期刊论文

中文

中南林业科技大学学报

1673-923X

2012

32

5

102-107

10.14067/j.cnki.1673-923x.2012.05.009

国家生态系统观测研究网络平台建设（20080615） 国家科学技术部公益性项目（200707015） 湖南省高校科技创新团队（湘教通[2008]244号）项目

本校为第一机构

利用定位观测数据,研究了间伐对湖南省会同杉木人工林林下地被物生物量、土壤理化性质的影响。结果表明:按50%强度间伐5 a后,林下植物种类和生物量比对照区分别增加了6种和3 280.16 kg.hm~(-2),生物量的变化率达224.77%,林下死地被物增加了4 380 kg.hm~(-2),提高了92.80%;与对照区相比,林地各层土壤温度提高了3.16%以上,土壤层(40~100 cm)除容重下降了2.44%外,土壤质量含水量、容积含水量、贮水量、毛管持水量、最小持水量、毛管孔隙度、总孔隙度分别提高了4.22%、6.77%、9.95%、4.20%、2.40%、6.38%、1.63%,土壤层(0~45 cm)有机质、N、Ca的含量分别下降了3.21%、7.73%、47.74%,而pH值和P、K、M...

Based on the data collected by located observation, the influence of thinning on biomass of under-story, soil physical and chemical properties were investigated at the Chinese fir plantation in Huitong Ecological Station, Hu＇nan Province. The results show that compared with a controlled plantation ecosystem, five years after 50% thinning, the under-story species and biomass increased 6 species and 3280.16 kg.hm-2, respectively, and the change ratio of biomass increased up to 224.77%, the litter biomass increased 4380 kg.hm-2 and the change rat...