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海岸带复合农林系统植物蒸腾耗水规律研究
引用本文:彭方仁,黄宝龙,李杰,张纪林,孙金林.海岸带复合农林系统植物蒸腾耗水规律研究[J].南京林业大学学报(自然科学版),1999,23(6):19-22.
作者姓名:彭方仁  黄宝龙  李杰  张纪林  孙金林
作者单位:1. 南京林业大学,南京,210037
2. 江苏省林业科学研究院
3. 江苏省如东市林果站
基金项目:国家“九五”科技攻关项目!(96 - 007 - 03 - 05 - 03)
摘    要:通过对江苏省如东棉花原种场林- 农- 果、林- 果、棉田生态系统不同植物蒸腾作用特性及其与环境因子的相关分析,研究了不同复合系统的蒸腾耗水规律。结果表明:尽管不同植物的蒸腾速率存在一定的差异,但其日和季节变化规律基本一致:蒸腾作用的日变化表现出早、晚低,中午高的单峰曲线;蒸腾速率随植物的生长发育和环境因子的变化而表现出低- 高- 低的季节变化趋势;光强、空气相对湿度、气温是影响蒸腾速率的主要环境因子;在三种不同生态系统中,林- 果复合生态系统的蒸腾耗水量最低、水分利用效率最高,是一种在沿海地区适宜推广的优化栽培模式。

关 键 词:复合农林业  蒸腾速率  水分利用效率
文章编号:1000-2006(1999)06-0019-04
修稿时间:1999-06-02

A Study on the Pattern of Plant Transpiration Water Consumption in Agroforestry Systems in Sea-coast Areas
Peng Fangren,Huang Baolong,Li Jie,Zhang Jilin,Sun Jinlin.A Study on the Pattern of Plant Transpiration Water Consumption in Agroforestry Systems in Sea-coast Areas[J].Journal of Nanjing Forestry University(Natural Sciences ),1999,23(6):19-22.
Authors:Peng Fangren  Huang Baolong  Li Jie  Zhang Jilin  Sun Jinlin
Institution:Peng Fangren\ Huang Baolong\ Li Jie(Nanjing Forestry University\ Nanjing\ 210037)Zhang Jilin\ \ \ \ \ \ \ \ \ Sun Jinlin (Forestry Research Institute of Jiangsu Province)\ \ \ \ (Rudong Forest and Fruit Station of Jiangsu Province)
Abstract:The pattern of water consumption in three different ecosystems (forest fruit crops agroforestry system,forest fruit agroforestry system and cotton ecosystem) was studied by anayling the plant transpiration in Rudong city,Jiangsu province.The results were mainly as follows:although there were some differences in the transpiration rate of different plants,the daily and seasonal change courses of different plants were the same.The daily course of plant transpiration rate showed a pattern of single peak with a high value in midday and a low value in the early morning and early evening,respectively.The transpiration rate changed with the plant development and change of environment facts and showed a seasonal change pattern of low highlow.The plant transpiration rate was obviously affected by light intensity,relative humidity and air temperature.The forest fruit agroforestry system had the lowest water consumption and highest water usage efficiency in the three ecosystems and it proved to be one of the optimum cultivation patterns for higher economic benefit and effective uses of water resource in seacoast areas.
Keywords:Agroforestry  Transpiration rate  Water usage efficiency
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