立地类型划分对威宁自治县新一轮退耕还林工程中华山松造林效果的影响  

Effect of Site Type Division on Afforestation Effect of Pinus Huashanensis in Annual Farmland Conversion Project in Weining Autonomous County

作　　者：赵大燕 ZHAO Dayan(Forestry Bureau of Weining Autonomous County,Bijie 553100,Guizhou,China)

机构地区：[1]贵州省威宁自治县林业局,贵州毕节553100

出　　处：《林业科技情报》2024年第4期125-127,共3页Forestry Science and Technology Information

摘　　要：威宁自治县自2014年实施“新一轮”退耕还林工程以来,陆续种植用材林华山松,于2020年8月9月组织相关人员,针对不同海拔高度下不同坡度的华山松造林效果进行调查分析。根据调查结果可知:高中山海拔区斜坡的成活率稍高于陡坡,但陡坡的成活率也达到了理想的标准。中山海拔区域斜坡的成活率是43%,中山海拔区陡坡成活率是41%,和陡坡对比,斜坡成活率稍高,但无明显差距。高中山区域陡坡病害率稍高于斜坡,但整体无明显差距,说明高中山区域在斜坡种植华山松切实可行。中山海拔区陡坡病害情况稍微明显,但整体而言,无较大差距,说明斜坡陡坡均可种植。结果证实立地类型划分是营林和造林设计中最重要的工作,通过立地研究可选择最有生产力的造林树种,提出合适的育林措施,从而达到持续高效发展林业的目的。Since 2014,Weining Autonomous County has implemented a"new round"project to return farmland to forest,and successively planted timber forest Huashan Pine.In August and September 2020,relevant personnel were organized to investigate and analyze the afforestation effect of Huashan pine at different altitudes and different slopes.According to the survey results,the survival rate of the slope in the high and middle mountains is slightly higher than that of the steep slope,but the survival rate of the steep slope also reaches the ideal standard.The survival rate of slope in the middle and middle mountains elevation region is 43%,and that of steep slope in the middle and middle mountains elevation region is 41%.Compared with steep slope,the survival rate of slope is slightly higher,but there is no significant difference.The disease rate of steep slope in Gaoshan region was slightly higher than that of slope,but there was no significant difference in the whole,which indicated that planting Pinus huasanensis on slope in Gaoshan region was feasible.The disease of steep slope was slightly obvious in the middle and middle elevations,but on the whole,there was no big difference,indicating that all steep slopes could be planted.The results show that site type division is the most important work in forest management and afforestation design.Through site study,the most productive afforestation trees can be selected,and appropriate forest cultivation measures can be proposed,so as to achieve the purpose of sustainable and efficient forestry development.

关 键 词：立地类型 退耕还林 华山松 造林效果 

分 类 号：S791.31[农业科学—林木遗传育种]