文献类型：期刊文献

中文题名：基于生态-景观视角的城镇河岸带风貌特征评价——以晋江市河溪为例

英文题名：Landscape ecology-scale comprehensive assessment of the characteristics of stream riparian-view in urban areas: a case study in Jinjiang City,Fujian Province

作者：张昶[1,2,3] 王成[1,2,3] 孙睿霖[1,2,3] 金佳莉[1,2,3] 唐赛男[1,2,3]

第一作者：张昶

机构：[1]中国林业科学研究院林业研究所;[2]国家林业局林木培育培育重点实验室;[3]国家林业和草原局城市森林研究中心

年份：2018

卷号：38

期号：23

起止页码：8526-8535

中文期刊名：生态学报

外文期刊名：Acta Ecologica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：林业公益性行业科研专项经费课题(201404030106)

语种：中文

中文关键词：城镇化河溪;河岸带风貌;生态-景观视角;综合评价;指标优化控制值

外文关键词：urban area stream;riparian view;ecology and landscape-scale;comprehensive assessment;optimized control value

分类号：TU984.2

摘要：基于生态-景观视角构建了河岸带风貌(RV,riparian view)综合评价指标体系,选取全域型城镇化典型代表地区晋江市12条主要河溪的120个河段进行数据取样与河岸带风貌综合评价值的计算,以此分析了晋江河溪河岸带风貌的现状,并从整体最优与各项影响因子最优两个层面探讨了河岸带风貌的指标优化控制值,结果表明:(1)受城镇化影响晋江目前河溪河岸带风貌整体情况并不乐观,目前已不存在状态非常好的河段,且96.67%河溪的河岸带风貌已经处于消失、丧失、破坏的状态,3.33%河溪的河岸带风貌也受到了消极的影响;(2)滩涂特征与岸线特征处于非常差状态的河段比例分别达到了57.5%与29.17%,植被特征无明显的非常好与非常差的极端状态,基本集中在36.67%较差、50%一般、13.33%较好的状态,而水体特征(除水质)总体相对较好的河段数量比例为56.67%;(3)浅滩保有率、滩涂宽度、自然滩涂保有度、滨河土地硬度、河道硬度、视线阻隔、植被带高度因子评分值为0的比例分别达到了89.17%、50.83%、64.17%、40.83%、52.50%、63.33%、51.67%,均高于其他评分值比例,这些因子的状态以非常差为主,是目前晋江河溪河岸带风貌短板;(4)从整体最优化与各项因子最优化两个角度提出20项指标优化控制值,若实现这些目标值,RV综合评价的得分值将由原有的1.59分别提升至1.96和3.85,晋江河溪河岸带风貌能够从较差的现状提高到一般或非常好的水平。
Riparian view (RV) can be described as a synthesis of water,vegetation,beach,and shoreline characteristics based on the water-beach-land structure of riparian environments. In addition,RV is shown as an integrated state influenced by both ecological and visual landscape in a certain spatial range,which is defined as 10 times the watercourse width,that is to say,the maximum among the hydrogeological,visual,ecological controlling boundary line of riparian environments. Stream RV is under destruction and disappearing gradually in China,accompanied by the declined visual and ecological functions of riparian environments due to rapid urbanization,which subsequently leads to a series of problems. Comprehensive assessment plays an important role in the construction and management of the remaining stream RV and promoting them. Moreover,landscape ecology scale,the most uniform and coordinate scale that contains both ecological and visual landscape factors,is a maneuverable method for comprehensive RV assessment studies. Hence,this study was designed to evaluate the current state of stream RV and to further figure out the control value for construction based on the evaluation. Firstly,a comprehensive stream RV assessment system was developed including 4 first-grade indexes (stand for water,vegetation,beach,and shoreline characteristics) and 20 second-grade indexes,followed by establishment of the stream RV value computational model using the AHP ( Analytic Hierarchy Process) method. The stream RV state was evaluated and ranked into five categories (“best,”indicating the original stream RV is partially preserved; “better,” suggesting the stream RV is under destruction; “common,”indicating the stream RV suffers from great damage; “worse,” implying the stream RV has generally disappeared,and“worst,”meaning the original stream RV is completely artificial) based on RV values. Secondly,12 major streams in Jinjiang City,a city representing overall urbanization in China,were investigated through the assessment of 120 consecutive but obviously different segments divided according to information from GIS analysis and survey. Twenty second-grade indexes were investigated based on 120 plots (each plot stands for a segment); thus,the RV values of 120 stream segments were calculated,and their status were analyzed to obtain an optimized control value of construction for the Jinjiang stream area. The results showed that: (1) Stream RV in Jinjiang was not encouraging; 96.67% of the segments belonged to the“common”(50%),“worse”(40%),and“worst”(1.67%) categories,and no segment belonged to the“best”category; only 3.33% of them reached the“better”category; (2) beach and shoreline characteristics in the “worst” category were 57. 5% and 29. 17%,respectively,and no vegetation characteristics were in the obvious“best”or“worst”category,which were mainly distributed in the“worse”(36.67%), “common”(50%),and“better”(13.33%) category,while the proportion of water characteristic (except water quality) in“better”category was 56.67%; (3) factors like shoal retention rate,beach width,natural beach retention rate, shoreline land hardness,shoreline bank hardness,sight barrier,and vegetation height have the lowest score(0),and the proportion of these factors having 0 score are 89.17%,50.83%,64.17%,40.83%,52.50%,63.33%,and 51.67%, respectively; (4) Twenty optimized control values at two aspects of overall best and each factor best were proposed; if these objectives are achieved,stream RV value would rise from 1.59 to 1.96 and 3.85,respectively,and RV can be increased from the“worse”category to the“common”or the“best”category.