干旱区生态环境知识资源中心(Arid): 广西石漠化地区水土保持效应评价指标体系研究

Arid

	广西石漠化地区水土保持效应评价指标体系研究
其他题名	Research on evaluation index system of soil and water conservation effect of rocky desertification region in Guangxi of southern China
	李昂; 王云琦; 张会兰; 王彬; 黎宏祥
来源期刊	北京林业大学学报
ISSN	1000-1522
出版年	2016
卷号	38 期号:11 页码:67-78
中文摘要	石漠化造成水土资源的损失和破坏已经成为限制广西地区经济发展的严重问题,建立一套广西特有的评价指标体系可以科学、合理地评价广西地区的水土保持效应,对广西地区水土保持工作的开展具有重要意义。结合广西地区基岩裸露、成土缓慢、植被生长困难等石漠化特点,依据《水土保持综合治理效应计算方法》(GB/T 15774-2008),通过广西水利厅提供的水文站资料、县志、年鉴等历史资料集成、野外小流域采样调查、原位监测等方法,总结出涵盖包含社会、生态、经济3大方面在内的9类指标构成的初选指标体系。通过主成分分析方法,对指标进行降维,并结合相关分析、通径分析、敏感性分析的结果,分析各主成分中指标主要的作用途径,对指标的敏感性进行检验,筛除冗余指标,使得到的指标体系涵盖内容较为全面,指标信息重叠较少,代表性较强,最终形成包涵8个生态效应指标、7个经济效应指标、1个社会效应指标的水土保持效应指标体系。其中,生态效应指标对石漠化地区水土保持影响较大的前3位分别为林草措施面积(11.21%)、蓄水措施有效面积(11.10%)、有效土层厚度(6.28%),经济效应指标影响较大的前3位分别为林果产品产量(15.11%)、粮食生产量(14.95%)、第三产业总产值(14.74%),社会效应指标为负向指标,说明城镇化水平越高,人类活动对生态环境破坏越严重,越难以治理。本研究最终构建的指标体系为深入讨论生态效应补偿机制提供了必要的技术支持,为优化广西石漠化地区水土保持工作配置提供了一定的科学依据。
英文摘要	The loss and damage of soil and water resources caused by rocky desertification has become a serious problem of limiting the economic development in Guangxi region of southern China. To establish a set of evaluation index system of Guangxi, which can scientifically and reasonably evaluate the effect of soil and water conservation in this region, has important significance for the development of soil and water conservation work in Guangxi area.According to the unique characteristics of rock desertification such as exposed bedrock, slowly grown soil and difficult vegetation growing in Guangxi region, we summarized a primary index system which was composed of 9 categories, including ecological effect, economic effect and social effect based on "Soil and Water Conservation Benefit Calculation Method" (GB/T 15774-2008), integration of hydrological station data, county, yearbook and other historical data provided by Guangxi Water Resources Department. Dimension of index was reduced by principal component analysis, then we analyzed the major pathway of each index in principal components combined with the results of correlation analysis, path analysis and sensitivity analysis. Sensitivity of indices was tested and redundant indices were deleted in order to get a dimension reduction index system, which has a strong representation covering more comprehensive content and less overlap index information. Finally, the index system of soil and water conservation effect was formed by 8 ecological effect indices, 7 economic effect indices and 1 social effect index. The top three indices of ecological effects on soil and water conservation in rocky desertification region are area of forest and grass measures (11.21%), effective area of water storage measures (11.10%) and effective thickness of soil layer (6.28%), respectively. The top three indices of economic effects are the yield of fruit products (15.11%), grain production (14.95%) and total output value of the third industry (14.74%), respectively. However, the urbanization level in social effect index is a negative index, which shows that the higher level the urbanization is, the more serious the impact of human activities on degree of rocky desertification is, and the more difficult to control the soil and water loss. The final index system of this study provides a necessary technical support for further discussion on the compensation mechanism of ecological effects, and also gives a scientific basis for optimizing the water and soil conservation work in Guangxi rocky desertification region.
中文关键词	水土保持效应 ; 指标体系 ; 敏感性分析 ; 主成分分析 ; 石漠化地区
英文关键词	soil and water conservation effect index system sensitivity analysis principal component analysis rocky desertification region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5854599
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233910
作者单位	北京林业大学水土保持学院
推荐引用方式 GB/T 7714	李昂,王云琦,张会兰,等. 广西石漠化地区水土保持效应评价指标体系研究[J]. 北京林业大学,2016,38(11):67-78.
APA	李昂,王云琦,张会兰,王彬,&黎宏祥.(2016).广西石漠化地区水土保持效应评价指标体系研究.北京林业大学学报,38(11),67-78.
MLA	李昂,et al."广西石漠化地区水土保持效应评价指标体系研究".北京林业大学学报 38.11(2016):67-78.