1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)(

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1 24 1 Vol.24 No Transactions of the CSAE Jan GIS ( ) t/(hm 2 a) 10.93% 41.43% 46.93% 65.4%. Bi Jiye, Zhu Daolin, Wang Xiufen, et al. GIS based study on grain productivity and resources utilization efficiency at county level in China Transactions of the CSAE in Chinese with Enginlish abstract [1-10] 1 km 1 km AEZ GIS bijiye@163.com dlzhu@cau.edu.cn (Agro-ecological Zone, AEZ) Kassam FAO IIASA Wageningen 20 [11] 35%

2 1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)( ym) yc] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (3) (1 F)(0.05 ym) yc] Y T kg/hm 2 cl cn ch G F y m kg/hm 2 /day y o y c Yp = Y f p) = Y (1 Ky W ) (4) T y c ( T d Yp kg/hm 2 YT kg/hm 2 f ( p) Ky W d [13,14] W d P + S Q Kc ET = S + ( Q Q t +η t t 1 st t t up uc ) (5) Pt (t) mm t Q st t mm ETt t mm Kc t S t 1 S t t Q Q t up uc mm η t P P + ( ETm P) k f ( w) = [1 ky (1 ] (1 s) + [1 ky(1 )] s ETm ETm (6) f (w) k y ET m P s s k 1 Ys = Yp f () s (7) Ys kg/hm 2 Yp kg/hm 2 f(s) IDW GIDW KRIG 1km 1km GIS t/(hm 2 a)

3 % 9 t/ hm 2 a Fig.1 Potential grain productivity at county level in China(except Taiwan province) Ep = Ya / Yp (8) Ep p Yp p Ya p 1 4 E 1 E 2 E 3 E 4 Ep 2 18% 5.73% 12% 18% 36.35% 8% 12% 33.01% 8% 24.9% % 10.93% 48.51% 3 6% 18% %

1 GIS 97 78.45% 12% 18% 909 39.15% 6% 361 18% 130 10.93% 1088 46.86% 24.6% 86% Fig.4 Utilization efficiency of photo-temperature potential at county in China(except Taiwan province) Fig.

4 1 GIS % 12% 18% % 6% % % % 24.6% 86% Fig.4 Utilization efficiency of photo-temperature potential at county in China(except Taiwan province) Fig.2 Utilization efficiency of photosynthetic at county in China(except Taiwan province) Fig.3 Grade distribution of photosynthetic potential utilization efficiency at county in China(except Taiwan province) 5 20% 60% % 82.68% 20% 40% % 20% % % % 4 75% 20% % Fig.5 Grade distribution of photo-temperature potential utilization efficiency at county in China(except Taiwan province)

5 % 40% 30.6% 40% 65% 58.6% 40% 55% 40.8% 65% 10.8% 40% 65% % 40% % % % % 40% 14.5% 40% 60% 26.3% 60% 80% 32.9% 80% 26.3% 60% 80% Fig.6 Utilization efficiency of water resources potential at county in China(except Taiwan province) Fig.7 Grade distribution of water resources potential utilization efficiency at county in China(except Taiwan province) 7 Fig.8 Utilization efficiency of land potential at county in China(except Taiwan province)

6 1 GIS % 80% % 40% % 65.4% % Fig.9 Grade distribution of land potential utilization efficiency at county in China(except Taiwan province) 1km 1km GIS % 41.43% 46.93% 65.4% 1/10 2/5 2/5 3/5 3 [1]. [J] [2]. [M] [3]. [M] [4]. [J] [5]. [J] [6]. [J] [7]. [J] [8]. [J] [9]. [J] [10] [11]. [D] [12]. [M] [13]. [J] [14]. [J]

7 GIS based study on grain productivity and resources utilization efficiency at county level in China Bi Jiye 1,2, Zhu Daolin 1, Wang Xiufen 3,4, Chen Baiming 5 (1.College of Environment and Resource, China Agricultural University, Beijing , China 2.China Land Surveying and Planning Institute, Beijing , China 3. Institute of Environment and Sustainable Development in Agriculture,Chinese Agricultural Academy of Science, Beijing , China; 4. The Key Laboratory of Agro-environment Climate change, Ministry of Agriculture, Beijing , China 5. Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Science, Beijing , China) Abstract: Based on the situation of food security and sustainable agricultural development, this research attempts to study systematically issues of potential grain productivity and resources utilization efficiency in China(except Taiwan province) by applying theoretical models(agro-ecological Zone, AEZ) at county level with GIS technology. The results show that in general the potential grain productivity tends to be higher in southeast than in northeast China, and the average potential photosynthetic productivity, potential photo-temperature productivity, precipitation productivity, water resources productivity and land resources productivity is 65.12, 16.82, 13.74, and t/(hm 2 a) respectively. The average resources utilization efficiency of photosynthetic, photo-temperature, water resources and land resources is 10.93%, 41.43%, 46.93% and 65.4%, respectively, which shows that the present grain productivity has more space to improve. The development of grain production varies significantly among the counties studied, and the utilization efficiency of agriculture resources in Inner Mongolia and Losses Plateau are lower, while in Northwest China, Huang-huai-hai Plain, Sichuan Basin the utilization efficiency of agriculture resources are higher. Key words county; potential productivity; resources utilization efficiency

1556 地理科学进展 30 卷他关于农村住房结构与抗震性能的研究, 则多是从工程抗灾的角度, 研究某种构造类型的房屋, 力图找到传统房屋的结构失误和新建房屋中存在的问 [

1556 地理科学进展 30 卷他关于农村住房结构与抗震性能的研究, 则多是从工程抗灾的角度, 研究某种构造类型的房屋, 力图找到传统房屋的结构失误和新建房屋中存在的问 [ 第 30 卷第 12 期 2011 年 12 月地理科学进展 PROGRESS IN GEOGRAPHY Vol.30, No.12 Dec., 2012 中国农村地区住房结构的区域差异及其影响因素 1, 2, 李方一 3 1,, 高晓路 2 2, 王英杰 (1. 中国科学院区域可持续发展分析与模拟重