安徽农学通报
安徽農學通報
안휘농학통보
AUHUI AGRICULTURAL SCIENCE BULLETIN
2014年
17期
110-112
,共3页
杉木%炼山%造林%土壤%生长量
杉木%煉山%造林%土壤%生長量
삼목%련산%조림%토양%생장량
Cunninghamia lanceolata(lamb.)Hook%Controlled burning%Forestation%Soil%Increment
从福建省洋口国有林场引进杉木2代苗木,通过炼山和不炼山2种方式在福建省沙县设立造林对比试验。结果显示:杉木不炼山方式造林比炼山方式造林投资高12.6%;杉木炼山方式造林前期生长比不炼山方式造林快,5a后渐渐持平,8a后不炼山方式造林显著优于炼山造林;炼山造林还导致土壤容重增大,土壤孔隙度降低,土壤变得紧实。
從福建省洋口國有林場引進杉木2代苗木,通過煉山和不煉山2種方式在福建省沙縣設立造林對比試驗。結果顯示:杉木不煉山方式造林比煉山方式造林投資高12.6%;杉木煉山方式造林前期生長比不煉山方式造林快,5a後漸漸持平,8a後不煉山方式造林顯著優于煉山造林;煉山造林還導緻土壤容重增大,土壤孔隙度降低,土壤變得緊實。
종복건성양구국유림장인진삼목2대묘목,통과련산화불련산2충방식재복건성사현설립조림대비시험。결과현시:삼목불련산방식조림비련산방식조림투자고12.6%;삼목련산방식조림전기생장비불련산방식조림쾌,5a후점점지평,8a후불련산방식조림현저우우련산조림;련산조림환도치토양용중증대,토양공극도강저,토양변득긴실。
The second generation of Chinese fir seedlings introduction,from the Yangkou Forest Farm,Fuji-an province in 2006.The forestation effect without soil preparation in the Sha county of Fujian province were studied.The main results were as follows:forestation investment without soil preparation was 39.2%more than controlled burning;on the early days,increment of forestation without soil preparation was slow-er than the other,they are the same after 5 years,but 8 years later,increment of forestation without soil preparation was faster than controlled burning markedly. The soil fertility of forestation without soil prepara-tion was better as well. Soil bulk density was enlarged,soil porosity was reduced arised from the controlled burning,and the soil becomed tight.