摘要
选取固碳能力、生物多样性、土壤改良、土壤涵养水源和防风固沙等5大类11个指标,构建了沙地植被恢复成效评价指标体系,运用层次分析法的基本原理得到了相应的权重,并对毛乌素沙地的3种造林模式进行了综合评价。结果表明:沙柳沙障的固碳能力、土壤改良和防风固沙等效益恢复最好,紫穗槐人工林固碳能力和防风固沙效益恢复次之,但是生物多样性效益恢复最好,樟子松人工林各项效益恢复均较差。综合得分显示,沙柳沙障(75.32)>紫穗槐人工林(67.67)>樟子松人工林(37.31),也就是说,乡土树种的常规造林方法在该地区恢复成效最优,并且相比乔木林,该地区更适合灌木林的营建。
We selected 11 indicators which fall into five categories including carbon sequestration ability,biodiversity,soil improvement,soil water conservation and wind-break and sand-fixation,constructed the assessment index system of sandy land vegetation restoration recovery effect,obtained the corresponding weight by using the basic principle of analytic hierarchy process( AHP),and evaluated three kinds of reforestation models recovery effect in Mu Us Sandy Land. The results showed that the carbon sequestra-tion capacity,soil improvement and windbreak and sand-fixation recovery efficiency of Salix psammophila checkboard were best,the carbon sequestration capacity and windbreak and sand-fixation of Amorpha fruticosa artificial forest were second,but the biodiversity benefits of it was best,all benefits of Pinus sylvestris var. mongolica artificial forest were almost the worst. In addition,integrated scores showed that S.psammophila checkboard( 75. 32) > A. fruticosa artificial forest( 67. 67) > P. sylvestris var. mongolica artificial forest( 37. 31),in other words,conventional afforestation methods of local tree species were the optimal choice in this region,and compared with the arbor,shrub was more suitable for afforestation in this region.
出处
《林业资源管理》
北大核心
2017年第6期108-112,119,共6页
Forest Resources Management
基金
国家林业公益性行业科研专项(201304206)
内蒙古自治区自然科学基金项目(2017MS0373)
关键词
层次分析法
恢复成效
造林模式
毛乌素沙地
Analytical Hierarchy Process(AHP)
recovery effect
reforestation model
Mu Us sandy land
