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A Case Study of forest Carbon Trade in China:Sino-forest Funded Protection of natural secondary forests in Heyuan City,Guangdong

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Chinese forestry Science and Technology 2009年第2期8卷 38-45页

作者： ZHU Xiaolong HOU Yuanzhao LI Yumin Chongqing Key Laboratory of The Three Gorges Area forest Ecology Protection and Restoration Chongqing Academy of forestry Chongqing 400036P.R.China Research Institute of forestry Policy and Information Chinese Academy of ForestryBeijing 100091P.R.China

Climate change has posed a great risk and treats to global *** address the problem,international community resorts to carbon emission reduction,and many countries have implemented afforestation and reforestation project under Clean Development *** started the research and has done a great load of works on forest carbon trade as early as the year of 2002 to contribute to the carbon emission *** paper introduces the implementation of forest carbon trade in Heyuan City,Guan...

关键词： forest carbon trade natural secondary forest Green Carbon Fund voluntary trade market China

Composition and Characteristics of natural secondary forests in Shenzhen,South China

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forestry Studies in China 2004年第2期6卷 6-11页

作者： WangDianpei JiShuyi ChenFeipeng PengShaolin SouthChinaBotanicalGarden theChineseAcademyofSciencesGuangzhou510650P.R.China CollegeofLifeScience SouthChinaAgriculturalUniversityGuangzhou510642P.R.China CollegeofLifeScience ZhongshanUniversityGuangzhou510275P.R.China

The composition and structure of five natural secondary forests in Shenzhen were studied based on data of plots and were compared with Hong Kong zonal forest, so as to detect their succession stage and species diversity level. According to succession process of subtropical forest and ecological characteristics of dominant species, the authors speculate that five communities are at different stages. Sinosideroxylon community dominated by heliophilous evergreen broad-leaved tree (Sinosideroxylon wightianum) and conifer tree (Pinus massoniana) is at the third stage. Itea + Acronychia community dominated by two evergreen broad-leaved heliophytes (Itea chinensis and Acronychia pedunculata) is at the fourth stage. The others, I.e., Schefflera, Sterculia and Cleistocalyx + Sterculia community are at the fifth stage where some mesophytes are dominant but heliophytes have a weighed percentage of importance value. Due to succession stage and different forest management and conservation models, the species diversity of five communities is significantly lower than that of Endospermum community in Hong Kong. The values of Shannon-Wiener index and Pielous evenness index of five communities are 2.04-2.953 and 64.2%-74% respectively, but those of the Endospermum community are 4.74 and 79% respectively. The current situation of these communities suggests that the necessary measures should be taken to protect and restore the communities.

关键词： species composition community structure forest succession natural secondary forest heliophyte mesophyte

Species diversity and stability of natural secondary communities with different cutting intensities after ten years

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Journal of forestry Research 2011年第2期22卷 205-208页

作者： WU Zhi-long ZHOU Xin-nian ZHENG Li-feng HU Xi-sheng ZHOU Cheng-jun Fujian Agriculture and forestry University Fuzhou Fujian 350002China.

Species diversity and stability of natural secondary communities in different layers with different cutting intensities 10 years later were investigated by calculating Marglef Richness index（R）,Shannon-Wiener diversity index（H）,Simpson diversity index（P）,and Pielou Evenness index（J）.Results show that the values of R,H and P among different layers are listed in a decreasing order：the shrub layer the arbor layer the herb layer,all the three indices values reach the maximum under medium selective cutting intensity after 10 *** J value of the shrub layer shows a concave parabolic change with the increase in cutting intensity;it shows a linear increase for the arbor layer,whereas the J value of the herb layer shows an opposite change *** values of R at different cutting intensities had high significant difference,but other indices had not significant *** stability of communities at different cutting intensities after 10 years is non-cutting low selective cutting intensity medium selective cutting intensity high selective cutting intensity extra-high intensity clear *** stability of communities at different cutting intensities after 10 years shows that the greater cutting intensities,the worse the stability is.

关键词： community stability cutting intensity natural secondary forest species diversity

Leaf nutrient dynamics and nutrient resorption:a comparison between larch plantations and adjacent secondary forests in Northeast China

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Journal of Plant Ecology 2016年第2期9卷 165-173页

作者： Tao Yan Xiaotao Lü Kai Yang Jiaojun Zhu State Key Laboratory of forest and Soil Ecology Institute of Applied EcologyChinese Academy of SciencesNo.72 Wenhua RoadShenhe DistrictShenyang 110164China Qingyuan forest CERN Chinese Academy of SciencesNo.72 Wenhua RoadShenhe DistrictShenyang 110016China University of Chinese Academy of Sciences No.19A Yuquan RoadShijingshan DistrictBeijing 100049China

Aims Conversion of secondary forests to pure larch plantations is a common management practice driven by the increasing demand for timber production in Northeast China,resulting in a reduction in soil nutrient availability after a certain number of years following *** resorption prior to leaf senescence was related to soil fertility,an important nutrient conservation strategy for plants,being especially significant in nutrient-poor ***,the seasonal dynamics of leaf nutrients and nutrient resorption in response to secondary forest conversion to larch plantations is not well *** A comparative experiment between larch plantations(Larix spp.)and adjacent secondary forests(dominant tree species including Quercus mongolica,Acer mono,Juglans mandshurica and Fraxinus rhynchophylla)was *** examined the variations in leaf nutrient(macronutrients:N,P,K,Ca and Mg;micronutrients:Cu and Zn)concentrations of these tree species during the growing season from May to October in *** resorption efficiency and proficiency were compared between Larix *** the broadleaved species in the secondary *** Findings Results show that the seasonal variation of nutrient concentrations in leaves generally exhibited two trends,one was a downward trend for N,P,K,Cu and Zn,and another was an upward trend for Ca and *** variations in foliar nutrient concentrations were mainly controlled by the developmental stage of leaves rather than by tree *** of the observed seven elements varied among the five tree species during leaf *** resorption efficiency varied 6–75%of N,P,K,Mg,Cu and Zn,while Ca was not retranslocated in the senescing leaves of all species,and Mg was not retranslocated in Larix ***,Larix *** to be more efficient and proficient(higher than 6–30%and 2–271%of nutrient resorption efficiency and resorption proficiency,respectively)in resorbing nutrients than the broa

关键词： seasonal variation nutrient resorption efficiency soil nutrient availability natural secondary forest Larix spp.

Impact of Terminal Bud Quality on the Growth of Different Growth Forms of Seedlings in Tropical secondary forest

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Journal of Landscape Research 2016年第5期8卷 113-116页

作者： CHEN Yiqing ZHENG Tingting XUE Yang LIN Zhipan SU Shaofeng WANG Xiaoyan Hainan Institute of forestry Science

Health condition and replacement time of terminal bud were selected as quality indexes of regenerated seedlings in 3 different growth forms to analyze their impact on seedling height and ground diameter. The results showed that quality of terminal bud was related to the seedling growth, the regenerated seedlings with healthy terminal buds but no replacement experienced the largest growth amount and slight damage of terminal bud or one replacement stimulated growth of ground diameter. Multiple replacements of terminal bud would reduce seedling quality and influence its growth. Exploration of the quality characters of seedlings helped to know the dynamic features of early seedling growth, and provided theoretical support for the tending operation to improve quality of natural tropical forest.

关键词： natural secondary forest Quality index Health condition of terminal bud Replacement frequency of terminal bud