人工复壮措施对乔木状沙拐枣叶片生长的影响  

Effect of Artificial Rejuvenation on Calligonum arborescens Leaf Growth

作　　者：王晓静[1] 靳正忠[1] 李生宇[1] 李应罡[2] 徐新文[1] 钟宪彬[3] 张忠良[3] 彭惠清[3] 

机构地区：[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]新疆电力设计院,新疆乌鲁木齐830002 [3]中国石油天然气股份有限公司塔里木油田分公司,新疆库尔勒841000

出　　处：《安徽农业科学》2012年第10期5984-5985,5988,共3页Journal of Anhui Agricultural Sciences

基　　金：新疆维吾尔自治区科技计划项目(201130106-3)

摘　　要：[目的]研究人工复壮措施对乔木状沙拐枣叶片生长的影响。[方法]对乔木状沙拐枣林采取平茬、间伐处理,对比分析了同化枝表面积和生物量。[结果]不同定植年限下,乔木状沙拐枣同化枝表面积和生物量差异显著(P<0.01),林龄较大的当年同化枝活力较小;经平茬处理的乔木状沙拐枣林,保留株同化枝萌蘖能力明显增强,其中二次平茬最为突出;间伐对乔木状沙拐枣衰老有明显减缓作用,2 m×1 m间伐方式下乔木状沙拐枣同化枝表面积和生物量最大。[结论]人工复壮更新措施对于延缓塔里木沙漠公路乔木状沙拐枣林衰败,增强其活力有显著作用。[Objective] The aim was to study effect of artificial rejuvenating on Calligonum arborescens leaf growth.[Method] Photosynthetic shoot surface area and its biomass of thinned and cut Calligonum arborescens were comparatively analyzed.[Result] Obvious differences of surface area and its biomass among Calligonum arborescens with different ages represented（P0.01）existed,photosynthetic shoots for the bigger ages trees had higher growth activities;In thinned Calligonum arborescens forest,sprouting capacity for photosynthetic shoots of remaining Calligonum arborescens trees enhanced notably,especially for secondary cutting;Cutting measure remarkably mitigated Calligonum arborescens forest senescence,and cutting by 2 m×1 m had the higher photosynthetic shoot surface area and its biomass.[Conclusion] Artificial rejuvenation had anti-aging effect on Calligonum arborescens forest declining,even promote their growth activities.

关 键 词：乔木状沙拐枣 同化枝 平茬 间伐 塔里木沙漠公路 

分 类 号：S725.7[农业科学—林木遗传育种]