干旱区生态环境知识资源中心(Arid): 河西走廊山地-荒漠-绿洲复合生态系统耦合模式及耦合宏观经济价值分析--以肃南山地-张掖北山地区荒漠-临泽绿洲为例

Arid

	河西走廊山地-荒漠-绿洲复合生态系统耦合模式及耦合宏观经济价值分析--以肃南山地-张掖北山地区荒漠-临泽绿洲为例
其他题名	Coupling patterns of the meta-ecosystem of mountain, desert and oasis and its emdollars analysis in the Hexi Corridor, Gansu, China
	林慧龙; 肖金玉; 侯扶江
来源期刊	生态学报
ISSN	1000-0933
出版年	2004
卷号	24 期号:5 页码:965-971
中文摘要	应用合作对策理论提出河西走廊山地-荒漠-绿洲复合生态系统的4个可行的耦合模式,在现有能值投入水平和科学管理力度下,4种耦合模式分别增加肃南山地-张掖北山荒漠-临泽绿洲动物生产系统和绿洲植物生产系统的宏观经济价值3.67、4.02、1.03和4.6倍.用能值概念和度量标准,以耦合后新增宏观经济价值为对策论中合作对策的特征函数,筛选出模式Ⅳ是4种耦合模式中的最佳策略组合即最优的耦合模式.该模式下,家畜对高山草地的压力减小,退化的山地子系统得以恢复,脆弱的荒漠子系统得到保护,绿洲种植业系统也因为家畜的加入、系统多样性提高,系统稳定性加强.研究方法避免了传统的纯货币评价分析方法对耦合产出所含环境资源评价的缺失,使得对耦合效应的评价值较为客观真实.
英文摘要	The coupling of agro-ecosystems was initially put forward at the end of the 80s. In the middle of the 90s, Ren Ji-zhou and others systematically described the theory of system coupling which showed that system coupling is two or more potentially coupled systems, under artificial control of input and output of energy flow, material flow and information flow in larger systems, coupled to form new superior structure -function bodies. The general function of coupling between systems is to consummate the structure of the ecosystem, to release production potential and magnify ecological and economic value of the system. Hereafter, domestic and overseas scholars carried out detailed extensive research on the coupling model and coupling value for agro-ecosystems, where case research was mainly directed to the typical MOD (mountain-oasis-desert) coupling system in an inland arid area. The premise of reciprocal coupling between ecosystems is the reduction in the accumulation of free energy to stabilize the coupling system. Coupling patterns vary from each other. For a sub-ecosystem, the pattern can be regarded as a response strategy. Therefore, the optimal coupling pattern can be screened out by analyzing the economic and ecological value of possible system coupling patterns established by the use of cooperating game theory. There are energy, material, information, and monetary flows between sub-systems and between these and the external environment. However, attention was purely directed to economic value, so different energy -sources couldn’t be compared. Energy,material and monetary flows couldn’t be measured together, so only economic value was analysed. An integrated coupling value couldn’t be analysed. This research, by using cooperating game theory and emergy analysis theory, measured and compared emergy varying in origin and property using the same measurement unit in the agro-ecosystem. The energy, material, and monetary flows were unified through emergy analysis. Finally, the optimal coupling pattern was screened out after integrated analysis of economic, ecological, and social value. Actually, the grassland agro-ecosystem in the Hexi corridor is a meta-ecosystem composed of mountain, oasis and desert sub-ecosystems. The desert sub-ecosystem plays the role of matrix and ecological barrier for the whole meta-ecosystem. The mountain sub-ecosystem is the water conservation area and main producing area of livestock products for the meta-ecosystem. The oasis sub-ecosystem is zonal with high productivity and ability to exchange material, energy and information with the, external environment. The oasis sub-ecosystem plays a key role in coupling because it is the center of energy convergence and switch of the whole meta-ecosystem. The three sub-systems have distinct time and space differences in forage grass mid potential energy, which provides opportunity for coupling in time, space, quantity, order, and structure of the three sub-systems. Great production potential is released by the system coupling effect resulting from the oasis sub-system,as core, driving the mountain and desert sub-systems. The following uses the Sunan Mountain. desert in the northern area of Zhangye-Linze Oasis as an example, to describe the coupling patterns of the MOD meta-ecosystem. Solar transformations for the main types of energy and commodities are derived from previous studies,using those which are appropriate for regional analysis. sing cooperating game theory and considering the production practice of the MOD coupling ecosystem, the coupling pattern set of the MOD coupling ecosystem can be described as D= {Z_1,Z_2,Z_3,Z_4},in which coupling pattern I: Z_1 = (x_(11),x_(21),x_(31)) = {oasis sub-system providing forage to mountain and desert sub-systems} coupling pattern II: Z_2=(x_(12),x_(22),x_(32)) = {commodity sheep in mountain and desert sub-systems are transferred to oasis sub-systems to fatten} 1 coupling pattern III: Z_3 = (X_(13),x_(23)) = {breeding base in oasis providing lambs to mountain sub-system to make best use of the forage resource in summer}; and coupling pattern IV: Z_4= (x_(14),x_(24),x_(33))= {integration of coupling patterns I to III with optimized structure}.The optimal coupling pattern can be decided upon after conducting dynamic simulations with some decision factors for the meta-ecosystem, such as grassland degradation, water and soil loss, consumption of electricity, organic fertility, etc, and predicting the change in emdollars for the MOD meta-ecosystem with different coupling patterns, to provide a theoretical basis to take advantage of various resources effectively, to establish a sustainable grassland agro-ecosystem, and to increase agricultural productivity. The results of the established dynamic linear programming model were- At the level of available emergy devotion and the strength of management in existence, application of the new increase-in-emdollars’analysis for the four coupling patterns described for the meta-ecosystem of the Sunan Mountain,Zhangye Beishan Desert and Linze Oasis in the Hexi corridor ,Gnnsu , China,resulted in the emdoltars for the 4 coupling patterns increasing as follows.3.67,4.02,1.029, and 4.6 times, respectively. The fourth coupling pattern is the best coupling pattern. A science-based evaluation of a coupling system is now available to represent both environmental and economic values by using a common measure of emergy, therefore the emdollars analysis method provides a quantitative way to find what pattern for humanity and nature is sustainable.
中文关键词	耦合模式 ; 能值分析 ; 宏观经济价值 ; 最优耦合模式
英文关键词	coupling pattern emergy analysis emdollars optimal coupling pattern
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1588776
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205355
作者单位	兰州大学, 农业部草地农业生态系统学重点开放实验室, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	林慧龙,肖金玉,侯扶江. 河西走廊山地-荒漠-绿洲复合生态系统耦合模式及耦合宏观经济价值分析--以肃南山地-张掖北山地区荒漠-临泽绿洲为例[J]. 兰州大学,2004,24(5):965-971.
APA	林慧龙,肖金玉,&侯扶江.(2004).河西走廊山地-荒漠-绿洲复合生态系统耦合模式及耦合宏观经济价值分析--以肃南山地-张掖北山地区荒漠-临泽绿洲为例.生态学报,24(5),965-971.
MLA	林慧龙,et al."河西走廊山地-荒漠-绿洲复合生态系统耦合模式及耦合宏观经济价值分析--以肃南山地-张掖北山地区荒漠-临泽绿洲为例".生态学报 24.5(2004):965-971.