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湖南省醴陵市森林生態(tài)質(zhì)量評價

發(fā)布時間:2018-07-23 08:47
【摘要】:醴陵市素有“中國油茶之鄉(xiāng)”、“中國陶瓷歷史文化名城”、“中國花炮之都”等美稱,是湖南的東大門,歷史悠久、資源豐富、名勝古跡甚多。開展醴陵市森林生態(tài)質(zhì)量評價,有利于準確把握醴陵市森林生態(tài)質(zhì)量現(xiàn)狀、保護醴陵市生態(tài)環(huán)境,也有利于林業(yè)部門制定科學合理的森林資源經(jīng)營管理措施、有效應(yīng)對現(xiàn)有資源環(huán)境的變化,為醴陵市社會經(jīng)濟環(huán)境的可持續(xù)發(fā)展貢獻力量。本研究以湖南省醴陵市為研究對象,結(jié)合2014年醴陵市森林資源二類小班調(diào)查數(shù)據(jù)及前人的相關(guān)研究成果,利用Arcgis、Fragstats、Matlab等軟件,從森林健康、森林生態(tài)服務(wù)功能及森林景觀穩(wěn)定性三個方面對醴陵市森林進行分析,對醴陵市森林生態(tài)質(zhì)量進行評價,得到的結(jié)論如下:(1)根據(jù)系統(tǒng)性、可操作性等原則,本研究選定森林健康、森林生態(tài)服務(wù)功能及森林景觀穩(wěn)定性3個準則層,功能穩(wěn)定性、系統(tǒng)活力性、涵養(yǎng)水源、保育土壤、地形敏感度、景觀適應(yīng)度等11個一級指標,交通區(qū)位、起源、森林災(zāi)害等級、年調(diào)節(jié)水量價值、年凈化水質(zhì)價值、年固土價值、海拔、景觀類型破碎度指數(shù)、優(yōu)勢度指數(shù)等30個二級指標,構(gòu)建醴陵市森林生態(tài)質(zhì)量評價體系;采用主成分分析法確定各部分的權(quán)重,得到:森林生態(tài)服務(wù)功能森林景觀穩(wěn)定性森林健康。(2)森林健康指標分析:醴陵市各健康等級喬木林地面積按大小順序排列依次為:健康(Ⅳ級)較不健康(Ⅱ級)一般健康(Ⅲ級)不健康(Ⅰ級)非常健康(V級),各地區(qū)喬木健康度按大小順序排列依次為:東鄉(xiāng)南鄉(xiāng)西鄉(xiāng)城區(qū)北鄉(xiāng);各健康等級灌木林地面積按大小順序排列依次為:不健康(Ⅰ級)健康(Ⅳ級)較不健康(Ⅱ級)一般健康(Ⅲ級)非常健康(V級),各地區(qū)灌木健康度按大小順序排列依次為:西鄉(xiāng)城區(qū)南鄉(xiāng)東鄉(xiāng)北鄉(xiāng)。(3)森林生態(tài)服務(wù)功能價值指標分析:醴陵市各指標森林生態(tài)服務(wù)功能中價值按大小順序排列依次為:森林涵養(yǎng)水源價值森林保護生物多樣性價值森林固碳釋氧價值森林凈化大氣環(huán)境價值森林森林保育土壤價值森林積累營養(yǎng)物質(zhì)價值;各地區(qū)森林生態(tài)服務(wù)功能總價值按大小順序排列依次為:北鄉(xiāng)南鄉(xiāng)西鄉(xiāng)東鄉(xiāng)城區(qū);不同林分類型單位面積森林生態(tài)服務(wù)功能價值按大小順序排列依次為:闊葉林灌木林三杉林國外松林馬尾松林杉木林柏樹林竹林經(jīng)濟林;各林分類型森林生態(tài)功能服務(wù)總價值按大小順序排列依次為:經(jīng)濟林闊葉林杉木林馬尾松林國外松林竹林灌木林三杉林柏樹林;不同森林生態(tài)服務(wù)功能等級的森林面積按大小順序排列依次為:服務(wù)價值價較高(Ⅲ級)服務(wù)價值低(Ⅰ級)服務(wù)價值高(Ⅳ級)服務(wù)價值一般(Ⅱ級)。(4)森林景觀穩(wěn)定性指標分析:醴陵市各景觀穩(wěn)定性等級喬木林面積按大小順序排列依次為:一般穩(wěn)定(Ⅲ級)較不穩(wěn)定(Ⅱ級)穩(wěn)定(Ⅳ級)不穩(wěn)定(Ⅰ級)非常穩(wěn)定(V級),各地區(qū)喬木景觀穩(wěn)定性按大小順序排列依次為:西鄉(xiāng)南鄉(xiāng)北鄉(xiāng)城區(qū)東鄉(xiāng);各景觀穩(wěn)定性等級灌木林面積按大小順序排列依次為:一般穩(wěn)定(Ⅲ級)較不穩(wěn)定(Ⅱ級)穩(wěn)定(Ⅳ級)不穩(wěn)定(Ⅰ級)非常穩(wěn)定(V級),各地區(qū)喬木景觀穩(wěn)定性按大小順序排列依次為.:西鄉(xiāng)南鄉(xiāng)城區(qū)東鄉(xiāng)北鄉(xiāng)。(5)醴陵市森林生態(tài)質(zhì)量總體上來說較好,各等級森林生態(tài)質(zhì)量的斑塊數(shù)量按多少順序排列依次為:好(Ⅳ級)一般(Ⅱ級)良好(Ⅲ級)極好(Ⅴ級)差(Ⅰ級),處于好(Ⅳ級)等級的森林斑塊最多,接近總數(shù)的三分之一;處于一般(Ⅱ級)、良好(Ⅲ級)兩個等級的森林斑塊數(shù)量接近總數(shù)的一半;處于極好(Ⅴ級)等級的森林斑塊超過總數(shù)的六分之一;處于差(Ⅰ級)等級的森林斑塊不足百分之五。(6)不同樹種組森林生態(tài)質(zhì)量分析:杉木各生態(tài)質(zhì)量狀況等級面積按大小順序排列依次為:一般(Ⅱ級)良好(Ⅲ級)差(Ⅰ級)好(Ⅳ級)極好(V級);馬尾松各生態(tài)質(zhì)量狀況等級面積按大小順序排列依次為:良好(Ⅲ級)一般(Ⅱ級)好(Ⅳ級)差(Ⅰ級)極好(V級);闊葉樹各生態(tài)質(zhì)量狀況等級面積按大小順序排列依次為:良好(Ⅲ級)好(Ⅳ級)極好(Ⅴ級)一般(Ⅱ級)差(Ⅰ級);國外松各生態(tài)質(zhì)量狀況等級面積按大小順序排列依次為:一般(Ⅱ級)良好(Ⅲ級)好(Ⅳ級)差(Ⅰ級)極好(Ⅴ級);竹木各生態(tài)質(zhì)量狀況等級面積按大小順序排列依次為:一般(Ⅱ級)良好(Ⅲ級)好(Ⅳ級)差(Ⅰ級)極好(V級);灌木各生態(tài)質(zhì)量狀況等級面積按大小順序排列依次為:一般(Ⅱ級)良好(Ⅲ級)差(Ⅰ級)好(Ⅳ級)極好(Ⅴ級)。
[Abstract]:Liling City, known as "the hometown of Chinese oil tea", "China's famous historical and cultural city of ceramics", "the capital of Chinese fireworks", is the east gate of Hunan, has a long history, rich resources and many famous historic sites. To carry out the evaluation of the ecological quality of the forest ecological quality in Liling is conducive to the accurate grasp of the status quo of the ecological quality of the forest in Liling and the protection of the ecological ring of the Liling city. The forestry department also helps the forestry department to formulate scientific and reasonable management measures of forest resources, effectively cope with the change of the existing resources and environment, and contribute to the sustainable development of the social and economic environment in Liling. This study takes Liling city of Hunan Province as the research object, and combines the data of the two classes of small classes of forest resources in Liling in 2014 and the predecessors. Related research results, using Arcgis, Fragstats, Matlab and other software, from three aspects of forest health, forest ecological service function and forest landscape stability analysis of Liling forest, Liling forest ecological quality evaluation, the following conclusions are as follows: (1) according to the principle of systematic, operability and other principles, this study selected forest health, Forest ecological service function and forest landscape stability 3 criteria layer, functional stability, system vitality, water conservation, soil conservation, terrain sensitivity, landscape adaptability, and other 11 first grade indicators, traffic location, origin, forest disaster grade, annual water value, annual water quality, annual soil value, altitude, landscape type fragmentation degree Index, dominance index and other 30 two level indicators to construct Liling forest ecological quality evaluation system; using principal component analysis method to determine the weight of each part, the forest ecological service function forest landscape stability forest health. (2) forest health index analysis: Liling city health grade arbor woodland area according to the size order arrangement according to the size The following is: Health (grade IV) is less healthy (class II) general health (grade III) unhealthy (grade I) very healthy (grade V). The health degree of trees in each region is ordered in order of size: North Township of Xixiang city of Nanxiang, Dongxiang, and the order of each health grade shrub land in order of size: unhealthy (grade I) health (grade IV) is less healthy (grade II). General health (grade III) is very healthy (grade V). The order of shrub health in each area is in order of order of size: Dongxiang North Township of Nanxiang, Xixiang city. (3) analysis of the value index of forest ecological service function: the order of value of forest ecological service function of each index in Liling is in order of forest conservation water value forest conservation biology The value of forest to purify the atmospheric environment value forest, the value of forest conservation in forest forest to accumulate the value of soil value forest, the total value of forest ecological service function in each region is in order of order: the Dongxiang city of Xixiang in Nanxiang, North Township; the value of forest ecological service function of different types of forest types is big. The order of the small sequence is: the broad leaved forest shrub forest and the foreign pine forest of pine forest and Chinese fir forest economic forest. The total value of the forest ecological function service of the forest types is in order of the economic forest, the Chinese fir pine forest in the economic forest, the pine forest of the pine forest and the three fir woods in the pine forest, and the different forest ecological services. The forest area of functional grade is arranged in sequence in order of size: high service value (grade III) service value is low (grade I) with high service value (grade I) and service value (grade IV) is generally (grade II). (4) analysis of forest landscape stability index: the order of tree forest area in Liling's landscape stability rank order in order of general stability (grade III). Unstable (grade I) stable (grade I) instability (grade I) is very stable (grade V), and the landscape stability of the trees in each region is arranged in order of size: Dongxiang in the northern town of Nanxiang, Xixiang, and the order of the shrub area of each landscape stability grade in order of order of stability (grade III) is more unstable (grade II) stable (grade I) instability (grade I) ) very stable (V grade). The landscape stability of the trees in each region was arranged in order of order in order of size. (5) the forest ecological quality of Liling city was better in general. The order of the number of forest ecological quality plaques in each rank was in order as follows: (grade IV) in general (grade II), good (grade III) was excellent (grade V). (I) A good (grade IV) grade of forest patches is the most, close to 1/3 of the total; in general (class II), the number of forest patches in two grades of good (grade III) is close to half of the total; the forest patches in excellent grade (grade V) rank more than 1/6 of the total; the forest patches in the grade I grade are less than five percent. (6) The analysis of forest ecological quality of different tree species group: the grade area of the ecological quality of Chinese fir was arranged in order of order: the good (class I grade) poor (grade I) was good (grade IV) excellent (grade V), and the grade area of the ecological quality of Masson Pine was in sequence in order of good (grade III) general (grade II) good (grade I) difference (grade I). Good (grade V); the grade area of the ecological quality of broad-leaved trees in order of order: good (grade III) good (grade IV) excellent (grade IV) general (grade I) difference (grade I); the grade area of the ecological quality of foreign pine is arranged in order of size in order: good (grade III) good (grade IV) poor (grade I) is excellent (grade V); bamboo and wood are born in order. The grade area of state quality is arranged in sequence in order of size: good (grade II) good (grade III) good (grade IV) poor (grade I) is excellent (grade V); the rank area of the ecological quality of shrubs is arranged in sequence in order of size: good (grade I grade) good (grade I) is good (grade IV) excellent (grade V).
【學位授予單位】:中南林業(yè)科技大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:S718.5


本文編號:2138856

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