四川间作地区作物高度、覆盖度和叶面积指数的动态变化

生态学杂志

四川间作地区作物高度、覆盖度和叶面积指数的动态变化

林超文;陈一兵;黄晶晶;涂仕华

四川省农业科学院土壤肥料研究所，四川成都 610066

收稿日期:2006-03-06 修回日期:1900-01-01 出版日期:2007-07-10 发布日期:2007-07-10

Temporal variation of plant height, plant cover and leaf area index in intercrop ped area of Sichuan, China.

LIN Chao-wen; CHEN Yi-bing; HUANG Jing-jing; TU Shi-hua

Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China

Received:2006-03-06 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10

摘要/Abstract

摘要： 为研究间作系统的作物参数，于2005年在四川间作地区进行了作物高度、覆盖度和叶面积指数的时间变化研究。结果表明：作物的高度、覆盖度和叶面积指数随时间变化很大；玉米的最大高度是177 cm，最大覆盖度(86%)出现在花期, 最大叶面积指数是1.96；红苕的最大和最小株高分别为22和12 cm, 最大覆盖度(73%)出现在薯块膨大期, 最大叶面积指数为1.79。与玉米间作时，红苕所有作物参数均受玉米影响。在玉米-红苕间作系统中，最危险的侵蚀期是玉米收获后至红苕覆盖度最大期。

关键词: 玉米蚜虫, 生态位宽度, 生态位重叠, 玉米蚜

Abstract: To study the plant parameters of intercropped crops, the temporal variation of plant height, plant cover, and leaf area index in intercropped area of Sichuan was investigated in 2005. The results showed that the plant height, plant cover, and leaf area index all varied greatly with time. For corn, its maximum plant height was 177 cm, maximum plant cover was 86% occurring at flowering stage, and maximum leaf area index was 1.96. For sweet potato, its maximum and minimum plant height was 22 cm and 12 cm, respectively, maximum plant cover was 73% occurring at tuber expanding stage, and maximum leaf area index was 1.79. When intercropped with corn, all the test plant parameters of sweet potato were strongly affected by corn. In this intercropping system, the most dangerous erosion period was from the corn being harvested to the sweet potato growing up where soil surface uncovered by harvesting corn.

Key words: Maize aphids, Niche breadth, Niche overlap, Rhopalosiphum maidis Fitch

林超文;陈一兵;黄晶晶;涂仕华. 四川间作地区作物高度、覆盖度和叶面积指数的动态变化[J]. 生态学杂志.

LIN Chao-wen; CHEN Yi-bing; HUANG Jing-jing; TU Shi-hua. Temporal variation of plant height, plant cover and leaf area index in intercrop ped area of Sichuan, China. [J]. cje.

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