耕地多功能权衡与协同关系的尺度效应——以武汉城市圈为例

doi:10.3969/j.issn.1004-1524.2022.01.21

浙江农业学报 ›› 2022, Vol. 34 ›› Issue (1): 184-195.DOI: 10.3969/j.issn.1004-1524.2022.01.21

耕地多功能权衡与协同关系的尺度效应——以武汉城市圈为例

杨凤妍子(), 胡伟艳^*(), 刘恬, 张丝雨

华中农业大学公共管理学院,湖北武汉 430070

收稿日期:2020-12-25 出版日期:2022-01-25 发布日期:2022-02-05
通讯作者: 胡伟艳
作者简介:* 胡伟艳,E-mail: hwymake@163.com
杨凤妍子(1996—),女,湖北黄冈人,硕士研究生,研究方向为土地资源经济与土地利用规划。E-mail: 479508644@qq.com
基金资助:
国家自然科学基金(71673105);国家社科基金重大项目(18ZDA054);中央高校基本科研业务费专项资金(2662020GGPY001)

Scale effects of trade-offs and synergies of multifunction of cultivated land: evidence from Wuhan Metropolitan Area

YANG Fengyanzi(), HU Weiyan^*(), LIU Tian, ZHANG Siyu

College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China

Received:2020-12-25 Online:2022-01-25 Published:2022-02-05
Contact: HU Weiyan

摘要/Abstract

摘要：

探讨耕地多功能权衡与协同关系的尺度效应对有效的耕地保护和可持续利用具有重要意义。以武汉城市圈为例,在建立评价指标体系开展耕地多功能评价的基础上,运用斯皮尔曼(Spearman)相关分析法,从4级尺度分析揭示耕地多功能权衡与协同关系的尺度变化规律。结果显示:耕地单项功能指数和多功能指数在不同尺度上呈现较明显的空间分异。耕地各功能之间的权衡与协同关系具有尺度效应,随着尺度的变化而变化。该研究可为不同层级管理决策者实施差异化耕地保护联动策略,进而促进耕地的多功能协同效应与可持续利用提供依据。

关键词: 耕地可持续利用, 耕地多功能, 权衡, 协同, 尺度效应, 武汉城市圈

Abstract:

It is of significance to explore the scale effect of trade-offs and synergies of multifunction of cultivated land for the effective protection and sustainable utilization of cultivated land. Thus, Wuhan Metropolitan Area, China, was selected as the study area to explore the trade-offs and synergies of multifunction of cultivated land at multiple scales based on the establishment of evaluation system of multifunction of cultivated land and Spearman’s rank correlation. It was shown that the single function index and multi-function index of cultivated land had obvious spatial difference. The trade-offs and synergies within cultivated land functions had scale effect, which would change with the changing scale.These findings might provide basis for policy-makers to implement appropriate measures for the protectection of multifunction of cultivated land at the right spatial scale, and to promote higher-level synergies of multifunction of cultivated land to realize sustainable utilization.

Key words: sustainable use of cultivated land, multifunction of cultivated land, trade-offs, synergies, scale effects, Wuhan Metropolitan Area

中图分类号:

杨凤妍子, 胡伟艳, 刘恬, 张丝雨. 耕地多功能权衡与协同关系的尺度效应——以武汉城市圈为例[J]. 浙江农业学报, 2022, 34(1): 184-195.

YANG Fengyanzi, HU Weiyan, LIU Tian, ZHANG Siyu. Scale effects of trade-offs and synergies of multifunction of cultivated land: evidence from Wuhan Metropolitan Area[J]. Acta Agriculturae Zhejiangensis, 2022, 34(1): 184-195.

图/表 6

表1 耕地多功能评价指标体系

Table 1 Multifunctional evaluation system of cultivated land in Wuhan Metropolitan Area

功能 Function	指标 Index	作用方向 Direction	计算方法 Calculation method	权重Weight
功能 Function	指标 Index	作用方向 Direction	计算方法 Calculation method	市 City	区县 County	乡镇 Township	场地 Site
生产功能 Production	地均粮食作物产量 Food production per unit area	+	粮食作物产量/土地面积 Total grain output/land area	0.100	0.083	0.056	0.107
function	地均经济作物产量 Cash crops production per unit area	+	经济作物产量/土地面积 Cash crops output/land area	0.095	0.154	0.100	0.168
	地均农业增加值 Agricultural added value per unit area	+	农业增加值/土地面积 Agricultural added value/land area	0.088	0.101	0.057	0.124
生态功能 Ecological function	地均化肥使用强度 Application intensity of chemical fertilizer per unit area	-	农用化肥施用量/土地面积 Chemical fertilizer application amount/land area	0.033	0.016	0.006	0.003
	地均固碳释氧量 Carbon fixation and oxygen release per unit area	+	(CO₂固定量+O₂释放量)/土地面积 (CO₂ absorption+O₂ release)/ land area	0.103	0.086	0.056	0.107
	农耕多样性 Diversity index of farmland ecosystem	+	$- \sum b_{i} \ln b_{i}$ b_i表示各种农作物播种面积与农作物总播种面积之比 b_i is the ratio of sown area of various crops to total sown area of crops	0.067	0.016	0.022	0.006
	水源涵养能力 Capacity of water resources protection	+	农作物冠层降雨截留量+土壤层蓄水 Crop canopy rainfall interception+ soil water storage	0.092	0.103	0.064	0.106
社会功能 Social	人均耕地面积 Per capita cultivated land area	+	耕地面积/常住人口 Cultivated land area / population	0.056	0.045	0.037	0.096
function	粮食自给率 Grain self-sufficiency rate	+	粮食产量/(常住人口×400) Total grain output/(population×400)	0.052	0.070	0.050	0.111
	农业产值比重 Proportion of agricultural output value	+	农业增加值/GDP Agricultural added value/GDP	0.105	0.090	0.061	0.138
景观功能 Landscape function	地均农业观光园个数 Number of agricultural sightseeing parks per unit area	+	农业观光园个数/土地面积 Number of agricultural sightseeing parks/land area	0.105	0.150	0.412	—
	景观集聚度指数 Landscape agglomeration index	+	用Fragstats4.2(CONTAG)测算 Calculated by Fragstats4.2(CONTAG)	0.038	0.045	0.065	—
	田块规整度 Squareness of cultivated land shape	+	用Fragstats4.2(PAFRAC)测算 Calculated by Fragstats4.2(PAFRAC)	0.066	0.051	0.014	—
	到最近农业观光园的距离 Distance to the nearest agricultural sightseeing park	+	运用ArcGIS 10.4平台的Buffer工具测算 Calculated by Buffer tool of ArcGIS 10.4 software	—	—	—	0.018
	到最近县乡级以上道路的距离 Shortest distance to the nearest road	+	运用ArcGIS 10.4平台的Buffer工具测算 Calculated by Buffer tool of ArcGIS 10.4 software	—	—	—	0.016

表1 耕地多功能评价指标体系

Table 1 Multifunctional evaluation system of cultivated land in Wuhan Metropolitan Area

功能 Function	指标 Index	作用方向 Direction	计算方法 Calculation method	权重Weight
功能 Function	指标 Index	作用方向 Direction	计算方法 Calculation method	市 City	区县 County	乡镇 Township	场地 Site
生产功能 Production	地均粮食作物产量 Food production per unit area	+	粮食作物产量/土地面积 Total grain output/land area	0.100	0.083	0.056	0.107
function	地均经济作物产量 Cash crops production per unit area	+	经济作物产量/土地面积 Cash crops output/land area	0.095	0.154	0.100	0.168
	地均农业增加值 Agricultural added value per unit area	+	农业增加值/土地面积 Agricultural added value/land area	0.088	0.101	0.057	0.124
生态功能 Ecological function	地均化肥使用强度 Application intensity of chemical fertilizer per unit area	-	农用化肥施用量/土地面积 Chemical fertilizer application amount/land area	0.033	0.016	0.006	0.003
	地均固碳释氧量 Carbon fixation and oxygen release per unit area	+	(CO₂固定量+O₂释放量)/土地面积 (CO₂ absorption+O₂ release)/ land area	0.103	0.086	0.056	0.107
	农耕多样性 Diversity index of farmland ecosystem	+	$- \sum b_{i} \ln b_{i}$ b_i表示各种农作物播种面积与农作物总播种面积之比 b_i is the ratio of sown area of various crops to total sown area of crops	0.067	0.016	0.022	0.006
	水源涵养能力 Capacity of water resources protection	+	农作物冠层降雨截留量+土壤层蓄水 Crop canopy rainfall interception+ soil water storage	0.092	0.103	0.064	0.106
社会功能 Social	人均耕地面积 Per capita cultivated land area	+	耕地面积/常住人口 Cultivated land area / population	0.056	0.045	0.037	0.096
function	粮食自给率 Grain self-sufficiency rate	+	粮食产量/(常住人口×400) Total grain output/(population×400)	0.052	0.070	0.050	0.111
	农业产值比重 Proportion of agricultural output value	+	农业增加值/GDP Agricultural added value/GDP	0.105	0.090	0.061	0.138
景观功能 Landscape function	地均农业观光园个数 Number of agricultural sightseeing parks per unit area	+	农业观光园个数/土地面积 Number of agricultural sightseeing parks/land area	0.105	0.150	0.412	—
	景观集聚度指数 Landscape agglomeration index	+	用Fragstats4.2(CONTAG)测算 Calculated by Fragstats4.2(CONTAG)	0.038	0.045	0.065	—
	田块规整度 Squareness of cultivated land shape	+	用Fragstats4.2(PAFRAC)测算 Calculated by Fragstats4.2(PAFRAC)	0.066	0.051	0.014	—
	到最近农业观光园的距离 Distance to the nearest agricultural sightseeing park	+	运用ArcGIS 10.4平台的Buffer工具测算 Calculated by Buffer tool of ArcGIS 10.4 software	—	—	—	0.018
	到最近县乡级以上道路的距离 Shortest distance to the nearest road	+	运用ArcGIS 10.4平台的Buffer工具测算 Calculated by Buffer tool of ArcGIS 10.4 software	—	—	—	0.016

图1 武汉城市圈耕地多功能权衡与协同研究的技术路线

Fig.1 Technical roadmap of trade-offs and synergies of multifunction of cultivated land

图2 武汉城市圈耕地单项功能的多尺度空间分布格局第1行至第4行分别展示耕地的生产功能、生态功能、社会功能、景观功能,第1列至第4列分别展示市、区县、乡镇、场地尺度的结果。

Fig.2 Multiscale spatial distribution pattern of single function of cultivated land in Wuhan Metropolitan Area Row 1 to row 4 showed the production function, ecological function, social function and landscape function of cultivated land, respectively; while column 1 to column 4 showed city scale, county scale, township scale and site scale, respectively.

图3 武汉城市圈耕地多功能的多尺度空间分布格局上、下行分别展示加权综合指数法和辛普森倒数指数法测度的耕地多功能程度,第1列至第4列分别展示市、区县、乡镇、场地尺度的结果。

Fig.3 Multiscale spatial distribution pattern of multifunction of cultivated land in Wuhan Metropolitan Area The upper and lower row showed the multifunctional degree of cultivated land measured by the weighted composite index method and the Simpson reciprocal index method, respectively. Columns 1 to 4 showed the results of the city scale, county scale, township scale and site scale, respectively.

图4 不同尺度下武汉城市圈耕地多功能的权衡与协同关系第1列至第4列分别展示市、区县、乡镇、管理场地尺度的结果。*和**分别表示相关性通过P<0.05和P<0.01水平的显著性检验。

Fig.4 Trade-offs and synergies of multifunction of cultivated land in Wuhan Metropolitan Area at different scales Columns 1 to 4 showed the results of the city scale, county scale, township scale and site scale, respectively. *, and ** indicated significant level at P<0.05 and P<0.01, respectively.

图5 武汉城市圈耕地多功能权衡与协同关系的尺度效应图中仅显示通过显著性检验的结果。

Fig.5 Scale effect of trade-offs and synergies of multifunction of cultivated land in Wuhan Metropolitan Area. Only significant (P<0.05) results were shown in the above figure.

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耕地多功能权衡与协同关系的尺度效应——以武汉城市圈为例

Scale effects of trade-offs and synergies of multifunction of cultivated land: evidence from Wuhan Metropolitan Area

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