摘要
为评价黄土高原残塬沟壑区典型林果经济林生态系统服务功能综合服务状况,以陕西省永寿县苹果园为研究对象,采用专家咨询、频度分析等方法构建了包含涵养水源、抗侵蚀性等10个方面17个生态服务指标评价体系,并应用层次分析法和模糊评价法构建生态系统服务综合评价模型,对苹果园生态系统服务功能进行综合评价。评价可得,生态功能、生活功能和生产功能权重分别为0.6753、0.0715、0.2532,生态功能和生产功能是影响果园生态系统服务状况的关键因素。度隶属度评价矩阵表明,林田灌水量、土壤侵蚀强度、Shannon-Wiener指数和苹果产是影响果园生态功能服务状况主要影响因子。残塬沟壑区苹果园生态系统服务功能综合评价指数0.5535,评价结果为Ⅲ等级。主要原因是人为干扰所致,导致林田施肥量过高,不合理经营导致土壤养分较低,根系土壤层含水率低,林分结构单一负离子浓度较低,导致了隶属度评价值较低。研究结果为残塬沟壑区林果经济林生态服务功能评价和可持续利用提供数据支持。
To evaluate the comprehensive service status of typical forest and fruit economic forest ecosystem services in the Residual Gully Regions of Loess Plateau,the apple orchard in Yongshou County,Shaanxi Province was studied by using expert consultation,frequency analysis and other methods to construct an evaluation system of 17 ecological service indicators including 10 aspects of water conservation and erosion resistance,as well as the application of analytic hierarchy process and fuzzy evaluation method.The comprehensive evaluation model of ecosystem services was used comprehensively to evaluate the ecosystem service functions of apple orchards.The results of the evaluation indicated that the weight of ecological function,living function and production function were 0.6753,0.0715 and 0.2532,respectively.The ecological function and production function were the main factors that influenced the status of ecological system service functions in the apple orchard.The degree of membership evaluation matrix showed that the amount of forest irrigation,soil erosion intensity,Shannon-Wiener index and apple production were the main factors affecting the ecological function and service status of the orchard.The overall evaluation index of the ecological system service function status of the apple plantations in Residual Gully Region was 0.5535,which was considered as Grade III.The main reason was due to the anthropogenic interference that led to the excessive fertilizers.Irrational management resulted in low soil nutrients and low root soil moisture.The single negative ion concentration of the sand structure was low.As a result,the evaluation value of membership was low.This study provided data for ecological service function evaluation and sustainable utilization of orchards-apple economic plantation in the Residual Gully Region of Loess Plateau.
作者
台辉
秦富仓
张茂林
李龙
杨振奇
任小同
TAI Hui;QIN Fucang;ZHANG Maolin;LI Long;YANG Zhenqi;REN Xiaotong(Bureau of Lushui Experiment Hydropower Complex Management,Changjiang Water Resources Commission,Chibi 437300,China;Desert Science and Engineering College,Inner Mongolia Agricultural University,Hohhot 010018,China;Water Conservancy Research Institute of Pastoral Area,Ministry of Water Resources,Hohhot 010030,China)
出处
《生态科学》
CSCD
北大核心
2024年第3期36-42,共7页
Ecological Science
基金
国家重点研发计划课题(2017YFC0504605)。
关键词
生态服务功能
AHP
模糊度综合评价法
残塬沟壑区
苹果
ecological service functions
AHP
fuzziness comprehensive evaluation
the Residual Gully Regions of Loess Plateau
apple
