种植点形式对银杏行道树焦叶的影响

树池和条状绿带是目前常见的2种银杏行道树种植点形式,对采用这2种种植点形式的1064棵银杏行道树焦叶发生率进行调查。结果表明:(1)采用树池形式的银杏6-9月的平均焦叶发生率均高于条状绿带形式,树池内银杏平均焦叶发生率分别为10.9%,21.7%,43.3%,64.2%,条状绿带内银杏焦叶发生率为1.3%,6.4%,14.5%,25.4%。(2)树池内银杏焦叶发生率的增长速度比绿带内银杏焦叶发生率的增长速度快。(3)通过改造银杏的种植点形式,可以达到缓解北京银杏行道树夏季焦叶现象的效果。

Particular Ways of Planting in Cemeteries of Siauliai City （Lithuania）

The issue of cemetery planting is not yet sufficiently studied in Lithuania. Cemetery is one of the sites where people could give way to their subjective comprehension of beauty. Analysis of the cemetery planting revealed certain noticeable features that could be ascribed to the forms of folk art. These are various objects with implied specific content or ornamented compositions. The aim of the research was to ascertain and distinguish graves characterised by specific planting features associated with plants, their layouts on graves. Analysis of the research results shows that two options form the peculiarities of grave planting： depiction of specific objects and ornamentation.We think that majority of the ornaments are made with the single purpose of decoration, and do not associate with symbolic meanings. During this research the graves decorated with planted symbolic objects and ornaments were distinguished. This phenomenon becomes more and more popular in cemeteries of Siauliai city in Lithuania.