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Protection Forest Science and Technology
2017
(11)
1-4
灌木枝系结构与积沙效能野外观测
作 者：
高兴天;刘虎俊;袁宏波;郭春秀;刘淑娟;王多泽;万翔;刘开琳;李菁菁
单 位：
甘肃省治沙研究所;甘肃农业大学
关键词：
枝系结构;总体分枝率;逐步分枝率;积沙量
摘 要：
通过对油蒿(Artemisia ordosica)、沙蒿(A.desertorum)、梭梭(Haloxylon ammodendron)、花棒(Hedysarum scoparium)、白刺(Nitraria tangutorum)、红砂(Reaumuria soongorica)、沙拐枣(Calligonum mongolicum)和两种仿真灌木的各级枝数量的观测,分析比较了灌木枝系结构与其积沙量关系。结果显示:半球形的仿真灌木积沙量最大;灌木积沙量与其总体分枝率成反比,但不同形状的灌木积沙量取决于枝系结构。积沙量较大的梭形和半球体灌木是内密外疏,而坛状灌木的内外疏而中间密的积沙量较大。灌木积沙量与枝系结构复杂程度有密切联系,且随着总体分枝率和逐步分枝率变异系数增大而增大。
译 名：
Field Observation of Sand Accumulation and Branching Structure of Shrub
作 者：
Gao Xingtian;Liu Hujun;Yuan Hongbo;Guo Chunxiu;Liu Shujuan;Wang Duoze;Wan Xiang;Liu Kailin;Li Jingjing;Gansu Agricultural University;Gansu Desert Control Research Institute;
关键词：
branching structure;;overall branching ratio;;stepwise branching ratio;;sand-filled yield
摘 要：
The number of branch with different levers of Artemisia ordosica,A.desertorum,Haloxylon ammodendron,Hedysarum scoparium,Nitraria tangutorum,Reaumuria soongorica,Calligonum mongolicumand two types' simulated shrubs were determined,meanwhile the branching structure and sand-filled yield were analyzed,which offered information to select the shrub for control the sandy disaster with shrub and reference on making up simulated shrub.Result shows that:it is the largest to sand-filled yield by the semi-spherical shape of simulated shrub;it is inversely proportional to sand-filled yield and overall branching ratio of shrub,while amount of sand-filled yield depend on the branching structure of shrub.The branching structure with the largest amount of fusiformand hemispherical shape of shrub is a dense inside and sparse outside,as well as urceolus shape of shrub with a branching structure of sparse inside and outside and dense middle.The sand-filled yield of shrub is closely related to the complexity of the branching structure,and increase with the increase of the total stepwise branching ratio and the overall branching ratio of shrub.
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