林网保护区冬小麦生长过程的数值模拟

应用生态学报 ›› 1997, Vol. 8 ›› Issue (3): 250-256.

林网保护区冬小麦生长过程的数值模拟

王汉杰¹, 方越井²

1. 南京空军气象学院大气边界层生态环境研究中心, 南京 211101;
2. 安徽省涡阳县林业局, 涡阳 233607

收稿日期:1996-01-29 修回日期:1996-05-18 出版日期:1997-05-25 发布日期:1997-05-25
基金资助:
国家自然科学基金资助项目(49575250)

Numerical simulation of winter wheat growth in a regular windbredk system

Wang Hanjie¹

Eco-environment Research Centre in Atmospheric Boundary Layer, Meteorology Institute of Air Force China, Nanjing 211101

Received:1996-01-29 Revised:1996-05-18 Online:1997-05-25 Published:1997-05-25

摘要/Abstract

摘要： 给出了一个模拟冬小麦生长过程的产量生态学模式,并对黄淮海平原林网保护区冬小麦的生长过程进行了数值模拟.模型输出变量包括作物的叶面积指数,根、茎、叶、籽等地上和地下器官生物量,以及与作物生长密切相关的土壤水分变化情况、作物水分利用率、光合/呼吸效率等生理生态因子.结果表明,由于林网地区小气候条件的改善,使得农林复合系统较之单作农田有更强的抗旱能力,在干旱的1994年,林网保护下的农林复合系统生产力较单作农田提高11.6%左右.模式输出的小麦地上部分生物量与生长监测资料十分一致.

关键词: 产量生态学, 农田林网, 数值模拟, 莫兰指数, 空间分布, 地理加权泊松模型, 空间尺度, 进界株数

Abstract: An ecological model simulating the process of winter wheat growth is established, and used to do numerical simulation on its growth process with and without the protection of windbreaks. The outputs of the model include the eco-physiological factors which are closely associated with crop growth, such as leaf area index, biomass of various plant organs(root, leaves, stems, and storage organs),dynamics of soil water content, water utilization efficiency, photosynthesis efficiency, respiration efficiency, and so on. The results show that due to the improved microclimate in the windbreaks, the agro forestry mixed system in windbreak areas has a stronger drought resistance than the monoculture system. In the droughty year of 1994, the simulated yield in windbreak areas is about 11.6% higher than that under monoculture conditions, and the simulated above ground yield fits quite well with the field growth monitoring data.

Key words: Procuction ecolgy, Windbreaks, Numerical simulation, Moran’s I, geographically weighted Poisson model (GWPR), spatial scale, spatial distribution, recruitment trees

王汉杰, 方越井. 林网保护区冬小麦生长过程的数值模拟[J]. 应用生态学报, 1997, 8(3): 250-256.

Wang Hanjie. Numerical simulation of winter wheat growth in a regular windbredk system[J]. Chinese Journal of Applied Ecology, 1997, 8(3): 250-256.

参考文献

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2 王汉杰、谢国梁、方越井. 1994.大面积农林复合系统的生态边界层结构及其昼夜变化特征.见: 熊文愈等主编.中国农林复合经营 ———研究与实践.南京: 江苏科学技术出版社,17～30.

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