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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第45卷

期数:

2023年第04期

页码:

895-906

栏目:

环境与可持续发展专刊

出版日期:

2023-07-15

文章信息/Info

Title:

Landscape Ecological Risk Assessment and Ecological Restoration Zoning of Cultivated Land in Inner Mongolia, China

文章编号:

1672-6561(2023)04-0895-12

作者:

舒翰俊¹; 范顺祥¹; 姜亚东²; 王立群³; 李经纬¹; 宇振荣¹; 刘云慧^1*

(1. 中国农业大学 资源与环境学院,北京 100193; 2. 内蒙古自治区地质调查研究院,内蒙古 呼和浩特 010020; 3. 呼伦贝尔市自然资源局,内蒙古 呼伦贝尔 021199)

Author(s):

SHU Han-jun¹;  FAN Shun-xiang¹;  JIANG Ya-dong²;  WANG Li-qun³;  LI Jing-wei¹;  YU Zhen-rong¹;  LIU Yun-hui^1*

(1. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; 2. Inner Mongolia Geological Survey Institute, Huhhot 010020, Inner Mongolia, China; 3. Hulun Buir Natural Resources Bureau, Hulun Buir 021199, Inner Mongolia, China)

关键词:

景观格局;  生态风险;  耕地;  空间主成分分析;  热点;  冷点;  生态修复;  内蒙古

Keywords:

landscape pattern;  ecological risk;  cultivated land;  spatial principal component analysis;  hot spot;  cold spot;  ecological restoration;  Inner Mongolia

分类号:

X171.4; F301.21

DOI:

-

文献标志码:

A

摘要:

诊断识别耕地面临的生态风险是开展耕地生态修复、保障耕地生态安全的先决条件。以“自然-社会-景观”多维度空间量化内蒙古耕地景观生态风险影响因子,通过空间主成分分析法完成耕地景观生态风险综合评价,以及各影响因子权重的量化; 基于评价结果,分析生态风险空间聚集特征,识别生态修复重点区域并提出修复对策。结果表明:①内蒙古耕地景观生态风险是多因素共同影响的结果,耕地景观破碎化、工矿污染、水资源胁迫和生境质量差是主要的生态问题。②耕地斑块分布集中、局部斑块面积大且完整、或沿河流分布时,其景观生态风险较低; 耕地斑块分布零散、局部斑块破碎或处于大面积耕地的边缘时,其景观生态风险较高。③耕地景观生态风险低值显著聚集于嫩江流域、西辽河流域、河套平原以及土默川平原西部,是显著的冷点区域; 高值显著聚集于内蒙古南部,是显著的热点区域。将热点区域划定为重点修复区,建议实施耕地破碎化整治、农田生态基础设施建设、节水灌溉工程建设、退耕还林还草等生态修复工程; 不显著区域划定为农田保育区,重点加强农田生态基础设施建设,扩大农业空间植被覆盖率; 冷点区域划定为农业发展区,主要发展绿色农业,推进种养结合。

Abstract:

Diagnosing and identifying the ecological risks of cultivated land is a critical prerequisite for carrying out ecological restoration and ensuring ecological security of cultivated land. The influence factors of landscape ecological risk of cultivated land in Inner Mongolia were quantified by multi-dimensional perspective of “nature-society-landscape”, the comprehensive landscape ecological risk of cultivated land was evaluated using spatial principal component analysis(SPCA), and the weight of each impact factor was quantified; based on evaluation results, the spatial aggregation characteristics of ecological risks, which was later used to identify the key areas of ecological restoration, were identified, and the restoration countermeasure was put forward. The results show that ① the landscape ecological risk of cultivated land in Inner Mongolia is driven by multiple factors, cultivated landscape fragmentation, mining pollution, water resources stress and poor habitat quality are the major ecological risks. ② The ecological risk is lower at the region, where the distribution of cultivated land is concentrated and the cultivated land patches are large and unbroken, or along the river; conversely, the ecological risk is higher at the region, where the cultivated land is scattered and the cultivated land patches are small or at the edge of the large area patches. ③ There is a significant spatial aggregation of landscape ecological risks of cultivated land in Inner Mongolia with cold spot areas distributing at Nenjiang River Basin, Xiliaohe River Basin, Hetao Plain and Tumochuan Plain, while the hot spot areas distributing at the south of Inner Mongolia. The hot spot areas are diagnosed as the key ecological restoration zones, where ecological restoration projects, including remediating farmland fragmentation, constructing farmland ecological infrastructure, constructing water-saving irrigation infrastructure, and returning farmland to forest or grassland, are recommended; the cold spot areas are diagnosed as agricultural development zones, where is suggested to develop green agriculture and promote the combination of planting and farming; other areas are diagnosed as farmland conservation areas, where is recommended to strengthen the construction of farmland ecological infrastructure and expand the vegetation coverage in agricultural space.

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相似文献/References:

[1]黄广生,吴方.基于GIS的陕北景观结构[J].地球科学与环境学报,2006,28(03):106.
　HUANG Guang-sheng,WU Fang.Landscape Pattern of Northern Shaanxi Based on GIS[J].Journal of Earth Sciences and Environment,2006,28(04):106.

备注/Memo

备注/Memo:

收稿日期:2022-09-09; 修回日期:2022-12-08投稿网址:http:∥jese.chd.edu.cn/
基金项目:国家自然科学基金项目(41871186)
作者简介:舒翰俊(1998-),男,安徽黄山人,理学硕士研究生,E-mail:shuhanjun9@163.com。
*通讯作者:刘云慧(1977-),女,云南罗平人,教授,博士研究生导师,理学博士,E-mail:liuyh@cau.edu.cn。

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更新日期/Last Update: 2023-06-20