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Evaluation of ecosystem services of wheatmaize cropping system under different farming modes in the rainfed area of southern Henan Province.

LI Xiang-dong**, ZHANG De-qi, WANG Han-fang, SHAO Yun-hui, FANG Bao-ting, YUE Jun-qin, LU Feng-rong, MA Fu-ju, QIN Feng, YANG Cheng   

  1. (Wheat Research Institute of Henan Academy of Agricultural Sciences; National Laboratory of Wheat Engineering; Key Laboratory of Wheat Biology and Genetic Breeding in Central HuangHuai Region, Ministry of Agriculture & Henan Provincial Key Laboratory of Wheat Biology, Zhengzhou 450002, China)
  • Online:2015-05-10 Published:2015-05-10

Abstract:

The ecosystem services of the cropland under different farming modes in the rainfed region in southern Henan Province were evaluated using monetary normalization method. In this region, winter wheatsummer maize rotation is the major farming practice. Data of field experiment during 2007-2014 were used. Six farming modes were designed: traditional tillage (T1), nonstraw mulching and non-subsoiling before sowing for corn + straw mulching and nontillage for wheat (T2), straw mulching and nonsubsoiling for corn + nonstraw mulching and nontillage for wheat (T3), nonstraw mulching and subsoiling before sowing for corn + nonstraw mulching and nontillage for wheat (T4), straw mulching and subsoiling before sowing for corn + straw mulching and nontillage for wheat (T5), and nonstraw mulching and nonsubsoiling for corn + strawreturn and rotary tilling (T6). The ecosystem service values of agricultural production, organic matter accumulation, nutrition accumulation and cycling, water storage, and air regulation were assessed. The results showed that T5 had the highest value of total ecosystem services (49326 yuan·hm-2), followed by T1 (45345 yuan·hm-2), and then T4, T2, T3, and T6 in order. The total ecosystem services value of T5 was 8.78%, 9.67%, 13.46%, 13.57% and 19.03% higher than T1, T4, T2, T3 and T6, respectively. The results suggested that mode T5 is extendable in the rainfed region in southern Henan Province because it fits the ecological and climatic features and the local crop production system.
 

Key words: cucumber, allelochemical stress, root border cell, nitric oxide (NO), Eupatorium adenophorum extract