西北河西灌溉区春玉米-绿肥农田生态系统服务功能价值评估  

Evaluation of the Farmland Ecosystem Service Function of Spring Maize-Green Manure in the Northwest Irrigated Agricultural Area

作　　者：任静[1] 李福夺 尹昌斌[1] 张久东[2] 包兴国[2] 车宗贤[2] REN Jing;LI Fuduo;YIN Changbin;ZHANG Jiudong;BAO Xingguo;CHE Zongxian(Institute of Agriculture Resources and Regional Planning of Chinese Academy of Agricultural Sciences,Beijing 100081,China;Institute of Soil,Fertilizer and Water-saving Agriculture,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730000,China)

机构地区：[1]中国农业科学院农业资源与农业区划研究所,北京100081 [2]甘肃省农业科学院土壤肥料与节水农业研究所,甘肃兰州730000

出　　处：《新疆大学学报（自然科学版）（中英文）》2022年第1期59-66,共8页Journal of Xinjiang University(Natural Science Edition in Chinese and English)

基　　金：中央级公益性科研院所基本科研业务费专项资金(G202101-53);现代农业产业技术体系建设专项资金(绿肥,CARS-22).

摘　　要：农田种植绿肥是提高西北河西灌溉区耕地质量的重要措施之一.本文选取西北河西灌溉区主推绿肥品种毛叶苕子和针叶豌豆,从农产品供给、土壤养分累积、水分涵养、土壤保持以及气体调节五类服务功能,构建春玉米-绿肥农田生态系统服务功能价值评估方法体系,确定春玉米间作不同绿肥农田系统的生态价值.研究显示:春玉米间作绿肥农田生态系统服务功能价值中,农产品供给价值和气体调节价值对总价值的贡献率较大,分别在39%»54%之间和30%»39%之间;与单作春玉米相比,春玉米间作毛叶苕子和针叶豌豆农田系统生态价值分别增长19.37%和43.74%,约为初级农产品生产价值(直接经济效益)的1.8»2.6倍,是总投入成本的4.8倍左右.研究结果可为西北地区农田种植绿肥制定生态补偿政策提供理论和数据依据.Planting green manure in farmland is one of the important measures to improve the quality of cultivated land in Hexi irrigation district in Northwest China.This paper selects the main green manure varieties:vicia villosa roth and needle leaf pea in the Hexi irrigation district,and builds a spring maize-green manure farmland ecosystem service function value evaluation method,from the five service functions of agricultural product supply,soil nutrient accumulation,water conservation,soil conservation and gas regulation,to determine the ecological value of spring maize intercropping with different green manure farmland systems.Result shows that among the service function value of the spring maize intercropping green manure farmland ecosystem,the supply value of agricultural products and the gas regulation value have a greater contribution rate to the total value,ranging from 39% to 54% and 30% to 39%,respectively.Compared with single-cropping spring maize,the ecological value of spring maize intercropping vicia villosa roth and needle leaf pea farmland system increased by 19.37% and 43.74%,respectively,which is about 1.8»2.6 times the value of primary agricultural products(direct economic benefits),and is about 4.8 times the total input cost.The research results provide theoretical and data supports for formulating ecological compensation policies for planting green manure in farmland in Northwest China.

关 键 词：西北灌溉农业区 绿肥 生态价值评估 生态补偿 农田生态系统 

分 类 号：X826[环境科学与工程—环境工程] X828