Interaction Between Urban Land Expansion and Ecological Environment Protection:Case Study of Changsha-Zhuzhou-Xiangtan Urban Agglomeration
Received date: 2020-07-28
Revised date: 2021-01-19
Online published: 2025-03-31
The interaction between urban land expansion and ecological environment protection is a reflection and manifestation of urban agglomeration's urban development and the element flow of ecological environmental protection. It is of great significance to systematically construct its interaction mechanism for enriching the theory of urban agglomeration expansion and optimizing the spatial structure of the urban agglomeration. Based on the construction of the interaction framework between urban land expansion and ecological environmental protection in urban agglomerations,this study utilized grey relational analysis(GRA) model to reveal their interaction. Moreover,the symbiosis theory was introduced into the study of urban agglomeration expansion so as to propose new ideas for urban land expansion in terms of symbiosis between urban development and ecological protection. The results of the research were found that: 1) There is a strong interaction between urban land expansion and ecological environmental protection in the urban agglomeration,and the intensity of which among various elements exhibits periodic and differentiated characteristics. 2) Composed of three dimensions including nature,economic society,and space,the "driver-coordination-constraint" symbiotic mechanism forms the driving force mechanism to realize the symbiotic development of urban land expansion and ecological environmental protection. Ecological environmental protection,through zoning management and control,restoration and repair,has developed a multi-dimensional interaction with urban land expansion,mainly concerning monitoring and early warning,as well as urban renewal,and ultimately achieve their symbiotic development. 3) Starting from the symbiotic mechanism framework,countermeasures and suggestions on the symbiotic development of urban agglomeration urban land expansion and ecological environmental protection were put forward in an effort to realize an efficient and intensive,ecologically safe,livable and affordable space structure of urban agglomeration.
OUYANG Xiao , LI Yonghui , XU Fan , CHEN Jianshe , HUANG Mei . Interaction Between Urban Land Expansion and Ecological Environment Protection:Case Study of Changsha-Zhuzhou-Xiangtan Urban Agglomeration[J]. Economic geography, 2021 , 41(7) : 193 -201 . DOI: 10.15957/j.cnki.jjdl.2021.07.021
表1 城市用地扩张与生态环境保护交互作用评价指标体系Tab.1 Evaluation index system of interaction between urban land expansion and ecological environment protection |
准则层 | 一级指标 | 二级指标 | 指标性质 |
---|---|---|---|
社会经济压力系统 (0.2318) | 经济发展水平(S1) | 人均GDP(万元/人)(S11) | 正向 |
都市农业增加值(万元)(S12) | 正向 | ||
工业增加值占比(%)(S13) | 正向 | ||
第三产业增加值占比(%)(S14) | 正向 | ||
实际利用外资占GDP比例(%)(S15) | 正向 | ||
社会发展水平(S2) | 城镇化率(%)(S21) | 正向 | |
城镇居民人均可支配收入(元)(S22) | 正向 | ||
城镇登记失业率(%)(S23) | 负向 | ||
R&D经费投入(万元)(S24) | 负向 | ||
城市用地状态系统 (0.3204) | 扩张规模水平(U1) | 城市用地面积占比(%)(U11) | 负向 |
人均居住用地面积(m2)(U12) | 负向 | ||
人均道路面积(m2)(U13) | 负向 | ||
工业用地面积占比(%)(U14) | 负向 | ||
城市用地扩张强度(%)(U15) | 负向 | ||
扩张质量水平(U2) | 建成区人口密度(人/km2)(U21) | 正向 | |
建成区GDP密度(元/km2)(U22) | 正向 | ||
生态环境响应系统 (0.4478) | 资源消耗(E1) | 能源消耗总量(万t标准煤)(E11) | 负向 |
消耗电量(亿kW·h)(E12) | 负向 | ||
取水总量(万m3)(E13) | 负向 | ||
环境负荷(E2) | 废水排放总量(万t)(E21) | 负向 | |
废气排放总量(万t)(E22) | 负向 | ||
一般工业固体废物产生量(万t)(E23) | 负向 | ||
生态现状(E3) | 生态一般用地面积(km2)(E31) | 正向 | |
人均公园绿地面积(m2)(E32) | 正向 | ||
水资源总量(万m3)(E33) | 正向 | ||
环境治理(E4) | 环境治理投资占比(%)(E41) | 正向 | |
工业SO2去除率(%)(E42) | 正向 | ||
生态绿心补偿投入(万元)(E43) | 正向 | ||
工业固体废弃物综合利用率(%)(E44) | 正向 |
表2 城市用地扩张系统与生态环境保护系统指标之间的灰色关联度Tab.2 The grey correlation between urban land expansion system and ecological environmental protection system |
E1 | E2 | E4 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
E11 | E12 | E13 | E21 | E22 | E23 | E41 | E42 | E43 | E44 | |||||
S1 | S11 | 0.628 | 0.612 | 0.683 | 0.635 | 0.641 | 0.622 | 0.602 | 0.665 | 0.702 | 0.606 | 0.644 | ||
S12 | 0.674 | 0.604 | 0.648 | 0.581 | 0.593 | 0.506 | 0.582 | 0.655 | 0.682 | 0.616 | 0.613 | |||
S13 | 0.682 | 0.664 | 0.646 | 0.567 | 0.758 | 0.652 | 0.658 | 0.658 | 0.676 | 0.591 | 0.669 | |||
S14 | 0.670 | 0.597 | 0.631 | 0.550 | 0.581 | 0.520 | 0.645 | 0.658 | 0.635 | 0.591 | 0.628 | |||
S15 | 0.542 | 0.509 | 0.606 | 0.579 | 0.566 | 0.537 | 0.648 | 0.712 | 0.702 | 0.579 | 0.620 | |||
S2 | S21 | 0.683 | 0.669 | 0.659 | 0.573 | 0.772 | 0.628 | 0.592 | 0.662 | 0.647 | 0.624 | 0.650 | ||
S22 | 0.565 | 0.603 | 0.591 | 0.551 | 0.576 | 0.542 | 0.617 | 0.577 | 0.604 | 0.591 | 0.585 | |||
S23 | 0.615 | 0.505 | 0.611 | 0.653 | 0.590 | 0.542 | 0.637 | 0.669 | 0.627 | 0.660 | 0.620 | |||
S24 | 0.528 | 0.469 | 0.571 | 0.488 | 0.516 | 0.476 | 0.612 | 0.711 | 0.629 | 0.566 | 0.590 | |||
U1 | U11 | 0.709 | 0.643 | 0.566 | 0.627 | 0.616 | 0.628 | 0.616 | 0.563 | 0.645 | 0.608 | 0.618 | ||
U12 | 0.648 | 0.588 | 0.623 | 0.540 | 0.555 | 0.485 | 0.602 | 0.716 | 0.659 | 0.587 | 0.622 | |||
U13 | 0.693 | 0.674 | 0.670 | 0.565 | 0.785 | 0.640 | 0.601 | 0.670 | 0.639 | 0.632 | 0.656 | |||
U14 | 0.651 | 0.592 | 0.632 | 0.552 | 0.567 | 0.496 | 0.615 | 0.716 | 0.820 | 0.596 | 0.654 | |||
U15 | 0.582 | 0.526 | 0.565 | 0.603 | 0.584 | 0.546 | 0.631 | 0.671 | 0.717 | 0.616 | 0.622 | |||
U2 | U21 | 0.595 | 0.528 | 0.630 | 0.609 | 0.590 | 0.496 | 0.593 | 0.697 | 0.697 | 0.591 | 0.624 | ||
U22 | 0.617 | 0.511 | 0.602 | 0.608 | 0.548 | 0.487 | 0.605 | 0.704 | 0.662 | 0.616 | 0.622 | |||
0.630 | 0.581 | 0.621 | 0.580 | 0.615 | 0.550 | 0.616 | 0.668 | 0.671 | 0.604 |
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