Vegetation landscape,as the important scenery resources,gets more and more disturbed with visitors increasing in Wuyishan scenery district.Some evaluating standards of vegetation landscape characteristics including sensitive level,landscape importance value and information index of species diversity are adopted to analyze the correlation between tourist influencing factors as well as vegetation landscape characteristics and geographical factors.It shows that human geographical factors have more effects on tourist influencing factors than physical geographical factors.And human geographical factors also possess more impact on vegetation landscape characteristics in Wuyishan scenery district.Finally,as the world nature and culture heritage site,local decision maker in Wuyishan scenery district must strengthen scientific management and unified planning of tourism development to protect the vegetation landscape.
对灵石山米槠林优势种不同叶龄叶绿体色素的差异以及优势种叶绿体色素沿海拔梯度的变化规律进行分析.结果表明:除少数优势种在某海拔梯度以外,不同叶龄叶绿素a、叶绿索b和叶绿素(a+b)存在显著或极显著差异,一般在中高海拔梯度差异最大,且2年生叶片含量高于1年生叶片;而不同叶龄间叶绿素a/b和类胡萝卜素的差异性表现复杂,表现了植物对环境的适应.不同优势种叶绿索[叶绿素a、叶绿素b和叶绿素(a+b)]在海拔梯度间存在显著差异,并且沿海拔梯度的变化呈现一定的规律性,米槠林优势种中有7种优势种不同叶龄叶绿素[叶绿索8、叶绿索b、叶绿素(a+b)]含量均随海拔的升高先升高,一般在A5(442 m)或A6(531 m)达到最大值,然后随海拔的升高逐渐降低,而叶绿索a/b随海拔升高变化趋势比较多样化.类胡萝卜素作为功能色素由于其功能比较复杂,对海拔的响应规律也不尽相同.海拔作为重要的环境因素对于植物叶绿体色素产生显著影响,不同的优势种沿海拔的变化规律存在差异,说明其对环境的适应对策不同.
鸡群一旦连续出现法氏囊病毒感染,就会直接影响养殖户的经济效益。就鸡法氏囊病的病原、流行病学、临床症状及防治方法等进行了概述,以期引起广大养禽户对法氏囊病的高度重视,并且要采取相应措施严加防范。
On the basis of ecological security theory and by using ecological footprint analysis,an applied research is carried out in Wuyishan Scenery District,which is used to measure the impact of the human activity on ecological environment and sustainable development and give quantitative evaluation.The result shows that the ecological footprint is 1.250 3 hm2 per person,ecological carrying capacity is 4.147 6 hm2 per person,and ecological occupancy rate is 0.301 5 in Wuyishan Scenery District.However,the ecological occupancy rate of grassland reaches up to 11.535 and that of waters reaches up to 5.386.The research shows that Wuyishan Scenery District is in a secure state,but the grassland and water eco-system are in the insecure state.
The comprehensive evaluation of ecotourism environment is important for perceiving the environment status and improving the tourism quality.Fuzzy comprehensive evaluation is one of the general application and effective methods used to comprehensive evaluation.According to the actuality of eco-tourism resource in Wuyishan Scenery District,this paper applies the Analytic Hierarchy Process(AHP)to the fuzzy comprehensive evaluation,sets up the mathematics model of the multi-hierarchy,multi-operator on fuzzy comprehensive evaluation and makes available and rational evaluation to eco-tourism environment in Wuyishan Scenery District.The results show that the quality grades of scenery district units are first to second class and the quality grades of Wuyishan Scenery District is first class.It indicates that the eco-tourism environment quality is perfect.
The greenness (SPAD) of uneven-aged leaves of dominant species in the Castanopsis carlessi forest at different altitude gradients in Lingshishan National Forest Park, Fujian Province, China were measured by using portable chlorophyll meter SPAD-502. In addition, the correlation between SPAD value and the concentration of chlorophyll and foliar nitrogen was also investigated. Significant variations in SPAD values were found between the uneven-aged leaves of different dominant species and different altitude gradients. Regression analysis showed that SPAD value was significantly correlated with the concentration of chlorophyll and the content of foliar nitrogen, indicating that SPAD value could be indicators for foliar chlorophyll and nitrogen. It is suggested that SPAD meter is a useful tool for forest assessments in decision-making and operational nutrient management programs.
The elevation response of the composition and biomass of coarse woody debris in the moist evergreen secondary forest in Lingshi Mountains was studied.There were four kinds of composititon,such as snags,logs,stumbs and branches.The results showed that the highest biomass of coarse woody debris(CWD) in ever green secondary forest in Lingshi Mountains was 104.10 t·hm-2.There was no logs in the elevation of 187m because of the serious jamming.Generally,logs and snags dominated in the biomass of CWD in secondary forest,and the biomass of the thin branches or twigs dominated in non-CWD.
By using box dimension,information dimension and correlation dimension,fractal features of Wuyishan Natural and Culture Heritage were studied at a multi-dynamic scale. At the A sampling scale (with 1.474 box dimension,1.415 information di-mension,and 1.048 correlation dimension),the derived correlation coefficients (R) are 0.994,0.999 and 0.969. At the B sampling scale,box dimension ranges from B1 to B4,the correlation coefficient ranges from 0.825 ~ 1.200,R values are all above 0.961. The range of information dimension is 0.919 ~ 1.302 with R values above 0.964. Correlation dimension range is 0.822 ~ 1.364 with R values above 0.941. At the C sampling scale,range of box dimension is C1 ~ C16 (excluding plots with spot quantity between 0 ~ 1),the correlation coefficient is 0.175 ~ 0.931 with R values above 0.775. That of information dimension is 0.200 ~ 1.039 with R values above 0.771. Correlation dimension range is 0.506 ~ 1.929 with R values above 0.704. It is thus concluded that: the scenery system of Wuyishan Natural and Culture Heritage has obvious fractal characteristics. Furthermore,the fractal dimensions are sensitive to sampling scale.
Specific leaf area(SLA),leaf dry matter content(LDMC) and nutrient content of different age leaves were investigated along the altitudinal distribution gradient of dominant populations in Castanopsis carlessi forest in Lingshishan National Forest Park.Furthermore,the correlation between specific leaf area,leaf dry matter content and leaf nutrient content were analyzed.The results showed that the variation of different age leaves were existing in leaf traits.SLA was positively correlated with the leaf content of N,P,K and Mg while it was negatively correlated with LDMC,C/N and C/P.SLA of two years old leaves was negatively correlated with the content of Ca and positively correlated with N/P which was different with the age of one year old leaves.We can conclude that the leaf traits were the representation of adaptation to environment long-term.
This review describes the characteristics and hot spots of wetland research, including biodiversity protection of wetland, management and restoration of wetland, function and process of wetland, and the theories, methods and scales of landscape ecology. Moreover, some deficits of landscape ecology theory and method were discussed, and the application of landscape ecology to research on wetlands was reviewed specially, involving in the application of landscape structure principle, landscape pattern, and scale and hierarchy theory. In conclusion, landscape ecology plays an enlightening and guiding function on the comprehensive research of wetlands at multi-scales.
Based on the nearest neighbor distance method,the characteristices of spatial distribution of landscape resources in Fujian Province were studied.The result showed the whole landscape resources in Fujian Province is collective distribution,among which the distribution of scenery districts,nature reverses and forest parks are relatively different,presenting a random distribution pattern.According to the characteristics of three landscape resources,new senery districts and different corridors shuold be created,so that a landscape net is made in Fujian Province,the landscape net will play a main role in keeping landcape system perfect.
Species richness,species diversity index and evenness index of six forest landscape in Wuyishan Scenery District including Pinus massoniana forest, Cunninghamia lanceolata forest,economic forest,bamboo forest,broad-leaved forest and Camellia sinensis plantation were discussed by using the sampling data. The results show that species richness is different with types of vegetation in six forest types. Species richness of shrubs is higher, whereas those of trees and herbs are lower,and the vertical structure of species richness is in the following order:shrubs>trees>herbs in most forest types. The differences of species diversity among the six forests are significant,and the order of species diversity is broad'leaved forest> Pinus massoniana forest > Cunninghamia lanceolata forest>bamboo forest> Camellia sinensis plantation>economic forest, which accords with the general law of the variety of species diversity:natural forest>half artificial forest>artificial forest. The results of species diversity of different stages in Pinus massoniana forest indicate that species diversity is increased with the succession of forest. Comparison of species diversity in the Wuyishan Scenery District with that in other areas shows that Wuyishan Scenery District is an area with a very abundant plant diversity.
根据森林生态系统的特征和服务功能的内涵,采用物质量和价值量相结合的方法,运用影子价格法、机会成本法、替代花费法、收益资本化法等方法定量评价了武夷山风景名胜区森林生态系统服务功能的经济价值。结果表明:武夷山风景名胜区森林生态系统每年服务的总价值为2.02亿元,其中涵养水源价值为354.64万元,保持土壤价值为7 815.75万元,固碳吐氧价值为4 273.94万元,净化空气价值为3 120.99万元,林产品价值为3 232.10万元,森林景观与游憩价值为1 369.47万元,保护生物多样性的价值6.90万元。
对武夷山国家级自然保护区与建瓯毛竹丰产林毛竹种群结构特征比较研究结果表明,毛竹天然林中老龄及枯死竹占比例较大,年龄结构呈"J"型分布,而毛竹人工林年龄结构由于成熟竹材的人为砍伐则近似正态分布;毛竹天然林胸径和树高分布相关性较人工林显著,但人工林林分结构比天然林理想,其均匀度、整齐度均大于天然林.
Based on the protection actuality of world heritage and the basic theory of landscape,the paper attempts to apply the essence of landscape ecology-landscape structure and function principle,landscape pattern theory,hierarchy-scale theory,and biological diversity principle-to the research and protection of world heritage.It provides a new theory and a new perspective for the application of landscape ecology.