Analysis on the Improvement Effect of Intermediate Cutting and Intercropping Transformation of Pinus massoniana Plantation in the Mountainous Areas of Northern Fujian
To explore the impact of different thinning and intercropping methods on the cultivation effect of Pinus massoniana plantation and taking Pinus massoniana plantations of strip thinning and selective cutting in the moun-tainous area of northern Fujian as the objects,the effects of two transformation methods on the growth of inter-cropped Castanopsis hystrix,Michelia macclurei,and Choerospondias axilaris,understory vegetation conservation,and single plant biomass of Pinus massoniana were studied.The results showed as the following three aspects.(1)The preservation rates of the three intercropped tree species were all high on different sites,indicating that these three tree species could be used as excellent materials for cultivating laminated uneven-aged forests.After the same time of cultivation,the DBH and tree height of Choerospondias axilaris reached the highest,indicating that Cho-erospondias axilaris could have stronger ecological adaptability.(2)Selective thinning could help improve the com-position and richness of understory species of Pinus massoniana,with Gleason index and Margalef index reaching 2.33 and 2.13,respectively,which were 73.8％and 55.47％higher than the control.It could effectively improve the complexity of the forest stand and enhance its stress resistance.(3)After selective thinning,the DBH and height growth of Pinus massoniana were significantly improved,with individual biomass and carbon storage being 55.92％higher than the control.
Pinus massonianaintermediate cutting and intercroppingstand transformationbiomass
万方数据
维普
