Temporal variations of ecological security with soil and water loss stress in black soil region of northeast China: a case study on Baiquan County

doi:10.1186/2193-1801-2-S1-S6

	Temporal variations of ecological security with soil and water loss stress in black soil region of northeast China: a case study on Baiquan County
	Sun,Liying 1; Liu,Zhenju 2; Zheng,Mingguo 1; Cai,Qiangguo 1; Fang,Haiyan 1
刊名	SpringerPlus
	2013-12-11
卷号	2 期号:Suppl 1
关键词	temporal variation black soil region ecological security soil and water loss
ISSN号	2193-1801
DOI	10.1186/2193-1801-2-S1-S6
通讯作者	Cai,Qiangguo(caiqg@igsnrr.ac.cn)
英文摘要	AbstractThe deterioration of ecological situation with serious soil and water loss in black soil region of northeast China has attracted more attention due to its significant role on food security of China. To investigate the temporal characteristics of ecological status in typical black soil areas, Baiquan County is selected. Based on the model of Press-Status-Response (P-S-R), indicators are established and the ecological security situations with soil and water loss of Baiquan County are evaluated for the years of 1979, 1990, 2000 and 2005. The results show that the ecological insecurity indicator changes from 0.701 to 0.435 from 1979 to 2005, with a decrease of 37.9% for Baiquan County. And the contributions of physical and human factors to the temporal variations of the ecological security are discussed in detail. Moreover, several problems are recognized to be the potential threats to the ecological security in Baiquan county, including reduction of the effective thickness, excessive application of the fertilizer and low efficiency of the agricultural irrigation system. It is found that effective soil and water loss control actions have made great contribution to the improvement of the ecological security in Baiquan county. All these results and discussions are very helpful for the further investigation on the quantitative relationship between soil and water loss and ecological security in black soil region of northeast China.
语种	英语
出版者	Springer International Publishing
WOS记录号	BMC:10.1186/2193-1801-2-S1-S6
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/67826]
专题	中国科学院地理科学与资源研究所
通讯作者	Cai,Qiangguo
作者单位	1.Institute of Geographical Sciences and Resources Research, Chinese Academy of Sciences; Key Laboratory of Water Cycle and Related Surface Processes 2.Guangxi Hydraulic Research Institute
推荐引用方式 GB/T 7714	Sun,Liying,Liu,Zhenju,Zheng,Mingguo,et al. Temporal variations of ecological security with soil and water loss stress in black soil region of northeast China: a case study on Baiquan County[J]. SpringerPlus,2013,2(Suppl 1).
APA	Sun,Liying,Liu,Zhenju,Zheng,Mingguo,Cai,Qiangguo,&Fang,Haiyan.(2013).Temporal variations of ecological security with soil and water loss stress in black soil region of northeast China: a case study on Baiquan County.SpringerPlus,2(Suppl 1).
MLA	Sun,Liying,et al."Temporal variations of ecological security with soil and water loss stress in black soil region of northeast China: a case study on Baiquan County".SpringerPlus 2.Suppl 1(2013).