西藏山南森布日极高海拔地区生态搬迁安置区造林绿化作业设计探讨

Design of Afforestation Operation in Ecological Relocation and Resettlement Area with Extremely High Altitude in Senburi of Shannan of Xizang Autonomous Region

介绍西藏山南市森布日极高海拔地区生态搬迁移民安置区(一期)项目工程概况,及地形地貌、气候、土壤等自然条件。采取宜乔则乔、宜灌则灌、适地适树、适种源,景观多样性与生态功能相结合的原则进行项目区造林绿化作业设计。绿化树种主要选择了樟子松、油松、河北杨、白榆、紫叶李、山杏、沙枣、苹果、侧柏、新疆杨等18种;草种主要选择了早熟禾、黑麦草、白草、高羊茅及波斯菊。对整地方式、栽植时间、防护、施肥、草种播撒、草坪修剪、管护措施等关键环节进行了论述。

This paper introduced the project situation of ecological relocation and resettlement area(phase I),and the natural conditions such as landform,climate and soil in Senburi extremely high altitude area,Shannan,Xizang.The afforestation operation design in the project area should be based on the principle of combining landscape diversity with ecological function to select suitable arbors,shrubs,species and seed sources according to the actual conditions.The selected 18 species of greening trees mainly included Pinus sylvestris var.mongolica,Pinus tabuliformis,Populus hopeiensis,Ulmus pumila,Prunus cerasifera f.atropurpurea,Armeniaca sibirica,Elaeagnus angustifolia,Malus pumila,Platycladus orientalis,Populus alba var.pyramidalis,etc;the grass species mainly included Poa annua,Lolium perenne,Pennisetum centrasiaticum,Festuca elata and Cosmos bipinnatus.Finally,this paper discussed the key links such as land preparation method,planting time,protection,fertilization,grass seed sowing,lawn pruning,management and protection measures.