当前位置: 首页 > 文章 > 陕西定边荒漠区域长爪沙鼠空间配置格局研究 草原与草坪 2013,33 (4) 23-27,33
Position: Home > Articles > Spatial distribution pattern of Meriones unguiculatusin in desertification grassland area in Dingbian Country,Shanxi Province Grassland and Turf 2013,33 (4) 23-27,33

陕西定边荒漠区域长爪沙鼠空间配置格局研究

作  者:
贾立军
单  位:
榆林农业学校
关键词:
长爪沙鼠;种群分布型;定边县;荒漠草原
摘  要:
通过对陕西定边县北部荒漠区域采用赌洞盗洞法调查长爪沙鼠的相对密度,结果发现:在半固定半流动沙丘中,长爪沙鼠平均相对密度为40.35有效洞口/0.25hm2,在农田及其田边地头中为81.26有效洞口/0.25hm2;用各概率分布理论公式求算3种分布型的理论频数(fc),并作卡方(χ2)检验得:前者χ2(4.533)<χ20.01(11.345),后者χ2(7.2492)<χ20.01(12.277),证明前者非常适合核心分布,后者非常适合嵌纹分布,这是由于前者资源分布相对均匀,后者资源分布相对不均匀所致。
译  名:
Spatial distribution pattern of Meriones unguiculatusin in desertification grassland area in Dingbian Country,Shanxi Province
作  者:
JIA Li-jun;Yulin Agricultural School;
关键词:
Meriones unguiculatusin;;population distribution pattern;;Dingbian County;;desertification grassland
摘  要:
The relative density of Meriones unguiculatusin was investigated based on the methods of stop- ping up and removing holes in the north part of desertification area in Dingbian County,Shanxi Province.The re- sults showed that the relative density was 40.35effective holes/0.25hm2 in the semi-fixed and semi-mobile dune,while it up to 81.26effective holes/0.25hm2 in the sides of the farmland;fc values were concluded using three kinds of distribution with the theory of probability distribution formula,and itsχ2 test showed that the former was χ2(4.533)<χ2 0.01(11.345),and the latter was χ2(7.2492)<χ2 0.01(12.277).Depend on the re- sources distribution,the former was suitable for the core distribution because of relatively uniform resources dis- tribution,while the latter was suitable for the mosaic distribution because of uneven resources distribution.

相似文章

计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊