贵州喀斯特生态脆弱区生态恢复响应  

Response to the ecological rehabilitation of karst fragile ecotopes in Guizhou Province

作　　者：李晨[1,2] 熊康宁[1,2] 李晓娜[1,2] 刘龙春[1,2] 

机构地区：[1]贵州师范大学中国南方喀斯特研究院,贵州贵阳550001 [2]贵州省喀斯特山地生态环境国家重点实验室培育基地,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2011年第2期19-23,共5页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家十二五科技支撑计划重大课题"喀斯特高原峡谷石漠化综合治理技术与示范"(2011BAC09B01);国家自然科学基金(41003037);贵州省科学技术基金(黔科合J字[2009]2284号)

摘　　要：为了评估贵州喀斯特生态脆弱区生态恢复的生态经济效果，以喀斯特生态脆弱区的毕节鸭池、清镇红枫湖、关岭一贞丰花江为例，利用经济和生态足迹分析法对喀斯特地区生态经济恢复状况进行评价，旨在揭示生态恢复的响应机制，探讨喀斯特石漠化区经济可持续的生态恢复模式。研究结果表明，2005～2007年3个示范区土地利用、产业结构及其多样性显著改善。生态足迹计算结果显示3个示范区2005～2007年的生态赤字分别下降0．059、0．211和0．142hm^2／人，生态压力指数（腰卯）分别下降0．13、0．137和0．29，每万元生态足迹2005～2007年分别下降0．352、0．538和0．365。结果显示石漠化综合治理工程提高了示范区资源利用效率，环境承载率下降，经济活动对生态生产性空间的占用减少，可持续性潜力增强。Yachi of Bijie Hongfenghu of Qingzhen and Guanling-Zhenfeng Huajiang Demonstration Areas were taken as cases in the paper to assess the eeo-economic effects of ecological rehabilitation of karst fragile ecotopes in Guizhou Province. By analyzing the economy and ecological footprint, the eco- economic rehabilitation conditions were assessed to reveal the mechanisms of response to ecological restoration and discuss the ecological rehabilitation models for sustainable economic development in rocky desertification areas. The results showed that over the period of 2005 - 2007, the land use, industrial structure and diversity in these regions were significantly improved. The calculation results of ecological footprint showed that, from 2005 to 2007, the ecology deficit in Bijie, Qingzh stration areas decreased respectively by 0. 059, O. 211 and 0. 142 hm2/head; en and Huajiang demon- ecological footprint pres-sure index decreased respectively by 0. 13, O. 136 and 0. 29 ; the ecological footprint producing per 10000 yuan decreased by 0. 352,0. 538and O. 365. From the above results, a conclusion can be drawn that ecological rehabilitation project of karst rocky desertification contributed to the improvement of re- source use efficiency, to the reduction of environmental loading ratio and ecological productive areas by economic activities, and to the increase of sustainabe potentiality in karst eco-demonstration regions.

关 键 词：石漠化综合治理 示范区 生态足迹 喀斯特生态脆弱区 贵州省 

分 类 号：S181[农业科学—农业基础科学]