基于地表湿润指数的农牧交错带地区生态安全格局构建——以内蒙古自治区杭锦旗为例

doi:10.13287/j.1001-9332.201806.015

应用生态学报 ›› 2018, Vol. 29 ›› Issue (6): 1990-1998.doi: 10.13287/j.1001-9332.201806.015

基于地表湿润指数的农牧交错带地区生态安全格局构建——以内蒙古自治区杭锦旗为例

彭建^1,2*,贾靖雷²,胡熠娜¹,田璐²,李慧蕾¹

¹北京大学城市与环境学院地表过程分析与模拟教育部重点实验室, 北京 100871;
²北京大学深圳研究生院城市规划与设计学院城市人居环境科学与技术重点实验室, 广东深圳 518055

收稿日期:2017-10-10 修回日期:2018-03-12 出版日期:2018-06-18 发布日期:2018-06-18
通讯作者: E-mail: jianpeng@urban.pku.edu.cn
作者简介:彭建,男,1976年生,博士,副教授.主要从事景观生态与土地利用、区域生态持续性评估研究. E-mail: jianpeng@urban.pku.edu.cn
基金资助:
本文由国土资源部公益性行业科研专项(201511001-01)资助

Construction of ecological security pattern in the agro-pastoral ecotone based on surface humid index: A case study of Hangjin Banner, Inner Mongolia Autonomous Region, China.

PENG Jian^1,2*, JIA Jing-lei², HU Yi-na¹, TIAN Lu², LI Hui-lei¹

¹Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;
²Key Laboratory for Environmental and Urban Sciences, School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen 518055, Guangdong, China

Received:2017-10-10 Revised:2018-03-12 Online:2018-06-18 Published:2018-06-18
Supported by:
This work was supported by the Commonwealth Project of the Ministry of Land and Resources of China (201511001-01).

摘要/Abstract

摘要： 区域生态安全格局的构建可以有效保障区域生态安全、实现区域可持续发展,已经成为景观生态学研究的热点和重点之一.对于生态本底较为脆弱、地表覆被类型较为单一的内蒙古高原地区来说,区域生态安全格局的构建尤为重要.本研究以内蒙古自治区杭锦旗为例,针对区域自然环境特征,选取食物供给、固碳释氧、土壤保持、产水、生境维持5种典型生态系统服务评估区域生境重要性,并在综合考虑单一生态系统服务质量和景观多功能性的基础上识别生态源地;利用地表湿润指数修正基于地表覆被赋值的基本生态阻力面,并运用最小累积阻力模型识别生态廊道,从而构建杭锦旗生态安全格局.结果表明: 杭锦旗生态源地面积为6781.70 km²,占全旗土地总面积的35.9%,主要分布在北部河套平原和南部鄂尔多斯草原地带;杭锦旗生态廊道总长度为498.51 km,库布齐沙漠将其从中隔断分为南北两个组团.针对北方农牧交错带干旱、脆弱的生态基底特征,构建区域生态安全格局,可为当地经济开发建设和生态保护提供决策指引.

Abstract: The construction of regional ecological security pattern can effectively protect regional ecological security and achieve regional sustainable development, which has become one of the key topics in landscape ecology. The construction of regional ecological security pattern is particularly important for the Inner Mongolia Plateau, which is characterized by relatively fragile ecological environment and single land cover type. Considering regional natural environment characteristics, five typical ecosystem services, such as food supply, carbon fixation and oxygen release, soil conservation, water yield and habitat conservation, were selected to assess the importance of natural habitats with Hangjin Banner of Inner Mongolia Autonomous Region as a case study area. Based on comprehensive consideration of single ecosystem service quality and landscape multi-functionality, ecological sources were identified. The basic ecological resistance surface based on the land cover was revised by the surface humid index. The minimum cumulative resistance model was used to identify the ecological corridors, to construct the ecological security pattern of Hangjin Banner. The results showed that the ecological source of Hangjin Banner was 6781.70 km², accounting for 35.9% of the whole area, which mainly located in the northern Hetao Plain and southern Ordos steppe zone. The total ecological corridor length of Hangjin Banner was 498.51 km, which was divided into two groups from north to south by Kubuqi Desert. Based on the arid and ecologically fragile characteristics in the agro-pastoral ecotone in northern China, this study constructed regional ecological security pattern to provide decision-making guidelines for local economic development and ecological conservation.

彭建,贾靖雷,胡熠娜,田璐,李慧蕾. 基于地表湿润指数的农牧交错带地区生态安全格局构建——以内蒙古自治区杭锦旗为例[J]. 应用生态学报, 2018, 29(6): 1990-1998.

PENG Jian, JIA Jing-lei, HU Yi-na, TIAN Lu, LI Hui-lei. Construction of ecological security pattern in the agro-pastoral ecotone based on surface humid index: A case study of Hangjin Banner, Inner Mongolia Autonomous Region, China.[J]. Chinese Journal of Applied Ecology, 2018, 29(6): 1990-1998.

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基于地表湿润指数的农牧交错带地区生态安全格局构建——以内蒙古自治区杭锦旗为例

Construction of ecological security pattern in the agro-pastoral ecotone based on surface humid index: A case study of Hangjin Banner, Inner Mongolia Autonomous Region, China.

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