Tree Size Dependence of Litter Production, and Above-ground Net Production in a Young Hinoki (Chamaecyparis obtusa) Stand
スポンサーリンク
概要
- 論文の詳細を見る
The study was carried out in a 9-year-old hinoki cypress (Chamaecyparis obtusa (Sieb. et Zucc.) Endl.) stand over a span of three years from July 1992 to June 1995, primarily to predict litter production from external tree dimensions by combining open-top cloth-trap and clipping methods. Litter production was virtually concentrated in October and November. Stem cross-sectional area at the crown base was proved to be the reliable predictor of litter production, and that single regression model was evolved irrespective of year. The regression model had proportional constants of 2.696×10^<-2>and 3.540×10^<-2>kg cm^<-2> year^<-1> for leaf litter and total litter production, respectively. Utilizing the model, leaf litter production of the stand was assessed to be 5.04, 5.12, and 4.99, and total litter production to be 6.48, 6.58, and 6.40 Mg ha^<-1> year^<-1> for the first, second and third year, respectively. Biomass increment was 6.67, 7.80, and 7.70, tree mortality was 0.15, 0.13, and 0.41, and insect grazing was 0.09, 0.05, and 0.002 Mg ha^<-1> year^<-1> for the first, second and third year, respectively. Above-ground net production was therefore 13.39, 14.55, and 14.51 Mg ha^<-1> year, and biomass accumulation ratio (biomass/net production) was 1.86, 2.21, and 2.76 year for the first, second and third year, respectively. Considering data from earlier studies and the results of this study, biomass accumulation ratio, BAR (year), of hinoki stands was best related to above-ground biomass, y(Mg ha^<-1>), using the power function: BAR=0.112y^<0.936>. Excluding seedling stands, leaf efficiency (above-ground net production per unit leaf mass) of hinoki stands was 0.91±0.02 (SE) Mg Mg^<-1> year^<-1>, irrespective of stand biomass or age.
- 一般社団法人日本森林学会の論文
- 1997-02-16
著者
-
Hagihara A
Univ. Ryukyus Okinawa Jpn
-
Hagihara A
Univ. The Ryukyus Okinawa Jpn
-
Hagihara Akio
Forest Ecophysiology Laboratory Forest Sciences Division School Of Agricultural Sciences Nagoya Univ
-
Yokota T
Forest Ecophysiology Laboratory Forest Sciences Division School Of Agricultural Sciences Nagoya Univ
-
Ogawa K
Nagoya Univ. Nagoya Jpn
-
ADU-BREDU Stephen
Forest Ecophysiology Laboratory, Forest Sciences Division, School of Agricultural Sciences, Nagoya U
-
YOKOTA Taketo
Forest Ecophysiology Laboratory, Forest Sciences Division, School of Agricultural Sciences, Nagoya U
-
Ogawa Kazuharu
Forest Ecology and Physiology Laboratory, Forest Sciences Division, School of Agricultural Sciences,
-
Adu-bredu Stephen
Forest Ecophysiology Laboratory Forest Sciences Division School Of Agricultural Sciences Nagoya Univ
-
Adu-bredu Stephen
Forest Ecology And Physiology Laboratory Forest Sciences Division School Of Agricultural Sciences Na
関連論文
- Effects of the Absorption of Artificial Acidic Solutions on the Root Systems of Japanese Red Cedar (Cryptomeria japonica D. Don) Cuttings and Saplings
- Self-thinning in Prince Rupprecht's Larch (Larix principis-rupprechtii Mayr) Stands
- Effects of Elevated CO_2 Concentration on the Respiratory Behavior of the Branches of Field-Grown Hinoki Cypress (Chamaecyparis obtusa)
- Temperature effect on maintenance and growth respiration coefficients of young, field-grown hinoki cypress (Chamaecyparis obtusa)
- Tree Size Dependence of Litter Production, and Above-ground Net Production in a Young Hinoki (Chamaecyparis obtusa) Stand
- Seasonal Change in the Temperature Coefficient Q_10 for Respiration of Field-Grown Hinoki Cypress (Chamaecyparis obtusa) Trees
- Canopy photosynthetic production in a Japanese larch forest. II. Estimation of the canopy photosynthetic production
- Canopy photosynthetic production in a Japanese larch stand. I. Seasonal and vertical changes of leaf characteristics along the light gradient in a canopy
- Effect of light interception by non-photosynthetic organs on canopy photosynthetic production
- Evaluation of the light interception by non-photosynthetic organs in a Larix leptolepis plantation
- Time-trajectory of Mean Phytomass and Density in Self-thinning Plant Populations
- Long-term carbon budget of the above-ground parts of a young hinoki cypress (Chamaecyparis obtusa) stand