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Table of Content
    Volume 11 Issue 3
    10 March 1987
    Research Articles
    Subtropical Rainforest of Hexi in Nanjing County, Fujian Province, China
    Lin Peng, Qiu Xi-zhao
    Chin J Plan Ecolo. 1987, 11 (3):  161-170. 
    Abstract ( 2069 )   PDF (586KB) ( 1041 )   Save
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    The subtropical rainforests of Castanopsis hystrax, Syzygium hancei Formation etc. discussed in this paper are located in the Hexi area (24˚56′N, 117˚14′E) of Nanjing County, Fujian Province on the north bound of the southern subtropical region in China.According to the survey of 12 plots totalling 1200m2 in the Liudao mountain of Hexi area, the floristic composition consists of 210 species of vasscular plants of 145 genera and 80 families. Analysis of the floristic geographical elements indicated that the percentage of tropical and pan-tropical elements (such as the species of Lauraceae, Myrtaceae, Rubiaceae and Myrsinaceae, etc.) is high, making up 80 % of the total genera.The Hexi subtropical rain forests consist of 7 associations in 3 formations, i. e. (1)Castanopsis hystrix, Syzygium hancei Formation (2) Castanopsis carlesii, C. hystrix Formation and ( 3 ) Syzygium hancei, Cryptocarya chinensis Formation.The evenness (J) and Shannon-Wiener′s index of species diversity (D) of the Hexi subtropical rain forests are 17.26% and 5.47 respectively. The analysis of age structure of the trees in the forests showed that the community is of relative stability, so the communities are one of zonal vegetation types of the southern subtropical region in China.
    Numerical Classification and Ordination of Flood Land Meadow Vegetation
    Zhang Li-quan
    Chin J Plan Ecolo. 1987, 11 (3):  171-182. 
    Abstract ( 1772 )   PDF (635KB) ( 805 )   Save
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    In this paper, the vegetation of flood land meadows within a Swedish nature reserve was studied by using a number of popular numerical classification and ordination methods,which include a polythetic hierarchical agglomerative classification (TABORD program), a polythetic hieratchical divisive classification(TWINSPAN program),PCA ordination (ORDINA program), RA and DCA ordinations (DECORANA program). The results show that these 28 releves can be classified into six plant community types, which are distinguished along a soil-water gradient.In addition, the application of numerical classification and ordination in vegetation ecology and a comparison of these methods applied in this paper are discussed.
    A Study of the Characteristics and the Eco-geographical Law of Stipa Steppe on the Song-Nen Plain
    Li Jian-dong, Zheng Hui-ying
    Chin J Plan Ecolo. 1987, 11 (3):  183-192. 
    Abstract ( 1958 )   PDF (596KB) ( 638 )   Save
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    Abstract The investigation shows that the Stipa genus in its narrow sense has only two species, Stipa baicalensis and S. grandis, on the Song-Nen Plain. The Stipa Steppe constituted by them mainly has four community types: ( 1 ) Stipa baicalensis community; ( 2 ) Stipa baicalensis and Filifolium sibiricum community; (3) Stipa grandis and Stipa baicalensis community and (4) Stipa grandis community. Through the analysis of the geographic distribution and the ecological environment of the two species of Stipa, the flora composition, the species composition of the communities, the characteristic of community structure, the eco-geographical distribution pattern of varies types of Stipa Steppe, and the differences of the water and soil conditions which they reflected, it can be confirmed that the Stipa baicalensis community is the representative zonal vegetation of this region and it should be put under the meadow-steppe in the regionallsation of Chinese temperate grassland, be separated from the steppe which distributes in the Inner Mongolia Plateau, and be considered as an independent natural region.
    The Developments of the Aeluropus littoralis var. Sinensis Community During its Growing Season in the Northern Part of Shandong Province
    Lu Kai-hong
    Chin J Plan Ecolo. 1987, 11 (3):  193-202. 
    Abstract ( 2087 )   PDF (536KB) ( 836 )   Save
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    Aeluropus littoralis var. sinensis community is a main vegetation type of coastal salt meadows in Shandong Province. The growing season is from about March 20 to around December 10. During this period we took a se Dur of samples for examination every 15 days. The measurements included: mean temperature of air and soil, precipitation, evaporation, capacity, air relative humidity, water and salt content of soil; height, coverage and biomass. The relationships between environmental factors and community characters had been analysed. The change of temperature not only delimits the beginning and the end of the growing season, but also has a close relationship with the various developments of this community—especially biomass.According to the changes of biomass, the whole growing season can be divided into two periods. The days before September are the increasing period; the days after September are the decreasing period.On this basis, the relationships between biomass (y), air temperature (x) and time (t) have been discussed separately in the increasing period and the decreasing period. They are: during the increasing period:




    and during the decreasing period:

    The Effect of the Maceration Extract of Dicranopteris dichotoma on the Growth of Several Plant Species
    Ye Ju-xin, Hong Rui-chuan, Nie Yi-ru, Liu Wen-yan
    Chin J Plan Ecolo. 1987, 11 (3):  203-211. 
    Abstract ( 1853 )   PDF (1240KB) ( 954 )   Save
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    Dicranopteris dichotoma shows a great capability in the struggle for existence and a strong excluding force against other plant species in natural communities. We paid much attention to the restraining effect of the chemical secretions of Dicranopteris dichotoma on the other plant species for the exploitation of the waste grasshill fruticeta-herbosa of the subtropic area. Therefore, we had chosen Pinus massoniana, Crotalaria mucronata, Medicago lupulina, M. sativa, Pueraria lobata Trifolium pratense, T. repens, Festuca elatio, Phalaris tuberosa as materials for the experimental cultivation. The result shows that the maceration extract of Dicranopteris dichotoma can restrain the growth of the above-mentioned plants except Pinus massoniana.
    A Preliminary Study on the Fokienia hodginsii Forests in Sichuan Province
    Liu Yu-cheng, Miao Shi-li
    Chin J Plan Ecolo. 1987, 11 (3):  212-219. 
    Abstract ( 1895 )   PDF (481KB) ( 778 )   Save
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    The geographical distribution, ecological features of sites, structure of communities, and measures for the development of the Fokienia hodginsii on the Simian Mountain of Jiangjing County, Sichuan Province were examined. Generally speaking, plants of Fokienia hodgrinsii are scattered in evergreen broadleaved forests and Phyllostachys pubescens forests, and they rarely form pure forests. On the simian Mountain, mixing in the evergreen broadleaved forests, Fokienia hodginsii aggregates and dominates the forests locally. Sichuan Province is its northern limit of distribution.Within a 3,500 square-meter area, there are 72 vascular plants, belonging to 58 genera of 44 families. Among them 34 species are trees. In communities, the tree layer can be divided into three sublayers. Fokienia hodginsii, 18—22m in height, dominates the first sublayer. Although the deciduous broadleaved synusia occassionally occurs due to the differentiation of microsite and the source of species, the evergreen broadleaved trees in each sublayer and the evergreen needleleaved ones in the first sublayer are dominants. The shrub layer, altogether 14 species, is low about 3m in height. In the herbaceous layer the pteridophytic species are somewhat diversified, and the layer is made up of deciduous herbs synusia, and the herbs of spermatophyte in it mainly belong to shadetolerant ones.According to lifeform spectrum of Raunkiaer, the phanerophytes (including 0.7% lianas phanerophytes) account for 75% of the total, among which needleleaved and broadleaved ones are 7.4% and 92.6%, respectively. Geophytes is 12.5%, chamaephyte is 11.11%, hemicryptophyte only 1.38%, and without therophyte. However, combined with abundance or dominance data, the dominance of needleleaved phanerophyte accounts for 55% of the total, while broadleaved one for 45%. This shows the key position and role of the Fokienis hodginsii in communities. The same conclusion can be reached by the analysis of important value as well. With regard to leaf size, it is shown that meso-and microphyllous leaves are 36.11% and 41.61%, respectively, macrophyllous leaves are 13.89%, and both nano-and leptophyllous ones are 4.17% by Raunkiaer′s leaf size.
    Studies on the Natural Taiwania flousiana Forest and Their Communities in Yunnan Province
    Liu Lun-hui, Zhang Jian-hua, Yu You-de
    Chin J Plan Ecolo. 1987, 11 (3):  220-225. 
    Abstract ( 1664 )   PDF (368KB) ( 852 )   Save
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    This paper deals with the virgin Taiwania flousiana forest in northwest Yunnan. By studying its growth and developing conditions, distributions, floristic elements, community structure and auto-developmental process, we come to the conclusion that this forest, which is a rare and greatly valued relic community existing in north-west Yunnan at present, is about 300—500 years old, although a few of the trees may be more than 1000 years old.
    On the Vegetation Regionalisation of Jiangsu Province
    Liu Fang-xun, Huang Zhi-yuan
    Chin J Plan Ecolo. 1987, 11 (3):  226-233. 
    Abstract ( 2168 )   PDF (550KB) ( 1012 )   Save
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    Jiangsu Province on the coast of south-eastern China stretches across the warm-temperate, northern subtropic and midsubtropic bioclimatic belts.Within the province, there are five zonal types of vegetation, namely the warm-temperate deciduous broad-leaf forest, the northern subtropic deciduous and evergreen broad-leaf mixed forest, the midsubtropic evergreen broad-leaf forest, the warm-temperate coniferous forest and the subtropic coniferous forest. The basic factors are the zonal forest vegetation, because Jiangsu Province lies in the forest zone of China.The regionalisation of Jiangsu Province may be divided into an hierarchy of only three categories: the vegetation region, zone and province, for the land area of the province is not extensive and the nature vegetation area is therefore also quite limited. A typological system of vegetation regionalisation of the province has been made, which consists of 2 vegetation regions, 3 vegetation zones and 10 vegetation provinces. Each of the vegetation zones and provinces has been briefly described.
    The Regionalisation Problem of the Vegetation of the Forest Area in Southern Gansu Province
    Li Xiang-wang, Zhang Tian-long
    Chin J Plan Ecolo. 1987, 11 (3):  234-238. 
    Abstract ( 1748 )   PDF (292KB) ( 789 )   Save
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    The forest area in the southern part of Gansu Province lies in the valley lands of the Minshan Mountains, including the mountainous area of the upper and middle reaches of the Bailongjiang and the Touhe Rivers between 103°10′—104°40′E and 32°30′—34°50′N, namely the greater part or part of the counties of Diebu, Zhougu, Lintan, Zhuoni and Wenxian. The vegetation in this area should be regarded as a part of the deciduous broadleaf forest and Picea-Abies forest province in the valley of the Minshan Mountains, which belong to the zone of cold-temperate mountain coniferous forest subregion of cold-temperate moutain coniferous forest in the southeastern part of the Qing-Zang plateau.
    A Brief Introduction to “Nutrient Cycling in Tropical Forest Ecosystems”
    Ye Yan
    Chin J Plan Ecolo. 1987, 11 (3):  239-240. 
    Abstract ( 1401 )   PDF (163KB) ( 642 )   Save
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