西部林业科学
西部林業科學
서부임업과학
JOURNAL OF WEST CHINA FORESTRY SCIENCE
2015年
2期
112-119
,共8页
生物质能源%赤桉%苏门答腊金合欢%干热河谷%造林技术%薪材产量
生物質能源%赤桉%囌門答臘金閤歡%榦熱河穀%造林技術%薪材產量
생물질능원%적안%소문답석금합환%간열하곡%조림기술%신재산량
biomass energy%Eucalyptus camaldulensis%Acacia suma%dry-hot valley%afforestation technology%firewood production
在对元谋小横山试验林多年跟踪调查研究的基础上，通过对19个参试树种生长量、生物量和热能产值的测定，筛选元谋干热河谷区适宜的薪材树种。同时，比较撩壕、大塘和牛犁沟3种整地方式、不同定植时间、不同定植密度等因素对造林后幼树生长的影响。结果表明，赤桉、银合欢、苏门答腊金合欢、念珠相思、山毛豆等5个树种为元谋干热河谷区适宜的薪材树种，其造林3年后，林木的生物量（气干材）达9．0 t／hm2以上（年平均3．0 t／hm2），其中薪材7．65 t／hm2。最适造林模式为：（1）撩壕整地；（2）造林密度：桉树类5000株／hm2，银合欢、苏门答腊金合欢、念珠相思、山毛豆等10000株／hm2；（3）定植季节是夏至到大暑节令之间。
在對元謀小橫山試驗林多年跟蹤調查研究的基礎上，通過對19箇參試樹種生長量、生物量和熱能產值的測定，篩選元謀榦熱河穀區適宜的薪材樹種。同時，比較撩壕、大塘和牛犛溝3種整地方式、不同定植時間、不同定植密度等因素對造林後幼樹生長的影響。結果錶明，赤桉、銀閤歡、囌門答臘金閤歡、唸珠相思、山毛豆等5箇樹種為元謀榦熱河穀區適宜的薪材樹種，其造林3年後，林木的生物量（氣榦材）達9．0 t／hm2以上（年平均3．0 t／hm2），其中薪材7．65 t／hm2。最適造林模式為：（1）撩壕整地；（2）造林密度：桉樹類5000株／hm2，銀閤歡、囌門答臘金閤歡、唸珠相思、山毛豆等10000株／hm2；（3）定植季節是夏至到大暑節令之間。
재대원모소횡산시험림다년근종조사연구적기출상，통과대19개삼시수충생장량、생물량화열능산치적측정，사선원모간열하곡구괄의적신재수충。동시，비교료호、대당화우리구3충정지방식、불동정식시간、불동정식밀도등인소대조림후유수생장적영향。결과표명，적안、은합환、소문답석금합환、념주상사、산모두등5개수충위원모간열하곡구괄의적신재수충，기조림3년후，림목적생물량（기간재）체9．0 t／hm2이상（년평균3．0 t／hm2），기중신재7．65 t／hm2。최괄조림모식위：（1）료호정지；（2）조림밀도：안수류5000주／hm2，은합환、소문답석금합환、념주상사、산모두등10000주／hm2；（3）정식계절시하지도대서절령지간。
Based on years of continous tracking study on the experimental forests in Xiaohengshan , Yuanmou County , Yunnan , this article documents how efforts were made to identify and select tree species most suitable for fuel wood consumption out of 19 studied tree species across the arid valley area in Yuanmou .In the process indica-tors such as the growth , biomass and levels of heat production of 19 tree species were measured .In the article fac-tors that may have influence on the growth of juvenile trees after being planted with different afforestation modes were discussed by comparing 3 patterns of soil preparation , i.e., ditch digging , large soil pool and bovine fur-row, and various colonization season/density.Results from this study show that Eucalyptus camaldulensis, Leucae-na leucocephala, Acacia suma, Acacia torulosa and Tephrosia candida were 5 species most suitable for afforestation efforts to plant as fuelwood in this area .Three years after the afforestation , the tree biomass was more than 9.0 t/hm2 (annual 3.0 t/hm2), among which the fuel wood was up to 7.65 t/ha.The best afforestation mode is:(1) Soil preparation should conducted by means of ditch digging; (2) Planting density for trees of the eucalyptus species should be set at 5 000 tree/hm2 and for the others , i.e., Leucaena leucocephala, Acacia suma, Acacia torulosa and Tephrosia candida as 10 000 tree/hm2; (3) The most appropriate planting season should be the peri-od from Summer Solstice to Slight Heat .
