导　　师： 千怀遂

学科专业： 120405

授予学位： 硕士

作　　者： ;

机构地区： 广州大学

摘　　要： 惠州市林地资源丰富，全市有林业用地面积713970hm~2，在珠三角9个城市中面积最大。惠州市政府更是将森林生态旅游发展开发纳入全市经济社会发展规划，但是任何不合理的生态旅游活动都可能对惠州市的林地造成破坏。因此，采用合理的区域林地脆弱性评价方法，对于充分保护和利用惠州市森林生态旅游资源，促进旅游业的发展都有重要意义。 本文首先结合生态脆弱性评价和土地评价的概念和内涵，得出区域林地脆弱性的的五个影响因素：气候、地形、植被、土层厚度、人地关系，总结出惠州市林地脆弱的适宜性和限制性因子。在此基础上，构建了一个包含9个指标的惠州市林地脆弱性评价指标体系。其次对各个评价因子进行了分析，并对它们之间的关系进行了相应的探讨。分别建立了土层厚度与海拔、坡度的模型方程、温度与海拔的方程，从定量化的角度反映土层、温度与地形因子的关系；植被覆盖度与植被生产力两者之间呈现正相关的关系；人林距离与植被覆盖之间并不是简单的线性关系，而是因区域不同有各自的变化情况；土层厚度与植被生产力之间，当土层厚度超过60cm的时候，植被的生产力开始出现了下降，这时候影响植被生产力的因素已经不是土层的厚度，而是别的因素。最后以GIS和遥感技术为基础，以30m栅格为评价单元，利用主成分分析法确定指标权重，在ArcGIS中用加权综合评价法对惠州市林地脆弱性进行了评价和分区。研究结果将惠州市林地脆弱性划分为一级脆弱区、二级脆弱区、三级脆弱区、四级脆弱区、五级脆弱区5个等级：一级脆弱区面积约为126Km~2，占评价区总面积的2.08/%；二级脆弱区面积约为605Km~2，占评价区总面积的10/%；三级脆弱区面积约为1392Km~2，占评价区总面积的23/%；四级脆弱区面积约为1877Km~2，占评价区总面积的31/%；五级脆弱区面积约为2058Km~2，占评价区总面积的34/%。总体而言，惠州市整体情况良好，高度脆弱部分只占到整个研究区的12/%左右，分布在龙门的部分区域，惠东县东北部、惠城市区的东部等地,主要是由于自然和人文方面的条件所造成。 Huizhou City has abundant landwood resource,it has713970hm~2forestry landwhich is the biggest in nine cities of Pearl River Delta. Huizhou municipalgovernment especially put the forest eco-tourism development into the city'seconomic and social development plan, but any unreasonable eco-tourism activitiesare likely to cause damage to the woodland of Huizhou City. Therefore, usingreasonable vulnerability assessment methods of Regional woodland has significantvalue to fully protect and utilize the forest eco-tourism resources of Huizhou City, andpromote the development of tourism. This paper based on the concept and content of the ecological vulnerabilityassessment and land evaluation, obtain five influencing factors of the fragile regionalwoodland: climate, topography, vegetation, soil depth, the relationship betweenpeople and land, sum up the vulnerable suitability and restrictive factor of landwoodin Huizhou City. On this basis, build a vulnerability assessment system consisting ofnine indicators of woodland in Huizhou City. Then I analyze the relationship of thefactors. Establishing the model about soil thickness、terrain and temperature; the NPPand vegetation coverage is positive correlation; there is not simply linear relationshipbetween human forest distance and vegetation coverage while differently byareas;when the soil thickness is more than60cm,the NPP begins to decrease and theaffect factor has changed. At last, based on GIS and remote sensing technology,30mgrid for the evaluation unit, using principal component analysis to determine the indexweight, using weighted comprehensive evaluation method to evaluate and partitionthe vulnerability of forest land of Huizhou City in ArcGIS. The results classifywoodland vulnerability in Huizhou City as first class vulnerable, second classvulnerable, third class vulnerable, fourth class vulnerable, fifth class vulnerable fivelevels: first class vulnerability area is approximately126Km~2, accounting for2.08/%of the total area of the evaluation; The second class vulnerable area is about605Km~2,accounting for10/%of the total area of the evaluation; third class vulnerable area is about1392Km~2, accounting for23/%of the total area of the evaluation; the fourth classvulnerable area is approximately1877Km~2, accounting for31/%of the evaluation ofthe total area; the fifth class vulnerable is approximately2058Km~2, accounting forevaluation of total area34/%. Generally speaking, the situation of Huizhou is good,while about12/%is intensely vulnerable. And they are mainly distributed in thecounty of Longmen、northeast of Huidong county and the eastern part of the urbanarea，which are mainly affected by the natural and human factors. Based on thevulnerability of single-factor analysis and comprehensive evaluation, put forwardappropriate protective measures. At last, from the guiding ideology, the principle ofprotection, protection of vegetation resource, forest fire prevention engineering,forest pest control projects five aspects, this paper has proposed some measures of thewoodland eco-tourism in Huizhou City.

关 键 词： 林地 脆弱性 惠州

分 类 号： [S718.5]

领　　域： [农业科学]