Intercropping enhances soil carbon and nitrogen

文献类型： 外文期刊

第一作者： Cong, Wen-Feng

作者： Cong, Wen-Feng;Li, Long;Zhang, Fu-Suo;Cong, Wen-Feng;van der Werf, Wopke;Hoffland, Ellis;Six, Johan;Sun, Jian-Hao;Bao, Xing-Guo

作者机构：

关键词： ecosystem services;functional complementarity;intercropping;plant diversity;plant productivity;root biomass;soil carbon;soil nitrogen

期刊名称：GLOBAL CHANGE BIOLOGY （ 影响因子：10.863； 五年影响因子：11.716 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Intercropping, the simultaneous cultivation of multiple crop species in a single field, increases aboveground productivity due to species complementarity. We hypothesized that intercrops may have greater belowground productivity than sole crops, and sequester more soil carbon over time due to greater input of root litter. Here, we demonstrate a divergence in soil organic carbon (C) and nitrogen (N) content over 7years in a field experiment that compared rotational strip intercrop systems and ordinary crop rotations. Soil organic C content in the top 20cm was 4%+/- 1% greater in intercrops than in sole crops, indicating a difference in C sequestration rate between intercrop and sole crop systems of 184 +/- 86kg Cha(-1)yr(-1). Soil organic N content in the top 20cm was 11%+/- 1% greater in intercrops than in sole crops, indicating a difference in N sequestration rate between intercrop and sole crop systems of 45 +/- 10kg Nha(-1)yr(-1). Total root biomass in intercrops was on average 23% greater than the average root biomass in sole crops, providing a possible mechanism for the observed divergence in soil C sequestration between sole crop and intercrop systems. A lowering of the soil N-15 signature suggested that increased biological N fixation and/or reduced gaseous N losses contributed to the increases in soil N in intercrop rotations with faba bean. Increases in soil N in wheat/maize intercrop pointed to contributions from a broader suite of mechanisms for N retention, e.g., complementary N uptake strategies of the intercropped plant species. Our results indicate that soil C sequestration potential of strip intercropping is similar in magnitude to that of currently recommended management practises to conserve organic matter in soil. Intercropping can contribute to multiple agroecosystem services by increased yield, better soil quality and soil C sequestration.

分类号： Q142.2

  • 相关文献

[1]Land surface phenology of China's temperate ecosystems over 1999-2013: Spatial-temporal patterns, interaction effects, covariation with climate and implications for productivity. Wu, Chaoyang,Peng, Dailiang,Xu, Shiguang,Hou, Xuehui,Gonsamo, Alemu,Gonsamo, Alemu.

[2]Accuracy of root modeling and its potential impact on simulation of grain yield of wheat. Zhao, Zhigan,Xue, Lihua,Wu, Yongcheng,Zhang, Jingting,Wang, Zhimin,Zhao, Zhigan,Wang, Enli,Xue, Lihua,Zhang, Jingting. 2013

[3]Accuracy of root modelling and its impact on simulated wheat yield and carbon cycling in soil. Zhao, Zhigan,Xue, Lihua,Wu, Yongcheng,Zang, Hecang,Qin, Xin,Zhang, Jingting,Wang, Zhimin,Zhao, Zhigan,Wang, Enli,Qin, Xin,Xue, Lihua,Zang, Hecang,Zhang, Jingting.

[4]Effect of soil moisture and atmospheric humidity on both plant productivity and diversity of native grasslands across the Loess Plateau, China. Deng, Lei,Shangguan, Zhouping,Deng, Lei,Shangguan, Zhouping,Wang, Kaibo,Li, Jianping,Zhao, Gangwei.

[5]High plant diversity stimulates foraging motivation in grazing herbivores. Feng, Chao,Ding, Shiwen,Zhang, Tianyuan,Li, Zhiqiang,Wang, Deli,Wang, Ling,Liu, Chen,Sun, Jinyan,Peng, Fugang.

[6]Pest regulation and support of natural enemies in agriculture: Experimental evidence of within field wildflower strips. Hatt, Seyerin,Lopes, Thomas,Francis, Frederic,Hatt, Seyerin,Chen, Julian,Boeraeve, Fanny.

[7]Influence of artificial grassland restoration on soil carbon pool in an arid mining land. Mu, Yan,Wu, Gao-Lin,Mu, Yan,Liu, Yu,Chang, Xiao-Feng,Wu, Gao-Lin,Tian, Fu-Ping. 2016

[8]Straw coverage alleviates seasonal variability of the topsoil microbial biomass and activity. Lou, Yilai,Liang, Wenju,Lou, Yilai,Xu, Minggang,He, Xinhua,Wang, Yidong,Zhao, Kai.

[9]Higher yields and lower methane emissions with new rice cultivars. Hu, Shuijin,Yan, Xiaojun,Wang, Lili,Zhang, Yi,Zhang, Weijian,Jiang, Yu,Zhang, Jun,Song, Zhenwei,Zheng, Chengyan,Deng, Aixing,Zhang, Weijian,van Groenigen, Kees Jan,van Groenigen, Kees Jan,van Kessel, Chris,Linquist, Bruce A.,Huang, Shan,Hungate, Bruce A.,Hu, Shuijin,Wu, Lianhai,Chen, Jin,Hang, Xiaoning,Horwath, William R.,Ye, Rongzhong.

[10]Variations of carbon stock with forest types in subalpine region of southwestern China. Zhang, Yuandong,Liu, Shirong,Liu, Yanchun,Gu, Fengxue,Li, Chao. 2013

[11]Fate of photosynthetically-fixed carbon in soybean crops measured using C-13 labelling after long-term fertilization of Phaeozem soils in Northeast China. Qiao, Yunfa,Han, Xiaozeng,Miao, Shujie,Silva, Lucas C. R.,Horwath, William R.,Yan, Chunjuan. 2012

[12]Long-term effects of returning wheat straw to croplands on soil compaction and nutrient availability under conventional tillage. Guo, Z.,Wang, D. Z.,Guo, Z.,Wang, D. Z.. 2013

[13]Effect of new irrigation technology on the physiology and water use efficiency of potato by Reclaimed Water Irrigation. Qi, Xuebin,Huang, Zongdong,Qiao, Dongmei,Li, Ping,Zhao, Zhijuan,Fan, Tao,Wu, Haiqing,Fan, Xiangyang,Hu, Chao,Zhu, Donghai,Wang, Xin. 2013

[14]LS-SVM data mining analysis: how does biochar influence soil net nitrogen mineralization in the field?. Deng, Jianqiang,Chen, Xiaomin,Nan, Jiangkuan,Du, Zhenjie,Deng, Jianqiang,Wang, Rui,Du, Zhenjie.

[15]Effects of warming and nitrogen deposition on the coupling mechanism between soil nitrogen and phosphorus in Songnen Meadow Steppe, northeastern China. Zhang, Nanyi,Song, Piao,Guo, Jixun,Gao, Yingzhi,Guo, Rui,Song, Piao.

[16]Deficit irrigation based on drought tolerance and root signalling in potatoes and tomatoes. Jensen, Christian R.,Liu, Fulai,Jacobsen, Sven-Erik,Plauborg, Finn,Andersen, Mathias N.,Psarras, Georgios,Chartzoulakis, Kostas,Janowiak, Franciszek,Stikic, Radmila,Jovanovic, Zorica,Li, Guitong,Qi, Xuebin. 2010

[17]Study on the Correlation of Spectral Characteristic and Nitrogen Content of the Soil in Citrus Orchard of Three Gorges Reservoir Area. Yi Shi-lai,Deng Lie,He Shao-lan,Zheng Yong-qiang,Xie Rang-jin,Zhang Xuan,Yi Shi-lai,Deng Lie,He Shao-lan,Zheng Yong-qiang,Xie Rang-jin,Zhang Xuan,Yi Shi-lai,Deng Lie,He Shao-lan,Zheng Yong-qiang,Xie Rang-jin,Zhang Xuan. 2009

[18]Wild pollinators enhance oilseed rape yield in small-holder farming systems in China. Zou, Yi,van der Werf, Wopke,Zou, Yi,Xiao, Haijun,Bianchi, Felix J. J. A.,Jauker, Frank,Luo, Shudong. 2017

[19]A horizon scan of future threats and opportunities for pollinators and pollination. Brown, Mark J. F.,Dicks, Lynn V.,Paxton, Robert J.,Paxton, Robert J.,Baldock, Katherine C. R.,Baldock, Katherine C. R.,Barron, Andrew B.,Chauzat, Marie-Pierre,Chauzat, Marie-Pierre,Freitas, Breno M.,Goulson, Dave,Jepsen, Sarina,Kremen, Claire,Li, Jilian,Neumann, Peter,Pattemore, David E.,Potts, Simon G.,Schweiger, Oliver,Seymour, Colleen L.,Seymour, Colleen L.,Stout, Jane C.. 2016

[20]How much land-based greenhouse gas mitigation can be achieved without compromising food security and environmental goals?. Smith, Pete,Haberl, Helmut,Erb, Karl-heinz,Lauk, Christian,Popp, Alexander,Harper, Richard,Tubiello, Francesco N.,de Siqueira Pinto, Alexandre,Bustamante, Mercedes,Jafari, Mostafa,Sohi, Saran,Masera, Omar,Boettcher, Hannes,Berndes, Goeran,Ahammad, Helal,Clark, Harry,Dong, Hongmin,Elsiddig, Elnour A.,Mbow, Cheikh,Ravindranath, Nijavalli H.,Rice, Charles W.,Abad, Carmenza Robledo,Abad, Carmenza Robledo,Romanovskaya, Anna,Sperling, Frank,Herrero, Mario,Herrero, Mario,House, Joanna I.,Rose, Steven.

作者其他论文 更多>>

微信小程序