Effect of Straw Returning on Cropland Soil Meso-and Micro-Arthropods Community in the Black Soil Area
This study investigated the influence of corn straw returning to soil on the meso-and micro-Arthropods Community in black soil area of Gongzuling,Jilin Province geographically located in 40°52′-46°18′N,121°38′-131°19′E with elevation 150-222 m).The product of corn straw there was 7 500 kg/hm2 on average.Five treatments of shattered corn straw residue with a gradient 0％,50％,100％,150％ and 200％ of the production were returned to the soil in April 2011.We sampled the soil of each treatment at September 2011 and September 2012 to identified the meso-and micro-Arthropods into families.A total of 7 238 individuals animals of meso-and micro-Arthropods,belonged to 3 classes,4 orders,3 suborders and 1 1 super-families,were collected,2 795 individuals in 2011,belonged to 3 classes,4 orders,3 suborders and 6 super-families,and 4 443 individuals in 2012,belonged to 3 classes,4 orders,3 suborders and 8 super-families (Table 2).Our data indicated that soil meso-and micro-Arthropods Community was significantly effected by the application of corn straw return to black soil (P ＜ 0.01) (Table 3),four indices,total individuals,total groups,diversity index and biomass had increased with the amount increase of corn straw returned to soil increase.A significantly differences were also found in the four indices between the 2011 and 2012 (P ＜ 0.001) (Table 3) with the time duration increase.The redundancy analysis (RDA) showed that the largest effect on soil meso-and micro-Arthropods was soil moisture (Fig.3).Soil temperature,soil moisture and soil pH had a negatively effect on animals belonging to Mesostigmata,Neelidae and Hypogastruridae.
Soil physical and chemical propertiesCommunity diversityCorrelationRedundancy analysis
NETL
NSTL
万方数据
维普
