干旱区生态环境知识资源中心(Arid): 喀斯特峰丛洼地退耕还林还草工程的植被土壤耦合协调度模型

Arid

	喀斯特峰丛洼地退耕还林还草工程的植被土壤耦合协调度模型
其他题名	Models of vegetation and soil coupling coordinative degree in grain for green project in depressions between karst hills
	彭晚霞; 宋同清; 曾馥平; 王克林; 杜虎; 鹿士杨
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2011
卷号	27 期号:9 页码:305-310
中文摘要	植物和土壤的耦合协调关系是生态恢复、退耕还林还草工程顺利实施的关键。该文基于典型喀斯特峰丛洼地7种代表性退耕还林还草模式植被土壤的全面调查和取样分析，建立9个植被因子和15个土壤因子的2级层次指标体系，采用层次分析法确定各因子的权重，构建了7种模式的植被土壤耦合度和耦合协调度模型。结果表明：不同退耕还林还草模式的耦合度和耦合协调度并不一一对应，植被与土壤的综合指数在全体模式中的位置也并不完全一致，退耕种植任豆+桂牧1号的植被效应和退耕种植香椿的土壤改良作用最好。退耕5年后各模式的植被土壤耦合协调状况还不十分理想，除香椿和撂荒处于中级协调发展时期外，其他退耕模式均还处于失调衰退和过度发展时期，耦合协调度模型只有桂牧1号和撂荒处于植被土壤同步型。喀斯特峰丛洼地实施退耕还林还草工程时应同步提高植物生长抚育和土壤管理水平。
英文摘要	Coupling coordinative relationship of vegetation and soil is the key for ecological restoration and for implementing grain for green project.Based on the investigation and analysis of vegetation and soil in seven grain for green patterns in depressions between karst hills,a two-level target system of nine vegetation factors and fifteen soil factors was conducted,and the weight of factors was determined by step weight analysis and models of vegetation and soil coupling degree and coupling coordinative degree were constructed.The results showed that the relationships of coupling degree and coupling coordinative degree of grain for green patterns were not one-to-one correspondence in the region,and the integrative indexes of vegetation in the patterns didnt quite fit with those of soil.The vegetation effects of Zenia insignis+Guimu No.1 Forage pattern and the soil improvement effects of Toona sinensis pattern were best in these patterns.The status of vegetation and soil coupling coordination in the patterns after 5 yearswas still not ideal,as except for patterns of Toona sinensis and deserting cultivation were in the stage of middle level coordinative development,and other patterns were in the stages of deterioration caused by disorders or overdevelopment.Only the models of vegetation and soil coupling coordinative degree for patterns of Guimu No.1 Forage and deserting cultivation were in synchronization.Therefore,improvement of vegetation growth and soil management should be done during the application of grain for green project in depressions between karst hills.
中文关键词	植被 ; 土壤 ; 耦合 ; 模型 ; 退耕还林还草 ; 喀斯特峰丛洼地
英文关键词	vegetation soils couplings models grain for green depressions between karst hills
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:4331259
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226807
作者单位	中国科学院亚热带农业生态研究所, 中国科学院亚热带农业生态过程重点实验室, 长沙, 湖南 410125, 中国
推荐引用方式 GB/T 7714	彭晚霞,宋同清,曾馥平,等. 喀斯特峰丛洼地退耕还林还草工程的植被土壤耦合协调度模型[J],2011,27(9):305-310.
APA	彭晚霞,宋同清,曾馥平,王克林,杜虎,&鹿士杨.(2011).喀斯特峰丛洼地退耕还林还草工程的植被土壤耦合协调度模型.农业工程学报,27(9),305-310.
MLA	彭晚霞,et al."喀斯特峰丛洼地退耕还林还草工程的植被土壤耦合协调度模型".农业工程学报 27.9(2011):305-310.