干旱区生态环境知识资源中心(Arid): 甘肃省潜在生态承载力估算

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	甘肃省潜在生态承载力估算
其他题名	Estimating potential ecological carrying capacity in Gansu Province
	潘竟虎; 冯娅娅
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2017
卷号	36 期号:3 页码:800-808
中文摘要	甘肃省是我国重要的生态屏障,研究其潜在植被生产力的空间格局是生态环境保护和建设的基础性工作。本文在对甘肃省气候要素进行空间化的基础上,利用分类回归树模型计算甘肃省的潜在归一化植被指数(NDVI),采用光能利用率模型(CASA)和潜在NDVI数据对甘肃省的潜在植被净初级生产力(NPP)进行模拟,在此基础上,利用改进的生态足迹法估算了全省14个市州的潜在人均生态承载力。结果表明,甘肃省潜在NDVI和潜在NPP呈现从东南向西北递减的趋势,全省潜在NDVI和潜在NPP的平均值分别为0.277和272.315 g C·m~(-2)。各市州的潜在人均生态承载力呈现南北两头大、中间小的分布格局,甘南州的潜在人均生态承载力最大,为11.616 hm~2·人~(-1),嘉峪关市的潜在人均生态承载力最小,仅为0.228 hm~2·人~(-1)。
英文摘要	Gansu Province is an important ecological barrier in northwest China. The study of spatial pattern of potential vegetation productivity has become basic work toward the ecological environment rehabilitation and reconstruction in arid and semi-arid areas of northwest China. Data from some meteorological stations were used to build climate models,and regression trees were applied for estimating potential NDVI based on climate variables and training data of actual NDVI. Then,potential NPP of Gansu Province was simulated by using CASA model and potential NDVI data. On this basis,potential ecological carrying capacity of 14 municipalities in Gansu Province was estimated using the improved ecological footprint approach. Results indicated that potential NDVI and potential NPP decreased from southeast to northwest in Gansu Province. The average potential NDVI and potential NPP of Gansu Province were 0.277 and 272.315 g C·m~(-2), respectively. The potential ecological carrying capacity per capita(PECC)of the 14 municipalities in Gansu Province presented a distribution pattern ofbig at both ends(south and north)but small in the middle. Gannan Prefecture had the largest PECC,which was 11.616 hm~2 per capita,while Jiayuguan City had the least PECC,with only 0.228 hm~2 per capita.
中文关键词	生态承载力 ; 潜在归一化植被指数 ; 潜在NPP ; 生态足迹 ; 甘肃
英文关键词	ecological carrying capacity potential NDVI potential NPP ecological footprint Gansu Province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5939962
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236554
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	潘竟虎,冯娅娅. 甘肃省潜在生态承载力估算[J]. 西北师范大学,2017,36(3):800-808.
APA	潘竟虎,&冯娅娅.(2017).甘肃省潜在生态承载力估算.生态学杂志,36(3),800-808.
MLA	潘竟虎,et al."甘肃省潜在生态承载力估算".生态学杂志 36.3(2017):800-808.