切根、中耕对沙地樟子松人工林生长与健康的影响  

Influence of cutting roots and intertillage on growth and health of Pinus sylvestris var. mongolica plantations in sandy land

作　　者：张日升[1] 王恩利[1] 肖薇[1] 徐贵军[1] 于相洋[1] 

机构地区：[1]辽宁省固沙造林研究所,辽宁阜新123000

出　　处：《辽宁林业科技》2013年第2期1-3,26,共4页Liaoning Forestry Science and Technology

基　　金：国家"十二.五"科技支撑课题(2012BAD19B08);中央财政林业科技推广示范资金项目(辽〔2012〕04号)

摘　　要：通过研究切根和中耕措施对沙区樟子松人工林生长与健康的影响得出:切根和中耕措施能明显减轻樟子松近熟林的感病情况,控制成熟林病情的发展,同时也能促进近熟林胸径生长,但对成熟林胸径生长影响并不明显;樟子松细根主要分布区在地下0～80 cm,切根和中耕措施能促进近熟林细根量的增加。In this study, the influences of cutting roots and intertillage on groh and health of Pinus sylvestr~ var. mongolica planta- tions were investigated. The results indicated that cutting roots and interfillage declined the disease significance in near-mature forest of P/nus sylvestr/s var. mongolica and controlled the disease development in mature forest. Besides, cutting roots and intertillage in- creased the diameter of trees in near-mature forest but shown insignificant influence to frees in mature forest. The 0 - 80 cm soil layer was the main dislribufion area of fine roots, and cutting roots and intertillage increased the number of fine roots.

关 键 词：樟子松 人工林 切根 中耕 

分 类 号：S791.253[农业科学—林木遗传育种]