[1]LI Xiaoqian,YANG Jihua,WEI Xiaoming.Study on the Suitable Planting Density of Black Pine Forest in the Low Mountain and Hilly Area of Shandong Province[J].Research of Soil and Water Conservation,2017,24(04):379-383.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 04
Page number:
379-383
Column:
Public date:
2017-08-28
- Title:
-
Study on the Suitable Planting Density of Black Pine Forest in the Low Mountain and Hilly Area of Shandong Province
- Author(s):
-
LI Xiaoqian, YANG Jihua, WEI Xiaoming
-
Shandong Provincial Key Laboratory of Soil Erosion and Ecological Restoration, Collage of Forestry, Shandong Agricultural University, Tai’an, Shandong 271018, China
-
- Keywords:
-
low mountain and hilly area; black pine forest; suitable density; ecological benefit
- CLC:
-
S714.7;S725.6
- DOI:
-
-
- Abstract:
-
In order to select the stand density of black pine forest which is suitable for sandstone mountain area, we selected the 4 types of afforestation densities of 9 year old black pine forest which was located in Dujiadao small watershed in Haiyang town, Rushan City in Shandong Province as the research site. Methods of field investigation and laboratory experiment were used to analyze the mass of litter, the biomass of shrub and grass understory of forest, soil physical properties, soil erosion amount, soil hydrology effect, soil nutrient status and so on, and to explore the ecological benefits of black pine forest in different densities. The results showed that there were significant differences in the indexes of black pine forests; in addition to the decrease of litter layer volume with the decrease of planting density, the vegetation coverage and biomass increased with the decrease of planting density, the rest indexes were the density of 2 000 pines/hm2 is the best, followed by the density of 1 660 pines /hm2, and the density of 1 110 pines /hm2 came next; the overall ecological benefits of different types of afforestation densities presented as the sequence: 2 000 pines /hm2 > 1 660 pines /hm2 > 2 500 pines /hm2 > 1 110 pines /hm2. So when we plant the black pine in mountain of Shandong, the suitable planting density ranges from 1 500 to 2 500 pines /hm2.