干旱区生态环境知识资源中心(Arid): 西北干旱区不稳定耕地概念与分类研究--以新疆昌吉州为例

Arid

	西北干旱区不稳定耕地概念与分类研究--以新疆昌吉州为例
其他题名	Concept and classification of unstable farmland in arid area of Northwest China: A case study of Changji Prefecture, Xinjiang
	张红旗; 李达净
来源期刊	地理研究
ISSN	1000-0585
出版年	2021
卷号	40 期号:3
中文摘要	厘清西北干旱区不稳定耕地的资源清单对于维持区域生态平衡至关重要。当前,全国对不稳定耕地的定义和分类比较笼统,难以突出西北干旱区不稳定耕地的特征。本文阐明了西北干旱区不稳定耕地的概念,并根据不稳定因素构建了分类体系。同时以昌吉州为例,分析不稳定耕地的数量、质量与空间分布。结果表明:①昌吉州不稳定耕地面积为14.56万hm2,占耕地总面积的22.37%。生态不稳定型、生产不稳定型、混合不稳定型和社会经济不稳定型分别占不稳定耕地总面积的36.54%、34.03%、17.94%和11.49%。②昌吉州不稳定耕地以低等地为主,四至六等地合计占不稳定耕地总面积的79.96%。研究结果可为西北干旱区不稳定耕地的深入理解提供参考,同时为案例地区耕地资源的有效管理提供科技支撑。
英文摘要	It is essential to clarify the resource list of unstable cultivated land for maintaining ecological balance, ensuring regional food security and promoting the sustainable development of economy and society in the arid areas of Northwest China. At present, the definition and classification of unstable cultivated land in China is relatively general, and the resource endowment of different regions is quite different, so it is difficult to highlight the characteristics of unstable cultivated land in the arid areas of Northwest China with a national standard classification system. In this paper, the connotation and concept of the unstable cultivated land in the arid areas of Northwest China were expounded, and the classification system was constructed according to the unstable factors. Taking Changji Prefecture as a typical case, this paper analyzed the quantity, quality and spatial distribution of unstable cultivated land. The main results are as follows. (1) The definition of unstable cultivated land in the arid areas of Northwest China is as follows: limited by ecological factors (desertification, soil salinization, etc.), or production factors (water, soil, etc.), or socio- economic factors (location, farmland infrastructure, etc.), it is difficult to stabilize production, and continuous cultivation will threaten ecological security of cultivated land ecosystem and surrounding environment, and there is uncertainty in the follow- up land use types. Unstable cultivated land can be divided into four types: productive unstable type, ecological unstable type, socio- economic unstable type and mixed unstable type. (2) The area of unstable cultivated land was 14.56 ten thousand hm2 in Changji Prefecture, accounting for 22.37% of the total cultivated land area. Ecological unstable type, productive unstable type, mixed unstable type, and socio-economic unstable type accounted for 36.54%, 34.03%, 17.94% and 11.49% of the total area of unstable cultivated land, respectively. (3) The unstable cultivated land was mainly at low- grade level in Changji Prefecture, and the fourth to sixth grade cultivated land accounted for 79.96% of the total area of unstable cultivated land. Our results are of great significance for the deep understanding of the unstable cultivated land in the arid areas of Northwest China, and provide scientific support for the effective management of cultivated land resources in the case area.
中文关键词	不稳定耕地 ; 概念 ; 分类体系 ; 西北干旱区
英文关键词	unstable farmland concept classification system arid areas of Northwest China
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6933410
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354213
作者单位	张红旗, 中国科学院地理科学与资源研究所, 中国科学院陆地表层格局与模拟重点实验室, 北京 100101, 中国. 李达净, 中国科学院地理科学与资源研究所;;中国科学院大学, 中国科学院陆地表层格局与模拟重点实验室;;, ;;, 北京;;北京 100101;;100049, 中国.
推荐引用方式 GB/T 7714	张红旗,李达净. 西北干旱区不稳定耕地概念与分类研究--以新疆昌吉州为例[J],2021,40(3).
APA	张红旗,&李达净.(2021).西北干旱区不稳定耕地概念与分类研究--以新疆昌吉州为例.地理研究,40(3).
MLA	张红旗,et al."西北干旱区不稳定耕地概念与分类研究--以新疆昌吉州为例".地理研究 40.3(2021).