生态保护政策对岷江上游地区土地.PDF

2010 6 21 6 Chinese Journal ofApplied Ecology, Jun. 2010, 21( 6): 1351- 1358 /* 1* * 1 1 1 1 1 2 刘 淼 胡远满 常 禹 布仁仓 贺红士 陈宏伟 韩文权 1 2 ( , 110016; , 400015) 采用 CLUES模型模拟方法, 对基于历史 展趋势以及 天然林保护工程 和 退耕 还林还草工程 政策下 2000! 2020年间岷江上游地区土地利用 /覆被变化进行了预案分析. 结果表明: 2000! 2020年间, 按历史 展趋势, 作为研究区景观基质的林地面积将不断减少, 而灌木林地和草地面积将不断增加, 景观破碎化程度将不断加剧; 天然林保护工程 和 退耕 还林还草工程 能够有效增加研究区林地面积, 并使草地面积不断下降, 同时能够扭转景观破 碎化趋势, 使景观格局向着更加优化的方向 展. 生态保护政策 景观动态 CLUES模型 岷江上游地区 1001- 9332( 2010) 06- 1351- 08 F301. 21 A Effects of ecoprotection policy on land use/ cover in upper reaches ofM injiang River. LIU 1 1 1 1 1 1 M iao, HU uanman, CHANG u, BU Rencang, HE Hongshi, CHEN Hongwei, HAN 2 1 W enquan ( Institute of App lied E cology, Ch inese A cademy of Sciences, Shenyang 110016, Ch i 2 na; Chong qing G eoEnv ironm entM on itoring Station, Chong qing 400015, Ch ina ) Ch in J App l E col., 2010, 21(6): 1351- 1358. Abstract: By using CLUESmodel, a scenario analysiswasmade on the land use/cover change in the upper reaches ofM injiang R iver from 2000 to 2020, based on the historic development trend and the regulations ofpolicies natural forestprotection and grain for green . In 2000- 2020, according to thehistoric development trend, the forestland area ( landscapematrix) in the study re gion would have a continualdecreasewhile the shrub land and grassland areaswould be increased, and the landscape pattern would bemore fragm enta.l The mi plementation of the policie