ZHAO Peipei,GUO Xiaolong,GU Yunzhi,et al.Dynamic Evaluation of Ecosystem Service Value in Aksu City Based on Land Use Change[J].Northern Horticulture,2020,44(18):95-105.[doi:10.11937/bfyy.20194299]
基于土地利用变化的阿克苏市生态系统服务价值动态评估
- Title:
- Dynamic Evaluation of Ecosystem Service Value in Aksu City Based on Land Use Change
- 文献标志码:
- A
- 摘要:
- 清楚认知土地利用变化引起的生态系统服务价值（ESV）动态变化特征，可为进一步优化区域土地利用结构和实现区域可持续发展提供科学依据。以阿克苏市为研究区，通过解译Landsat TM/OLI影像，获取土地利用数据，引用洛伦兹曲线-基尼系数与土地利用变化矩阵分析2000—2016年土地利用变化特征，利用当量因子法对不同地类的ESV进行评估，并运用敏感性指数及服务价值流向模型分析土地利用变化对ESV的影响。结果表明：2000—2016年，各地类基尼系数均未超过分配差距的“警戒线（0.4）”，土地空间分布格局较为均衡；林地和草地呈正向变化，未利用地呈负向变化。阿克苏市总ESV呈增加趋势；各地类ESV贡献率表现出草地（27.98%）最大，耕地（3.40%）最小的特点；地均ESV空间分异明显，高值区域一直是阿克苏市属，良种繁育场和实验林场一直是低值区域。未利用地和林地ESV系数变化对于阿克苏市ESV具有缩小效应，其它具有放大效应；ESV的增值主要依靠水域向草地的转变，损失主要来自于未利用地和草地。ESV动态结果显示阿克苏市土地利用结构逐步合理化，今后须进一步保护现有耕地和草地，增加林地和水域面积，以推动区域生态文明建设进程。
- Abstract:
- A clear recognition of the dynamic changes in ecosystem service value (ESV) caused by land use change can provide a scientific basis for further optimizing regional land use structure and achieving regional sustainable development.Taking Aksu city as the research area,land use data were obtained by interpreting Landsat TM/OLI images,land use change characteristics in Aksu city were analyzed by Quote Lorenz Curve-Gini Coefficient and Land use transfer matrix from 2000 to 2016,ecosystem service value (ESV) of different land types was evaluated by Equivalent factor method,and the Impact of Land Use Change on ESV was analyzed by Sensitivity index and Service Value Flow Model.The results show that from 2000 to 2016,the Gini coefficients of land use classes did not exceed the ‘warning line (0.4)’ of the distribution gap,and the spatial distribution pattern of land was relatively balanced.In terms of land use structure change,forestland and grassland were positively changing,and unutilized land was negatively changing.The total ESV of Aksu city showed an increasing trend,and the contribution rate of ESV in various regions showed a feature that grassland (27.98%) was the largest value and cultivated land (3.40%) was the smallest value.The spatial differentiation of mean ESV was obvious,the high-value of mean ESV area has always been the area is Aksu municipality,and the Seed cultivation farm and Experimental woods field have always been low-value areas.The change of ESV coefficients of unutilized land and forestland value has a shrinking effect on ESV of Aksu city,while others have a magnifying effect.The value added of ESV mainly depends on the conversion of waters to grassland,and the losses mainly come from unutilized land and grassland.The dynamic results of ESV show that the land use structure of Aksu city is gradually rationalized.In the future,it is necessary to further protect the existing cultivated land and grassland,increase the forest land and water area,so as to promote the process of regional ecological civilization construction.
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备注/Memo
第一作者简介：赵珮珮(1994-)，女，甘肃临夏人，硕士研究生，研究方向为土地资源评价。E-mail：1083383944@qq.com．责任作者：曹月娥(1976-)，女，新疆昌吉人，博士，副教授，现主要从事国土整治与3S技术应用等研究工作。E-mail：xjdxcye@sina.com．基金项目：国家自然科学基金青年科学基金资助项目（41601572）。收稿日期：2019-11-12