保障粮食安全造成的生态服务价值损失初探概要.PDFVIP

2011 5 19 3 Chinese Journal of Eco-Agriculture, May 2011, 19(3): 723−727 DOI: 10.3724/SP.J.1011.2011.00723 * 1 1 2 2 2 芦蔚叶 姜志德 张应龙 谢永生 李 晓 (1. 712100; 2. 712100) 在阐明保障粮食安全造成的生态服务价值损失内涵的基础上, 分析了保障粮食安全造成的生态服务 价值损失的类型。研究结果表明: 保障粮食安全造成的生态服务价值损失分为直接损失和间接损失。直接损 失包括两方面, 一是粮食生产过程中, 土地利用结构的调整使不同生态系统之间发生合理转换所引起的生态 服务价值损失; 二是由于粮食生产对农田生态系统周围的生态系统产生负面影响, 造成其生态服务价值的损 失。间接损失是指土地作为粮食生产用地, 而不是生态服务价值更大的土地利用类型(或生态系统类型), 所产 生的生态服务价值损失。 粮食安全 生态服务价值 直接损失 间接损失 : F062.2 : A : 1671-3990(2011)03-0723-05 Loss of ecosystem services value due to food security 1 1 2 2 2 LU Wei-Ye , JIANG Zhi-De , ZHANG Ying-Long , XIE Yong-Sheng , LI Xiao (1. College of Economics and Management, Northwest A F University, Yangling 712100, China; 2. College of Resources and Environment, Northwest A F University, Yangling 712100, China) Abstract This paper clarified the important issues of the loss of ecosystem services value driven by food security and revealed the types and connotations of the loss. The loss of ecosystem services value caused by guarantee of food security was grouped into direct and indirect loss. Direct loss was further grouped into two. The first of the two groups was caused by conversion among different ecosystems corresponding to the land use adjustment. The second was resulted from adverse effect of food production on ecosystems in the vicinity of agro-ecosystems. Indirect losses was induced by decrease of ecosystem services value of lands, which was used to grain production rather than other land use type (or ecosystem) with higher services value. Key words Food security, Ecosystem services value, Direct loss, Indirect loss (Received Sep