黄土高原地区玉米生产潜力模拟研究  

Simulation of Maize Potential Productivity in the Loess Plateau Region of China

作　　者：李军[1] 王立祥[1] 邵明安[2] 樊廷录[3] 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100 [2]中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100 [3]甘肃省农业科学院旱地农业研究所,甘肃兰州730070

出　　处：《作物学报》2002年第4期555-560,共6页Acta Agronomica Sinica

基　　金：国家"九五"科技攻关专题 (96-0 0 4-0 4-0 9);中国科学院知识创新工程项目 (KZCX2 -4 11); UNDP CPR 91/114项目资助。

摘　　要：比较了作物生产潜力常规研究方法与作物生长模拟研究方法的特点 ,在玉米生长模拟模型介绍、模型验证和气候、土壤、作物数据库组建的基础上 ,应用 DSSAT3中的 CERES—玉米模型模拟研究了黄土高原 2 2个地点玉米光温生产潜力和气候生产潜力 ,获得了各点 6～ 15年玉米的产量潜力值 ,并统计计算了研究时段内玉米生产潜力的平均值、标准差、最高值、最低值和水分满足率。黄土高原春玉米光温生产潜力、气候生产潜力和水分满足率分别为82 71～ 15 973kg/ hm2 、 0～ 135 4 3kg/ hm2 和 0～ 1.0 0。黄土高原夏玉米光温生产潜力为 5 884～ 15 387kg/ hm2 。On the bases of maize growth simulation model introduction, model validation and database establishment, the CERES maize model of DSSAT3 was used to simulate the photothermal potential productivity (PPP) and climate potential productivity (CPP) of maize at 22 sites of loess plateau region of China. The maize yield potential data were obtained from each site for 6 to 15 year period. The mean yield, yield standard deviation, maximum and minimum yield of maize PPP and CPP as well as water content ratio (WCR=CPP/PPP) were calculated at each site. The estimates of PPP, CPP and WCR of spring maize in the loess plateau region were 8271～15973 kg/ha, 0～13543 kg/ha and 0～1.00 respectively. The value of PPP of summer maize were 5884～15387 kg/ha. These results may provide some information on maize yield increase and crop production adjustment in the loess plateau region of China.

关 键 词：黄土高原地区 玉米 生产潜力 模拟研究 CERES-玉米模型 

分 类 号：S513[农业科学—作物学] S162.5