干旱区生态环境知识资源中心(Arid): 基于降水量与土壤类型的北方农牧交错区土地利用/覆被格局及变化分析以科尔沁左翼后旗为例

Arid

	基于降水量与土壤类型的北方农牧交错区土地利用/覆被格局及变化分析以科尔沁左翼后旗为例
其他题名	Analysis of land use/cover pattern and its changes in the agro-pastoral ecotone based on the precipitation and soil types: A case study of Horqin Left Rear Banner
	周建 1; 张凤荣 2; 徐艳 2; 高阳 2; 张佰林 3; 李超 2
来源期刊	地理研究
ISSN	1000-0585
出版年	2017
卷号	36 期号:7 页码:1210-1222
中文摘要	基于降水、土壤、遥感与农户调研数据,利用遥感解译、面积加权重心、景观格局等方法,探讨科尔沁左翼后旗的土地利用/覆被格局及其变化。研究表明:土地利用/覆被空间分异明显,草地是最适宜的土地利用/覆被类型。相对优质的土壤被优先用于农牧业,符合当地半农半牧的生产方式;但47.70%的风沙土耕地说明土地已被过度开发利用为耕地。科尔沁左翼后旗土地利用/覆被变化剧烈,且以耕地与林地、草地的转换为主,阻止其转换是生态恢复的关键;变化耕地的土壤类型以风沙土和草甸土为主,风沙土变化耕地应当逐步退耕,草甸土变化耕地应注意地力的保持。基于研究结果,提出退耕还林还草在北方农牧交错区的实施应综合考虑对种植业与畜牧业的影响。
英文摘要	The northern agro-pastoral ecotone is a fragile region in ecology and environment in China and land sandy desertification is the prominent eco-environment problem in this region. It is significant to explore the characteristics of land use/cover pattern and soil properties of changed land use/cover for ecological restoration in the agro- pastoral ecotone of northern China. By taking Horqin Left Rear Banner located in Inner Mongolia as a case study and using remote sensing data, precipitation data and soil data, land use/cover pattern and its changes were studied with methods of remote sensing imagery interpretation, area weighted gravity center model, and landscape indexes. Results were obtained as follows: (1)Land use/cover pattern had an obvious spatial differentiation and grassland was the optimum land use/cover type in Horqin Left Rear Banner. (2)Soils with high soil fertility and rich water resources were used as cultivated land and grassland in the first place. This was in accordance with the agriculture and animal husbandry production mode in the agro- pastoral ecotone of northern China; sandy soil is low in soil fertility, poor in water retention and has no soil structure; however, 47.70% of sandy soil was used as cultivated land, indicating that land was over reclaimed into cultivated land in the banner. (3)Land use/cover change was dramatic in this region, and the transformation between cultivated land and forest land/grassland was dominant in land use/cover change. Thus, it was crucial to prevent the transformation between cultivated land and forest land/grassland for ecological restoration in the agro- pastoral ecotone of northern China. The converted cultivated land was mostly distributed on sandy soil and meadow soil. Thus, farming fields converted from forests and grasslands on sandy soil must be stopped for the sake of ecological restoration. The converted cultivated land distributed on meadow soil should be fertilized in land use. Based on the results above, the implementation of "Grain for Green" policy has an effect on planting industry and animal husbandry in the agropastoral ecotone of northern China. To get better ecological restoration effects, influences in two ways should be taken into consideration simultaneously in the "Grain for Green" policy implementation in the study region. This study can make references for ecological restoration in the agro-pastoral ecotone of northern China.
中文关键词	北方农牧交错区 ; 土地利用/覆被 ; 降水量 ; 土壤类型 ; 科尔沁左翼后旗
英文关键词	agro- pastoral ecotone in northern China land use/cover precipitation soil types Horqin Left Rear Banner
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6029365
来源机构	陕西师范大学 ; 中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235764
作者单位	1.陕西师范大学西北国土资源研究中心, 西安, 陕西 710119, 中国; 2.中国农业大学资源与环境学院, 北京 100193, 中国; 3.天津工业大学管理学院, 天津 300387, 中国
推荐引用方式 GB/T 7714	周建,张凤荣,徐艳,等. 基于降水量与土壤类型的北方农牧交错区土地利用/覆被格局及变化分析以科尔沁左翼后旗为例[J]. 陕西师范大学, 中国农业大学,2017,36(7):1210-1222.
APA	周建,张凤荣,徐艳,高阳,张佰林,&李超.(2017).基于降水量与土壤类型的北方农牧交错区土地利用/覆被格局及变化分析以科尔沁左翼后旗为例.地理研究,36(7),1210-1222.
MLA	周建,et al."基于降水量与土壤类型的北方农牧交错区土地利用/覆被格局及变化分析以科尔沁左翼后旗为例".地理研究 36.7(2017):1210-1222.