the watershed level, the degree of fragmentation of the landscape decreased and the landscape became more diversified and balanced; the anti-jamming capability of the landscape and the stability of the ecosystem improved also. Research suggests that implementing gully land consolidation in a rational manner may contribute to improvements in the structure of local land use and the patterns of landscape.
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DOI：
--
发表时间：
2004
期刊：
Research of Soil and Water Conservation
影响因子：
--
作者：
Zheng Fen-li
通讯作者：
Zheng Fen-li
影响因子：
7.1
作者：
Bin Zhao;U. Kreuter;Bo Li;Zhijun Ma;Jia-kuan Chen;N. Nakagoshi
通讯作者：
Bin Zhao;U. Kreuter;Bo Li;Zhijun Ma;Jia-kuan Chen;N. Nakagoshi
影响因子：
11.1
作者：
Li, Yurui;Cao, Zhi;Li, Wangjun
通讯作者：
Li, Wangjun
影响因子：
--
作者：
陈利顶 Chen Liding;李秀珍 Li Xiuzhen;傅伯杰 Fu Bojie;肖笃宁 Xiao Duning;赵文武 Zhao Wenwu
通讯作者：
陈利顶 Chen Liding;李秀珍 Li Xiuzhen;傅伯杰 Fu Bojie;肖笃宁 Xiao Duning;赵文武 Zhao Wenwu
人为贡献主导中国北方农牧交错带植被覆盖变化趋势
影响因子：
6.9
作者：
Liu, Zhengjia;Liu, Yansui;Li, Yurui
通讯作者：
Li, Yurui