發(fā)布時間：2018-05-21 09:57

  本文選題：保定市 + 主城區(qū)��； 參考：《河北農(nóng)業(yè)大學(xué)》2015年碩士論文

【摘要】：本文以保定市主城區(qū)公園綠地為研究對象,對其綠地現(xiàn)狀進(jìn)行健康評價。借鑒森林健康評價的思想和方法,從活力、組織結(jié)構(gòu)和土壤狀況三個方面入手,構(gòu)建了一套公園綠地健康評價指標(biāo)體系,運(yùn)用專家打分法與因子分析法確定參評因子的權(quán)重,建立評價模型,并對健康指數(shù)進(jìn)行分級,從而對保定市主城區(qū)公園綠地的健康程度進(jìn)行評價。研究結(jié)果如下:(1)針對保定市主城區(qū)的生態(tài)環(huán)境現(xiàn)狀,構(gòu)建了以該地區(qū)為代表的公園綠地健康評價指標(biāo)體系。以保定市主城區(qū)綠地系統(tǒng)的穩(wěn)定性和可持續(xù)性為目標(biāo),從活力、組織結(jié)構(gòu)、土壤狀況三個方面入手,構(gòu)建了以植物生長勢、病蟲害程度、樹木的胸徑、樹高、單位面積蓄積量、覆蓋度、樹種自然度、土壤PH及持水能力、土壤肥力為指標(biāo)層的健康評價指標(biāo)體系,并運(yùn)用專家打分法和因子分析法確定了各個指標(biāo)的權(quán)重。(2)通過建立城市公園綠地健康評價數(shù)學(xué)模型,將所有樣方的數(shù)據(jù)輸入評價模型,得出健康綜合指數(shù),結(jié)論如下:競秀公園的綠地健康綜合指數(shù)在4.39~7.69之間;植物園綠地的健康綜合指數(shù)在0.00~5.68之間;東風(fēng)公園的綠地健康綜合指數(shù)在6.33~10.00之間;軍校公園的綠地的健康綜合指數(shù)在4.58~7.25之間。(3)結(jié)合健康指數(shù)的分級,將保定市公園綠地分為極不健康綠地、不健康綠地、亞健康綠地、健康綠地四類。通過計算結(jié)論如下:在總調(diào)查的12個樣方中,極不健康綠地1個,占8.33%;不健康綠地1個,占8.33%;亞健康綠地8個,占66.67%;健康綠地2個,占16.67%。(4)從調(diào)查結(jié)果的一系列數(shù)據(jù)得出保定市主城區(qū)內(nèi)公園綠地基本處于不健康狀態(tài)與亞健康狀態(tài)之間。針對非健康綠地,在公園綠地健康評價結(jié)果的基礎(chǔ)上,找出參評指標(biāo)中影響綠地健康狀況的關(guān)鍵因素,主要為綠地中物種多樣性、自然度(即鄉(xiāng)土樹種所占比重)、覆蓋度、土壤含水率及土壤養(yǎng)分含量。針對這些影響因子提出相應(yīng)的公園綠地的改善方案:針對物種多樣性、自然度、覆蓋度較低提出要補(bǔ)植增綠、提高鄉(xiāng)土樹種的利用率;針對土壤狀況問題提出要加強(qiáng)綠地管理;針對景觀效果差提出要加強(qiáng)管理并提高公園綠地景觀規(guī)劃設(shè)計水準(zhǔn)。
[Abstract]:In this paper, the main urban park green space in Baoding City as the research object, the status of green space health evaluation. Using the thought and method of forest health assessment for reference, starting from three aspects of vigor, organization structure and soil condition, a set of evaluation index system of park green space health was constructed, and the weight of participating factors was determined by using expert scoring method and factor analysis method. The evaluation model was established and the health index was classified to evaluate the health degree of park green space in Baoding city. The results are as follows: (1) in view of the ecological environment of Baoding City, a health evaluation index system of park green space represented by this area is established. Aiming at the stability and sustainability of green space system in main urban area of Baoding city, the plant growth potential, the degree of disease and insect pests, the diameter of trees, the height of trees and the volume of accumulation per unit area were constructed from three aspects: vigor, organization structure and soil condition. The index system of health evaluation, including mulching degree, tree species naturalness, soil PH and water holding capacity, and soil fertility. The weight of each index is determined by using expert scoring method and factor analysis method. By establishing the mathematical model of urban park green space health evaluation, the data of all samples are input into the evaluation model, and the comprehensive health index is obtained. The conclusions are as follows: the comprehensive index of green space health of Jingxiu Park is 4.39 ~ 7.69, that of botanical garden is 0.005. 68, that of Dongfeng Park is 6.33 ~ 10.00; Combined with the classification of health index, Baoding park green space was divided into four categories: extremely unhealthy green space, sub-healthy green space and healthy green space. The calculated results are as follows: of the 12 sample squares surveyed, one is extremely unhealthy greenbelt (8.33), one unhealthy greenbelt (8.33), eight sub-healthy greenbelts (66.67th), two healthy green spaces, one unhealthy greenbelt, eight sub-healthy greenbelts, and two healthy greenbelts. From a series of data from the survey results, it is concluded that the park green space in Baoding City is basically between unhealthy state and sub-health state. Based on the results of the health evaluation of green space in the park, the key factors affecting the health status of green space were found out. The main factors were species diversity, naturalness (that is, proportion of native tree species, coverage degree) in green space. Soil moisture content and soil nutrient content. Aiming at these influencing factors, the paper puts forward the corresponding improvement schemes of park green space: aiming at species diversity, naturalness and low coverage, it puts forward to supplement planting to increase green, to improve the utilization ratio of native tree species, and to strengthen green space management in view of soil condition. In view of the poor landscape effect, it is proposed to strengthen the management and improve the level of landscape planning and design of the park green space.
【學(xué)位授予單位】：河北農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU986

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 肖風(fēng)勁,歐陽華,孫江華,張志誠;森林生態(tài)系統(tǒng)健康評價指標(biāo)與方法[J];林業(yè)資源管理;2004年01期

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本文編號：1918729