晋西黄土高原水土保持林适宜密度研究张瑞.pdf

DOI :10.13961/ki.stbctb.2009.04.038 29 4 Vol.29, No.4 2009 8 Bulletin of Soil and Water Conservation Aug., 2009 　 张瑞, 张建军, 赖宗瑞 ( , 100083) 　:, 、, 。, , , 。, , 2 , , 1 325 /hm , 1 733 2 2 /hm , 2 089 /hm 。, 2 2 2 133 /hm , 2 222 /hm , 2 2 356/hm 。、、, , , 。 :;;;;; :A 　　　　　　:1000—288X(2009)04—0067—05　 :S727.22 Best Density of Soil and Water Conservation Forest on Loess Plateau of Western Shanxi Province ZHANG Rui, ZHANG Jian-jun, LAI Zong-rui (Collage of S oil and Water Conservation, and Key Laboratory of S oil and Water Conservation and Desertif ication Control of the Ministry of Education, Beij ing Forestry University , Beij ing 100083, China) Abstract:Soil erosion on the Loess Plateau is serious due to precipitation, temperature, and other natural cli- mate constraints and thus, determination of an appropriate stand density becomes very important.In this study, we conduct a systematic research on several aspects of the existing plantation in Caijiachuan, such as stand growth status, water storage capacity of forest litter, biodiversity, and physical properties of soils. Results show that, in order to improve the growth conditions, biodiversity, and soil physical properties, the best planting density of black locust, Pinus, and the mixed forest should be 1325, 1 733, and 2 089 plant/ 2 hm , respectively, whereas