农村地类及其地表热环境演变——以徐州典型农村为例

生态学杂志

农村地类及其地表热环境演变——以徐州典型农村为例

夏嘉南^1,2,金慧霞^1,2,李效顺^1,2,3*

(¹中国矿业大学中国资源型城市转型发展与乡村振兴研究中心，江苏徐州 221116；²中国矿业大学江苏省资源环境信息工程重点实验室，江苏徐州 221116；³南京农业大学中国土地问题研究中心，南京 210095)

出版日期:2019-12-10 发布日期:2019-12-10

Evolution of land-use and land-cover change and surface thermal environment in rural area: A case of the typical rural areas in Xuzhou.

XIA Jia-nan^1,2, JING Hui-xia^1,2, LI Xiao-shun^1,2,3*

(¹Research Center for Transition Development and Rural Revitalization of Resourcebased Cities in China, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China; ²Jiangsu Key Laboratory of Resources and Environmental Information Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China; ³China Center for Land Policy, Nanjing Agricultural University, Nanjing 210095, China).

Online:2019-12-10 Published:2019-12-10

摘要/Abstract

摘要： 伴随着工业化、城镇化加速推进，农村建设用地逐年挤压生态空间，改变原地表热环境，生态安全问题日益凸显。本文以徐州市S271省道、S252省道、连霍高速与S323省道所围农村地区为例，在揭示农村地类与地表温度时空规律的基础上，通过构建地类热效应预测函数，阐释研究区地类及其地表热环境演变特征。结果表明：农村地表热环境特征中，研究区地类地表温度动态差异明显，当邳州市历史气温<10 ℃时，耕地地表温度最高，居民点最低；10~24 ℃时，各类用地平均地表温度值差异较小(<1 ℃)；>24 ℃时，居民点平均地表温度最高，林地最低；农村土地利用演变特征中，研究区地类演变主要表现为居民点和耕地挤压林地空间，且演变主要集中于交通用地临近地块；从农村空间演变下地表热环境演化特征来看，以居民点扩张为主因的地类演变明显加强了研究区温度变化敏感性与季节性变化幅度。增大林地为主的地表植被覆盖比例将有效削弱农村空间演变造成的地表热环境变化。

关键词: 河北省, 生态环境, 经济发展, 演化机理, 耦合度模型

Abstract: With the rapid industrialization and urbanization, rural construction land has gradually occupied the ecological space and changed the thermal environment of land surface. Ecological security has become an increasingly important problem. Taking the rural area which is surrounded by S271 Provincial Highway, S252 Provincial Highway, Lianhuo Highway and S323 Provincial Highway of Xuzhou as an example, we investigated the temporal and spatial changes of temperature of rural land surface, and elucidated the evolving features of LUCC (land-use and land-cover change) and the thermal environment of land surface by constructing prediction functions of thermal effect with land use/cover. There were obvious dynamic differences in land surface temperature in the study area. When the historical temperature of Pizhou was below 10 ℃, surface temperature of cultivated land reached the highest and the residential area was the lowest. When the temperature was between 10 ℃ and 24 ℃, there was subtle difference of surface temperature among all land use types, which was less than 1 ℃. When the temperature was over 24 ℃, the surface temperature of the residential area was the highest while forest land was the lowest. In reference to the evolving features of rural land use, it mainly manifests that the forest land is occupied by both residential area and cultivated land. The evolution is mainly concentrated on the adjacent land plots of the traffic land. In reference to the evolution features of the surface thermal environment under the evolution of rural space, land evolution which mainly attributes to the expansion of residential areas has significantly enhanced the sensitivity and seasonal variation of temperature change in the study area. The thermal environment variation of land surface, which is caused by rural spatial evolution, will be effectively weakened by increasing the proportion of surface vegetation cover of forest land.

Key words: ecological environment, economic development, evolution mechanism, Hebei Province., coupling degree model

夏嘉南,金慧霞,李效顺. 农村地类及其地表热环境演变——以徐州典型农村为例[J]. 生态学杂志.

XIA Jia-nan, JING Hui-xia, LI Xiao-shun. Evolution of land-use and land-cover change and surface thermal environment in rural area: A case of the typical rural areas in Xuzhou.[J]. cje.

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