Point Pattern Analysis of Three Sand Fixation Plants in the Mu Us Sandy Land
Artemisia ordosica Krasch, Hedysarum laeve and H. scoparium are three important sand fixation plants in north China, and are usually seeded mixedly. This paper studies their population pattems to discuss species intra-and interspecific interactions, with the aim to provide a theoretical basis for future aerial seeding in Mu Us sandy area. Two 50x50m typical sample plots with different aerieal seeding periods were selected as research sites in Mu Us sandy land, Ningxia. As to the analysis method, Ripley s K function bivariate point pattern was performed to find the space correlation between the plants. The research results show that: Artemisia ordosica Krasch, when seeded alone, is better off if seeded in clusters and controlled in quantity. Seeds density of Hedysarum laeve should be controlled in aerial seeding, Usually scatterly distributed, H. scoparium should not be seeded alone. Hedysarum laeve and H. scoparium can be seeded mixedly, with the former as the main ingredient. The correlation of Artemisia ordosica Krasch and Hedysarum laeve was negative, thus they were not suitable for mixed seeding. So were Artemisia ordosica Krasch and H. scoparium.
Mu Us aerial seeding spatial point patterns correlation
Qiang CUI Jia-rong GAO Bai LI Zhe-guang ZHAO Bin-tian QIAN Jin-rui ZHANG
Department of soil and water conservation, Beijing Forestry University, Beijing, 100083, China;Ningx Department of soil and water conservation, Beijing Forestry University, Beijing, 100083, China;Ningx
国际会议
西安
英文
564-569
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）